developers

Download

developers@lists.mariadb.org

4 participants
6831 discussions

[Maria-developers] WL#230 New (by Mitchh): Extended Aggregates Functionality
by worklog-noreply＠askmonty.org 19 Jul '11

19 Jul '11

----------------------------------------------------------------------- WORKLOG TASK -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- TASK...........: Extended Aggregates Functionality CREATION DATE..: Tue, 19 Jul 2011, 13:43 SUPERVISOR.....: IMPLEMENTOR....: COPIES TO......: CATEGORY.......: Server-RawIdeaBin TASK ID........: 230 (http://askmonty.org/worklog/?tid=230) VERSION........: WorkLog-4.0 STATUS.........: Un-Assigned PRIORITY.......: 60 WORKED HOURS...: 0 ESTIMATE.......: 0 (hours remain) ORIG. ESTIMATE.: 0 PROGRESS NOTES: DESCRIPTION: This idea is really an extension to SQL. It was implemented at my suggestion for the SQL like EPL (Event Processing language) over at Esper project (http://esper.codehaus.org) Basically the idea is to extend all aggregates (count(), avg() etc) so that they can accept an optional boolean filter expression as a second argument. Example use case: select count(*, color='black'), count(*) as percentBlack from Marbles; This is more expressive and more efficient than using subselects. original suggestion can be found at http://old.nabble.com/Feature-suggestion--filtering-inside-aggregates-to319… Mitch ESTIMATED WORK TIME ESTIMATED COMPLETION DATE ----------------------------------------------------------------------- WorkLog (v4.0.0)

1 0

Re: [Maria-developers] [Commits] Rev 3119: Fixed LP BUG#800696. in file:///home/bell/maria/bzr/work-maria-5.3-lpb800696/
by Timour Katchaounov 19 Jul '11

19 Jul '11

Sanja, These are some general notes about the patch: - Change Item::add_if_unique() to a method of base_list, and the List template class. - There is no need in subselect_engine::nest_level() because a subquery predicate is always at the same nest level irrespective of the chosen engine. The class Item_subselect has a member Item_subselect::unit, which should be sufficient to check the nest_level of the subquery. IMO this will simplify the patch visibly. I am pretty sure that if you add an assert, you will see that any engine will return the same nest_level as Item_subselect::unit->first_select(). - The commit comment is hard to understand. - Please first describe what was the problem, why there was a crash, and what is the generic problem with the current implementation. - Then describe what is the solution. - Fix the English of the commit comment. There are few more comments below marked with "timour:". Timour === modified file 'mysql-test/r/subselect_cache.result' --- a/mysql-test/r/subselect_cache.result 2011-02-03 15:00:28 +0000 +++ b/mysql-test/r/subselect_cache.result 2011-07-19 09:15:34 +0000 @@ -3272,6 +3272,7 @@ FROM t2 ) AND table1 .`col_varchar_key` col_varchar_nokey drop table t1,t2; set @@optimizer_switch= default; +set optimizer_switch='subquery_cache=on'; # LP BUG#615378 (incorrect NULL result returning in Item_cache) CREATE TABLE `t1` ( `pk` int(11) NOT NULL AUTO_INCREMENT, @@ -3310,3 +3311,25 @@ GROUP BY field3 HAVING (field3 <= 'h' AND field2 != 4) ; field2 field3 drop tables t1, t2, t3; +# +# Aggregate function in parameters test +# +CREATE TABLE t1 ( a INT, b INT, c INT, KEY (a, b)); +INSERT INTO t1 VALUES +( 1, 1, 1 ), +( 1, 2, 2 ), +( 1, 3, 3 ), +( 1, 4, 6 ), +( 1, 5, 5 ), +( 1, 9, 13 ), +( 2, 1, 6 ), +( 2, 2, 7 ), +( 2, 3, 8 ); +SELECT a, AVG(t1.b), +(SELECT t11.c FROM t1 t11 WHERE t11.a = t1.a AND t11.b = AVG(t1.b)) AS t11c +FROM t1 GROUP BY a; +a AVG(t1.b) t11c +1 4.0000 6 +2 2.0000 7 +DROP TABLE t1; +set @@optimizer_switch= default; === modified file 'mysql-test/r/subselect_scache.result' --- a/mysql-test/r/subselect_scache.result 2011-07-15 08:36:36 +0000 +++ b/mysql-test/r/subselect_scache.result 2011-07-19 09:15:34 +0000 @@ -232,7 +232,7 @@ id select_type table type possible_keys 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1276 Field or reference 'test.t4.a' of SELECT #3 was resolved in SELECT #1 -Note 1003 select `test`.`t4`.`b` AS `b`,(select avg((`test`.`t2`.`a` + (select min(`test`.`t3`.`a`) from `test`.`t3` where (`test`.`t3`.`a` >= `test`.`t4`.`a`)))) from `test`.`t2`) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4` +Note 1003 select `test`.`t4`.`b` AS `b`,<expr_cache><`test`.`t4`.`a`>((select avg((`test`.`t2`.`a` + (select min(`test`.`t3`.`a`) from `test`.`t3` where (`test`.`t3`.`a` >= `test`.`t4`.`a`)))) from `test`.`t2`)) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4` select * from t3 where exists (select * from t2 where t2.b=t3.a); a 7 @@ -2835,7 +2835,7 @@ id select_type table type possible_keys 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 @@ -2847,7 +2847,7 @@ id select_type table type possible_keys 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary Warnings: -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` DROP TABLE t1,t2; CREATE TABLE t1 (a char(5), b char(5)); INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); === modified file 'mysql-test/t/subselect_cache.test' --- a/mysql-test/t/subselect_cache.test 2010-11-28 13:02:12 +0000 +++ b/mysql-test/t/subselect_cache.test 2011-07-19 09:15:34 +0000 @@ -1567,6 +1567,7 @@ FROM t2 ) AND table1 .`col_varchar_key` drop table t1,t2; set @@optimizer_switch= default; +set optimizer_switch='subquery_cache=on'; # --echo # LP BUG#615378 (incorrect NULL result returning in Item_cache) # @@ -1614,3 +1615,6 @@ GROUP BY field3 HAVING (field3 <= 'h' AND field2 != 4) ; --enable_warnings drop tables t1, t2, t3; + +--echo # +--echo # Aggregate function in parameters test timour: Change the above to: "Test aggregate functions as parameters to ... (to what?)" +--echo # + +CREATE TABLE t1 ( a INT, b INT, c INT, KEY (a, b)); + +INSERT INTO t1 VALUES + ( 1, 1, 1 ), + ( 1, 2, 2 ), + ( 1, 3, 3 ), + ( 1, 4, 6 ), + ( 1, 5, 5 ), + ( 1, 9, 13 ), + + ( 2, 1, 6 ), + ( 2, 2, 7 ), + ( 2, 3, 8 ); + +SELECT a, AVG(t1.b), +(SELECT t11.c FROM t1 t11 WHERE t11.a = t1.a AND t11.b = AVG(t1.b)) AS t11c +FROM t1 GROUP BY a; + +DROP TABLE t1; + + +set @@optimizer_switch= default; === modified file 'sql/item.cc' --- a/sql/item.cc 2011-07-09 09:47:41 +0000 +++ b/sql/item.cc 2011-07-19 09:15:34 +0000 @@ -651,14 +651,14 @@ Item* Item::transform(Item_transformer t A pointer to created wrapper item if successful, NULL - otherwise */ -Item* Item::set_expr_cache(THD *thd, List<Item *> &depends_on) +Item* Item::set_expr_cache(THD *thd) { DBUG_ENTER("Item::set_expr_cache"); Item_cache_wrapper *wrapper; if ((wrapper= new Item_cache_wrapper(this)) && !wrapper->fix_fields(thd, (Item**)&wrapper)) { - if (wrapper->set_cache(thd, depends_on)) + if (wrapper->set_cache(thd)) DBUG_RETURN(NULL); DBUG_RETURN(wrapper); } @@ -666,6 +666,26 @@ Item* Item::set_expr_cache(THD *thd, Lis } +/** + Add this item to the items list if there is no such item in the list + + @param list The list of the Items to add to +*/ + timour: This method implements a set, which is a very generic functionality. Please change this into a method of base_list and List template class. +void Item::add_if_unique(List<Item> &list) +{ + List_iterator_fast<Item> li(list); + Item *item; + while ((item= li++)) + { + if (eq(item, FALSE)) + return; + } + list.push_back(this); + return; +} + + Item_ident::Item_ident(Name_resolution_context *context_arg, const char *db_name_arg,const char *table_name_arg, const char *field_name_arg) @@ -742,6 +762,15 @@ bool Item_ident::remove_dependence_proce } +bool Item_ident::collect_outer_ref_processor(uchar *param) +{ + Collect_deps_prm *prm= (Collect_deps_prm *)param; + if (depended_from && depended_from->nest_level < prm->nest_level) + add_if_unique(*prm->parameters); + return FALSE; +} + + /** Store the pointer to this item field into a list if not already there. @@ -4357,9 +4386,6 @@ Item_field::fix_outer_field(THD *thd, Fi ((ref_type == REF_ITEM || ref_type == FIELD_ITEM) ? (Item_ident*) (*reference) : 0)); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); /* A reference to a view field had been found and we substituted it instead of this Item (find_field_in_tables @@ -4460,9 +4486,6 @@ Item_field::fix_outer_field(THD *thd, Fi mark_as_dependent(thd, last_checked_context->select_lex, context->select_lex, rf, rf); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); return 0; } @@ -4471,9 +4494,6 @@ Item_field::fix_outer_field(THD *thd, Fi mark_as_dependent(thd, last_checked_context->select_lex, context->select_lex, this, (Item_ident*)*reference); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); if (last_checked_context->select_lex->having_fix_field) { Item_ref *rf; @@ -6304,9 +6324,6 @@ bool Item_ref::fix_fields(THD *thd, Item refer_type == FIELD_ITEM) ? (Item_ident*) (*reference) : 0)); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); /* view reference found, we substituted it instead of this Item, so can quit @@ -6357,9 +6374,6 @@ bool Item_ref::fix_fields(THD *thd, Item thd->change_item_tree(reference, fld); mark_as_dependent(thd, last_checked_context->select_lex, thd->lex->current_select, fld, fld); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); /* A reference is resolved to a nest level that's outer or the same as the nest level of the enclosing set function : adjust the value of @@ -6383,9 +6397,6 @@ bool Item_ref::fix_fields(THD *thd, Item DBUG_ASSERT(*ref && (*ref)->fixed); mark_as_dependent(thd, last_checked_context->select_lex, context->select_lex, this, this); - context->select_lex-> - register_dependency_item(last_checked_context->select_lex, - reference); /* A reference is resolved to a nest level that's outer or the same as the nest level of the enclosing set function : adjust the value of @@ -6400,12 +6411,6 @@ bool Item_ref::fix_fields(THD *thd, Item } else if (ref_type() != VIEW_REF) { - if (depended_from && reference) - { - DBUG_ASSERT(context->select_lex != get_depended_from()); - context->select_lex->register_dependency_item(get_depended_from(), - reference); - } /* It could be that we're referring to something that's in ancestor selects. We must make an appropriate mark_as_dependent() call for each such @@ -6901,6 +6906,7 @@ Item_cache_wrapper::~Item_cache_wrapper( } + Item_cache_wrapper::Item_cache_wrapper(Item *item_arg) :orig_item(item_arg), expr_cache(NULL), expr_value(NULL) { @@ -6914,6 +6920,7 @@ Item_cache_wrapper::Item_cache_wrapper(I unsigned_flag= orig_item->unsigned_flag; name= item_arg->name; name_length= item_arg->name_length; + with_subselect= orig_item->with_subselect; if ((expr_value= Item_cache::get_cache(orig_item))) expr_value->setup(orig_item); @@ -6922,11 +6929,28 @@ Item_cache_wrapper::Item_cache_wrapper(I } +/** + Initialize the cache if it is needed +*/ + timour: It seems that the cache is not initialized "if needed". Insted it is intialized on-demand, if not yet initialized. Isn't it so? If yes, please fix the comment. I also don't like the method name - better something like init_on_demand(). +void Item_cache_wrapper::check_initialization() +{ + if (!expr_cache->is_inited()) + { + orig_item->get_cache_parameters(parameters); + expr_cache->init(); + } +} + + void Item_cache_wrapper::print(String *str, enum_query_type query_type) { str->append(func_name()); if (expr_cache) + { + check_initialization(); expr_cache->print(str, query_type); + } else str->append(STRING_WITH_LEN("<<DISABLED>>")); str->append('('); @@ -6962,6 +6986,7 @@ void Item_cache_wrapper::cleanup() expr_cache= 0; /* expr_value is Item so it will be destroyed from list of Items */ expr_value= 0; + parameters.empty(); DBUG_VOID_RETURN; } @@ -6982,11 +7007,11 @@ void Item_cache_wrapper::cleanup() @retval TRUE Error */ -bool Item_cache_wrapper::set_cache(THD *thd, List<Item*> &depends_on) +bool Item_cache_wrapper::set_cache(THD *thd) { DBUG_ENTER("Item_cache_wrapper::set_cache"); DBUG_ASSERT(expr_cache == 0); - expr_cache= new Expression_cache_tmptable(thd, depends_on, expr_value); + expr_cache= new Expression_cache_tmptable(thd, parameters, expr_value); DBUG_RETURN(expr_cache == NULL); } @@ -7011,6 +7036,7 @@ Item *Item_cache_wrapper::check_cache() { Expression_cache_tmptable::result res; Item *cached_value; + check_initialization(); res= expr_cache->check_value(&cached_value); if (res == Expression_cache_tmptable::HIT) DBUG_RETURN(cached_value); === modified file 'sql/item.h' --- a/sql/item.h 2011-07-03 21:59:01 +0000 +++ b/sql/item.h 2011-07-19 09:15:34 +0000 @@ -1155,6 +1155,15 @@ public: { return FALSE; } + struct Collect_deps_prm + { + int nest_level; + List<Item> *parameters; + }; + /** + Collect outer references + */ + virtual bool collect_outer_ref_processor(uchar *arg) {return FALSE; } /** Find a function of a given type @@ -1249,7 +1258,7 @@ public: { return Field::GEOM_GEOMETRY; }; String *check_well_formed_result(String *str, bool send_error= 0); bool eq_by_collation(Item *item, bool binary_cmp, CHARSET_INFO *cs); - Item* set_expr_cache(THD *thd, List<Item*> &depends_on); + Item* set_expr_cache(THD *thd); virtual Item *get_cached_item() { return NULL; } virtual Item_equal *get_item_equal() { return NULL; } @@ -1273,6 +1282,23 @@ public: walk(&Item::view_used_tables_processor, 0, (uchar *) view); return view->view_used_tables; } + + /** + Collect and add to the list cache parameters for this Item. + + @note Now implemented only for subqueries and in_optimizer, + if we need it for general function then this method should + be defined for Item_func. + */ + virtual void get_cache_parameters(List<Item> &parameters) { }; + + /** + Add this item to the items list if there is no such item in the list + + @param list The list of the Items to add to + */ + + void add_if_unique(List<Item> &list); }; @@ -1677,6 +1703,10 @@ public: virtual void print(String *str, enum_query_type query_type); virtual bool change_context_processor(uchar *cntx) { context= (Name_resolution_context *)cntx; return FALSE; } + /** + Collect outer references + */ + virtual bool collect_outer_ref_processor(uchar *arg); friend bool insert_fields(THD *thd, Name_resolution_context *context, const char *db_name, const char *table_name, List_iterator<Item> *it, @@ -2739,8 +2769,11 @@ private: */ Item_cache *expr_value; + List<Item> parameters; + Item *check_cache(); - inline void cache(); + void cache(); + void check_initialization(); public: Item_cache_wrapper(Item *item_arg); @@ -2750,7 +2783,7 @@ public: enum Type type() const { return EXPR_CACHE_ITEM; } enum Type real_type() const { return orig_item->type(); } - bool set_cache(THD *thd, List<Item*> &depends_on); + bool set_cache(THD *thd); bool fix_fields(THD *thd, Item **it); void fix_length_and_dec() {} @@ -2832,6 +2865,9 @@ public: if (result_type() == ROW_RESULT) orig_item->bring_value(); } + virtual bool is_expensive() { return orig_item->is_expensive(); } + bool is_expensive_processor(uchar *arg) + { return orig_item->is_expensive_processor(arg); } bool check_vcol_func_processor(uchar *arg) { return trace_unsupported_by_check_vcol_func_processor("cache"); === modified file 'sql/item_cmpfunc.cc' --- a/sql/item_cmpfunc.cc 2011-07-11 19:48:35 +0000 +++ b/sql/item_cmpfunc.cc 2011-07-19 09:15:34 +0000 @@ -1464,32 +1464,40 @@ Item *Item_in_optimizer::expr_cache_inse DBUG_ENTER("Item_in_optimizer::expr_cache_insert_transformer"); if (args[1]->type() != Item::SUBSELECT_ITEM) DBUG_RETURN(this); // MAX/MIN transformed => do nothing - List<Item*> &depends_on= ((Item_subselect *)args[1])->depends_on; if (expr_cache) DBUG_RETURN(expr_cache); + if (args[1]->expr_cache_is_needed(thd) && + (expr_cache= set_expr_cache(thd))) + DBUG_RETURN(expr_cache); + + DBUG_RETURN(this); +} + + +/** + Collect and add to the list cache parameters for this Item. + + @param parameters The list where to add parameters +*/ + +void Item_in_optimizer::get_cache_parameters(List<Item> &parameters) +{ /* Add left expression to the list of the parameters of the subquery */ if (args[0]->cols() == 1) - depends_on.push_front((Item**)args); + args[0]->add_if_unique(parameters); else { for (uint i= 0; i < args[0]->cols(); i++) { - depends_on.push_front(args[0]->addr(i)); + args[0]->element_index(i)->add_if_unique(parameters); } } - - if (args[1]->expr_cache_is_needed(thd) && - (expr_cache= set_expr_cache(thd, depends_on))) - DBUG_RETURN(expr_cache); - - /* no cache => return list in original state just to be safe */ - for (uint i= 0; i < args[0]->cols(); i++) - depends_on.pop(); - DBUG_RETURN(this); + args[1]->get_cache_parameters(parameters); } + /* The implementation of optimized \<outer expression\> [NOT] IN \<subquery\> predicates. The implementation works as follows. === modified file 'sql/item_cmpfunc.h' --- a/sql/item_cmpfunc.h 2011-07-13 18:05:33 +0000 +++ b/sql/item_cmpfunc.h 2011-07-19 09:15:34 +0000 @@ -259,6 +259,7 @@ public: bool is_expensive(); void set_join_tab_idx(uint join_tab_idx_arg) { args[1]->set_join_tab_idx(join_tab_idx_arg); } + virtual void get_cache_parameters(List<Item> &parameters); }; class Comp_creator === modified file 'sql/item_subselect.cc' --- a/sql/item_subselect.cc 2011-07-18 20:45:38 +0000 +++ b/sql/item_subselect.cc 2011-07-19 09:15:34 +0000 @@ -128,7 +128,6 @@ void Item_subselect::cleanup() } if (engine) engine->cleanup(); - depends_on.empty(); reset(); value_assigned= 0; expr_cache= 0; @@ -520,6 +519,11 @@ bool Item_subselect::walk(Item_processor { for (SELECT_LEX *lex= unit->first_select(); lex; lex= lex->next_select()) { + /* + List_iterator<Item> li(lex->join ? + lex->join->all_fields : + lex->item_list); + */ List_iterator<Item> li(lex->item_list); Item *item; ORDER *order; @@ -583,6 +587,12 @@ bool Item_subselect::exec() } +void Item_subselect::get_cache_parameters(List<Item> &parameters) +{ + Collect_deps_prm prm= { engine->nest_level(), &parameters }; + walk(&Item::collect_outer_ref_processor, TRUE, (uchar*)&prm); +} + int Item_in_subselect::optimize(double *out_rows, double *cost) { int res; @@ -647,7 +657,7 @@ int Item_in_subselect::optimize(double * bool Item_subselect::expr_cache_is_needed(THD *thd) { - return (depends_on.elements && + return ((engine->uncacheable() & UNCACHEABLE_DEPENDENT) && engine->cols() == 1 && optimizer_flag(thd, OPTIMIZER_SWITCH_SUBQUERY_CACHE) && !(engine->uncacheable() & (UNCACHEABLE_RAND | @@ -675,8 +685,7 @@ bool Item_subselect::expr_cache_is_neede bool Item_in_subselect::expr_cache_is_needed(THD *thd) { - return (depends_on.elements && - optimizer_flag(thd, OPTIMIZER_SWITCH_SUBQUERY_CACHE) && + return (optimizer_flag(thd, OPTIMIZER_SWITCH_SUBQUERY_CACHE) && !(engine->uncacheable() & (UNCACHEABLE_RAND | UNCACHEABLE_SIDEEFFECT))); } @@ -1009,7 +1018,7 @@ Item* Item_singlerow_subselect::expr_cac DBUG_RETURN(expr_cache); if (expr_cache_is_needed(thd) && - (expr_cache= set_expr_cache(thd, depends_on))) + (expr_cache= set_expr_cache(thd))) DBUG_RETURN(expr_cache); DBUG_RETURN(this); } @@ -1270,7 +1279,7 @@ Item* Item_exists_subselect::expr_cache_ DBUG_RETURN(expr_cache); if (substype() == EXISTS_SUBS && expr_cache_is_needed(thd) && - (expr_cache= set_expr_cache(thd, depends_on))) + (expr_cache= set_expr_cache(thd))) DBUG_RETURN(expr_cache); DBUG_RETURN(this); } @@ -4263,7 +4272,9 @@ subselect_hash_sj_engine::make_unique_en tab->ref.tmp_table_index_lookup_init(thd, tmp_key, it, FALSE); DBUG_RETURN(new subselect_uniquesubquery_engine(thd, tab, item, - semi_join_conds)); + semi_join_conds, + materialize_engine-> + nest_level())); } @@ -5725,3 +5736,15 @@ end: void subselect_table_scan_engine::cleanup() { } + timour: Make the two methods below inline. + +int subselect_single_select_engine::nest_level() +{ + return select_lex->nest_level; +}; + + +int subselect_union_engine::nest_level() +{ + return unit->first_select()->nest_level; +}; === modified file 'sql/item_subselect.h' --- a/sql/item_subselect.h 2011-07-18 20:45:38 +0000 +++ b/sql/item_subselect.h 2011-07-19 09:15:34 +0000 @@ -102,14 +102,6 @@ public: List<Ref_to_outside> upper_refs; st_select_lex *parent_select; - /** - List of references on items subquery depends on (externally resolved); - - @note We can't store direct links on Items because it could be - substituted with other item (for example for grouping). - */ - List<Item*> depends_on; - /* TRUE<=>Table Elimination has made it redundant to evaluate this select (and so it is not part of QEP, etc) @@ -225,6 +217,7 @@ public: @retval FALSE otherwise */ bool is_expensive_processor(uchar *arg) { return TRUE; } + /** Get the SELECT_LEX structure associated with this Item. @return the SELECT_LEX structure associated with this Item @@ -232,6 +225,7 @@ public: st_select_lex* get_select_lex(); const char *func_name() const { DBUG_ASSERT(0); return "subselect"; } virtual bool expr_cache_is_needed(THD *); + virtual void get_cache_parameters(List<Item> &parameters); friend class select_result_interceptor; friend class Item_in_optimizer; @@ -646,6 +640,7 @@ public: virtual bool no_rows() = 0; virtual enum_engine_type engine_type() { return ABSTRACT_ENGINE; } virtual int get_identifier() { DBUG_ASSERT(0); return 0; } + virtual int nest_level()= 0; protected: void set_row(List<Item> &item_list, Item_cache **row); }; @@ -679,6 +674,7 @@ public: bool no_rows(); virtual enum_engine_type engine_type() { return SINGLE_SELECT_ENGINE; } int get_identifier(); + virtual int nest_level(); friend class subselect_hash_sj_engine; friend class Item_in_subselect; @@ -708,6 +704,7 @@ public: bool is_executed() const; bool no_rows(); virtual enum_engine_type engine_type() { return UNION_ENGINE; } + virtual int nest_level(); }; @@ -736,6 +733,7 @@ class subselect_uniquesubquery_engine: p protected: st_join_table *tab; Item *cond; /* The WHERE condition of subselect */ + int save_nest_level; /* TRUE<=> last execution produced empty set. Valid only when left expression is NULL. @@ -746,8 +744,9 @@ public: // constructor can assign THD because it will be called after JOIN::prepare subselect_uniquesubquery_engine(THD *thd_arg, st_join_table *tab_arg, - Item_subselect *subs, Item *where) - :subselect_engine(thd_arg, subs, 0), tab(tab_arg), cond(where) + Item_subselect *subs, Item *where, int lvl) + :subselect_engine(thd_arg, subs, 0), tab(tab_arg), cond(where), + save_nest_level(lvl) {} ~subselect_uniquesubquery_engine(); void cleanup(); @@ -769,6 +768,7 @@ public: int copy_ref_key_simple(); /* TIMOUR: this method needs refactoring. */ bool no_rows() { return empty_result_set; } virtual enum_engine_type engine_type() { return UNIQUESUBQUERY_ENGINE; } + virtual int nest_level() { return save_nest_level;}; }; @@ -811,8 +811,8 @@ public: // constructor can assign THD because it will be called after JOIN::prepare subselect_indexsubquery_engine(THD *thd_arg, st_join_table *tab_arg, Item_subselect *subs, Item *where, - Item *having_arg, bool chk_null) - :subselect_uniquesubquery_engine(thd_arg, tab_arg, subs, where), + Item *having_arg, bool chk_null, int lvl) + :subselect_uniquesubquery_engine(thd_arg, tab_arg, subs, where, lvl), check_null(chk_null), having(having_arg) {} @@ -905,6 +905,8 @@ public: bool temp= FALSE); bool no_tables();//=>base class + virtual int nest_level() { return materialize_engine->nest_level();}; + protected: /* The engine used to compute the IN predicate. */ subselect_engine *lookup_engine; @@ -1185,6 +1187,7 @@ public: return !(((Item_in_subselect *) item)->null_value); } void print(String*, enum_query_type); + virtual int nest_level() { return lookup_engine->nest_level(); } friend void subselect_hash_sj_engine::cleanup(); }; === modified file 'sql/item_sum.cc' --- a/sql/item_sum.cc 2011-06-27 16:07:24 +0000 +++ b/sql/item_sum.cc 2011-07-19 09:15:34 +0000 @@ -319,7 +319,6 @@ bool Item_sum::register_sum_func(THD *th if (aggr_level >= 0) { ref_by= ref; - thd->lex->current_select->register_dependency_item(aggr_sel, ref); /* Add the object to the list of registered objects assigned to aggr_sel */ if (!aggr_sel->inner_sum_func_list) next= this; @@ -355,6 +354,16 @@ bool Item_sum::register_sum_func(THD *th return FALSE; } + +bool Item_sum::collect_outer_ref_processor(uchar *param) +{ + Collect_deps_prm *prm= (Collect_deps_prm *)param; + SELECT_LEX *ds; + if ((ds= depended_from()) && ds->nest_level < prm->nest_level) + add_if_unique(*prm->parameters); + return FALSE; +} + Item_sum::Item_sum(List<Item> &list) :arg_count(list.elements), forced_const(FALSE) === modified file 'sql/item_sum.h' --- a/sql/item_sum.h 2011-05-10 15:17:43 +0000 +++ b/sql/item_sum.h 2011-07-19 09:15:34 +0000 @@ -374,6 +374,7 @@ public: virtual Field *create_tmp_field(bool group, TABLE *table, uint convert_blob_length); bool walk(Item_processor processor, bool walk_subquery, uchar *argument); + virtual bool collect_outer_ref_processor(uchar *param); bool init_sum_func_check(THD *thd); bool check_sum_func(THD *thd, Item **ref); bool register_sum_func(THD *thd, Item **ref); === modified file 'sql/opt_range.cc' --- a/sql/opt_range.cc 2011-07-04 11:51:16 +0000 +++ b/sql/opt_range.cc 2011-07-19 09:15:34 +0000 @@ -11731,17 +11731,19 @@ check_group_min_max_predicates(Item *con Disallow loose index scan if the MIN/MAX argument field is referenced by a subquery in the WHERE clause. */ + if (cond_type == Item::SUBSELECT_ITEM) { Item_subselect *subs_cond= (Item_subselect*) cond; if (subs_cond->is_correlated) { - DBUG_ASSERT(subs_cond->depends_on.elements > 0); - List_iterator_fast<Item*> li(subs_cond->depends_on); - Item **dep; + DBUG_ASSERT(subs_cond->upper_refs.elements > 0); + List_iterator_fast<Item_subselect::Ref_to_outside> + li(subs_cond->upper_refs); + Item_subselect::Ref_to_outside *dep; while ((dep= li++)) { - if ((*dep)->eq(min_max_arg_item, FALSE)) + if (dep->item->eq(min_max_arg_item, FALSE)) DBUG_RETURN(FALSE); } } === modified file 'sql/opt_subselect.cc' --- a/sql/opt_subselect.cc 2011-07-19 07:45:46 +0000 +++ b/sql/opt_subselect.cc 2011-07-19 09:15:34 +0000 @@ -4167,7 +4167,10 @@ int rewrite_to_index_subquery_engine(JOI timour: Here you could introduce one variable 'nest_level' in the beginning of the method. subselect_uniquesubquery_engine(thd, join_tab, unit->item, - where))); + where, + join-> + select_lex-> + nest_level))); } else if (join_tab[0].type == JT_REF && join_tab[0].ref.items[0]->name == in_left_expr_name) @@ -4183,7 +4186,10 @@ int rewrite_to_index_subquery_engine(JOI unit->item, where, NULL, - 0))); + 0, + join-> + select_lex-> + nest_level))); } } else if (join_tab[0].type == JT_REF_OR_NULL && join_tab[0].ref.items[0]->name == in_left_expr_name && @@ -4199,7 +4205,10 @@ int rewrite_to_index_subquery_engine(JOI unit->item, join->conds, join->having, - 1))); + 1, + join-> + select_lex-> + nest_level))); } } === modified file 'sql/sql_base.cc' --- a/sql/sql_base.cc 2011-07-11 21:00:44 +0000 +++ b/sql/sql_base.cc 2011-07-19 09:15:34 +0000 @@ -6454,11 +6454,6 @@ find_field_in_tables(THD *thd, Item_iden { mark_select_range_as_dependent(thd, last_select, current_sel, found, *ref, item); - if (item->can_be_depended) - { - DBUG_ASSERT((*ref) == (Item*)item); - current_sel->register_dependency_item(last_select, ref); - } } } return found; === modified file 'sql/sql_class.h' --- a/sql/sql_class.h 2011-07-17 07:52:07 +0000 +++ b/sql/sql_class.h 2011-07-19 09:15:34 +0000 @@ -74,6 +74,22 @@ public: /** + Item iterator over List_iterator_fast for Items +*/ + +class Item_iterator_list: public Item_iterator +{ + List_iterator<Item> list; +public: + Item_iterator_list(List_iterator<Item> &arg_list): + list(arg_list) {} + void open() { list.rewind(); } + Item *next() { return (list++); } + void close() {} +}; + + +/** Item iterator over Item interface for rows */ === modified file 'sql/sql_expression_cache.cc' --- a/sql/sql_expression_cache.cc 2011-06-27 16:07:24 +0000 +++ b/sql/sql_expression_cache.cc 2011-07-19 09:15:34 +0000 @@ -23,9 +23,9 @@ ulong subquery_cache_miss, subquery_cache_hit; Expression_cache_tmptable::Expression_cache_tmptable(THD *thd, - List<Item*> &dependants, - Item *value) - :cache_table(NULL), table_thd(thd), list(&dependants), val(value), + List<Item> &dependants, + Item *value) + :cache_table(NULL), table_thd(thd), items(dependants), val(value), inited (0) { DBUG_ENTER("Expression_cache_tmptable::Expression_cache_tmptable"); @@ -60,50 +60,32 @@ static uint field_enumerator(uchar *arg) void Expression_cache_tmptable::init() { - List_iterator<Item*> li(*list); - Item_iterator_ref_list it(li); - Item **item; + List_iterator<Item> li(items); + Item_iterator_list it(li); uint field_counter; DBUG_ENTER("Expression_cache_tmptable::init"); DBUG_ASSERT(!inited); inited= TRUE; cache_table= NULL; - while ((item= li++)) - { - DBUG_ASSERT(item); - if (*item) - { - DBUG_ASSERT((*item)->fixed); - items.push_back((*item)); - } - else - { - /* - This is possible when optimizer already executed this subquery and - optimized out the condition predicate. - */ - li.remove(); - } - } - - if (list->elements == 0) + if (items.elements == 0) { DBUG_PRINT("info", ("All parameters were removed by optimizer.")); DBUG_VOID_RETURN; } + /* add result field */ + items.push_front(val); + cache_table_param.init(); /* dependent items and result */ - cache_table_param.field_count= list->elements + 1; + cache_table_param.field_count= items.elements; /* postpone table creation to index description */ cache_table_param.skip_create_table= 1; - items.push_front(val); - if (!(cache_table= create_tmp_table(table_thd, &cache_table_param, items, (ORDER*) NULL, - FALSE, FALSE, + FALSE, TRUE, ((table_thd->options | TMP_TABLE_ALL_COLUMNS) & ~(OPTION_BIG_TABLES | @@ -122,16 +104,13 @@ void Expression_cache_tmptable::init() goto error; } - /* This list do not contain result field */ - it.open(); - - field_counter=1; + field_counter= 1; if (cache_table->alloc_keys(1) || cache_table->add_tmp_key(0, items.elements - 1, &field_enumerator, (uchar*)&field_counter, TRUE) || ref.tmp_table_index_lookup_init(table_thd, cache_table->key_info, it, - TRUE)) + TRUE, 1 /* skip result field*/)) { DBUG_PRINT("error", ("creating index failed")); goto error; @@ -192,13 +171,6 @@ Expression_cache::result Expression_cach int res; DBUG_ENTER("Expression_cache_tmptable::check_value"); - /* - We defer cache initialization to get item references that are - used at the execution phase. - */ - if (!inited) - init(); - if (cache_table) { DBUG_PRINT("info", ("status: %u has_record %u", @@ -274,16 +246,17 @@ err: void Expression_cache_tmptable::print(String *str, enum_query_type query_type) { - List_iterator<Item*> li(*list); - Item **item; + List_iterator<Item> li(items); + Item *item; bool is_first= TRUE; str->append('<'); + li++; // skip result field while ((item= li++)) { if (!is_first) str->append(','); - (*item)->print(str, query_type); + item->print(str, query_type); is_first= FALSE; } str->append('>'); === modified file 'sql/sql_expression_cache.h' --- a/sql/sql_expression_cache.h 2010-10-27 03:03:59 +0000 +++ b/sql/sql_expression_cache.h 2011-07-19 09:15:34 +0000 @@ -37,6 +37,15 @@ public: Print cache parameters */ virtual void print(String *str, enum_query_type query_type)= 0; + + /** + Is this cache initialized + */ + virtual bool is_inited()= 0; + /** + Initialize this cache + */ + virtual void init()= 0; }; struct st_table_ref; @@ -51,15 +60,16 @@ class Item_field; class Expression_cache_tmptable :public Expression_cache { public: - Expression_cache_tmptable(THD *thd, List<Item*> &dependants, Item *value); + Expression_cache_tmptable(THD *thd, List<Item> &dependants, Item *value); virtual ~Expression_cache_tmptable(); virtual result check_value(Item **value); virtual my_bool put_value(Item *value); void print(String *str, enum_query_type query_type); + bool is_inited() { return inited; }; + void init(); private: - void init(); /* tmp table parameters */ TMP_TABLE_PARAM cache_table_param; @@ -71,10 +81,8 @@ private: struct st_table_ref ref; /* Cached result */ Item_field *cached_result; - /* List of references to the parameters of the expression */ - List<Item*> *list; - /* List of items */ - List<Item> items; + /* List of parameter items */ + List<Item> &items; /* Value Item example */ Item *val; /* Set on if the object has been succesfully initialized with init() */ === modified file 'sql/sql_lex.cc' --- a/sql/sql_lex.cc 2011-07-19 03:05:33 +0000 +++ b/sql/sql_lex.cc 2011-07-19 09:15:34 +0000 @@ -1879,59 +1879,6 @@ void st_select_lex_unit::exclude_tree() } -/** - Register reference to an item which the subqueries depends on - - @param def_sel select against which the item is resolved - @param dependency reference to the item - - @details - This function puts the reference dependency to an item that is either an - outer field or an aggregate function resolved against an outer select into - the list 'depends_on'. It adds it to the 'depends_on' lists for each - subquery between this one and 'def_sel' - the subquery against which the - item is resolved. -*/ - -void st_select_lex::register_dependency_item(st_select_lex *def_sel, - Item **dependency) -{ - SELECT_LEX *s= this; - DBUG_ENTER("st_select_lex::register_dependency_item"); - DBUG_ASSERT(this != def_sel); - DBUG_ASSERT(*dependency); - //psergey-add-stupid: - while (def_sel->merged_into) - def_sel= def_sel->merged_into; - //:eof - do - { - /* check duplicates */ - List_iterator_fast<Item*> li(s->master_unit()->item->depends_on); - Item **dep; - while ((dep= li++)) - { - if ((*dep)->eq(*dependency, FALSE)) - { - DBUG_PRINT("info", ("dependency %s already present", - ((*dependency)->name ? - (*dependency)->name : - "<no name>"))); - DBUG_VOID_RETURN; - } - } - - s->master_unit()->item->depends_on.push_back(dependency); - DBUG_PRINT("info", ("depends_on: Select: %d added: %s", - s->select_number, - ((*dependency)->name ? - (*dependency)->name : - "<no name>"))); - } while ((s= s->outer_select()) != def_sel); - DBUG_VOID_RETURN; -} - - /* st_select_lex_node::mark_as_dependent mark all st_select_lex struct from this to 'last' as dependent === modified file 'sql/sql_lex.h' --- a/sql/sql_lex.h 2011-07-17 06:57:43 +0000 +++ b/sql/sql_lex.h 2011-07-19 09:15:34 +0000 @@ -793,7 +793,6 @@ public: inline bool is_subquery_function() { return master_unit()->item != 0; } bool mark_as_dependent(THD *thd, st_select_lex *last, Item *dependency); - void register_dependency_item(st_select_lex *last, Item **dependency); bool set_braces(bool value); bool inc_in_sum_expr(); === modified file 'sql/sql_select.cc' --- a/sql/sql_select.cc 2011-07-18 06:12:31 +0000 +++ b/sql/sql_select.cc 2011-07-19 09:15:34 +0000 @@ -9613,6 +9613,7 @@ bool JOIN_TAB::preread_init() @param thd Thread handle @param tmp_key The temporary table key @param it The iterator of items for lookup in the key + @param skip Number of fields from the beginning to skip @details Build TABLE_REF object for lookup in the key 'tmp_key' using items @@ -9625,9 +9626,11 @@ bool JOIN_TAB::preread_init() bool TABLE_REF::tmp_table_index_lookup_init(THD *thd, KEY *tmp_key, Item_iterator &it, - bool value) + bool value, + uint skip) { uint tmp_key_parts= tmp_key->key_parts; + uint i; DBUG_ENTER("TABLE_REF::tmp_table_index_lookup_init"); key= 0; /* The only temp table index. */ @@ -9648,7 +9651,8 @@ bool TABLE_REF::tmp_table_index_lookup_i uchar *cur_ref_buff= key_buff; it.open(); - for (uint i= 0; i < tmp_key_parts; i++, cur_key_part++, ref_key++) + for (i= 0; i < skip; i++) it.next(); + for (i= 0; i < tmp_key_parts; i++, cur_key_part++, ref_key++) { Item *item= it.next(); DBUG_ASSERT(item); === modified file 'sql/sql_select.h' --- a/sql/sql_select.h 2011-07-17 07:52:07 +0000 +++ b/sql/sql_select.h 2011-07-19 09:15:34 +0000 @@ -135,7 +135,7 @@ typedef struct st_table_ref bool disable_cache; bool tmp_table_index_lookup_init(THD *thd, KEY *tmp_key, Item_iterator &it, - bool value); + bool value, uint skip= 0); } TABLE_REF;

1 0

Re: [Maria-developers] [Commits] Rev 3115: Fix bug lp:782305 in file:///home/tsk/mprog/src/5.3-work/
by Oleksandr Byelkin 18 Jul '11

18 Jul '11

Hi! 18.07.2011 23:45, timour(a)askmonty.org пишет: > At file:///home/tsk/mprog/src/5.3-work/ > > ------------------------------------------------------------ > revno: 3115 > revision-id: timour(a)askmonty.org-20110718204538-2976m25qh52g6l69 > parent: igor(a)askmonty.org-20110717075207-sg6f40o1ps8mwxrj > fixes bug(s): https://launchpad.net/bugs/782305 > committer: timour(a)askmonty.org > branch nick: 5.3-work > timestamp: Mon 2011-07-18 23:45:38 +0300 > message: > Fix bug lp:782305 > > Analysis: > Both the wrong result and the valgrind warning were a result > of incomplete cleanup of the MIN/MAX subquery rewrite. At the > first execution of the query, the non-aggregate subquery is > transformed into an aggregate MIN/MAX subquery. During the > fix_fields phase of the MIN/MAX function, it sets the property > st_select_lex::with_sum_func to true. > > The second execution of the query finds this flag to be ON. > When optimization reaches the same MIN/MAX subquery > transformation, it tests if the subquery is an aggregate or not. > Since select_lex->with_sum_func == true from the previous > execution, the transformation executes the second branch that > handles aggregate subqueries. This substitutes the subquery > Item into a Item_maxmin_subselect. At the same time elsewhere > it is assumed that the subquery Item is of type > Item_allany_subselect. Ultimately this results in casting the > actual object to the wrong class, and calling the wrong > any_value() method from empty_underlying_subquery(). > > Solution: > Cleanup the st_select_lex::with_sum_func property in the case > when the MIN/MAX transformation was performed for a non-aggregate > subquery, so that the transformation can be repeated. The patch is OK. SUBS_MAXMIN_ENGINE is really good name, thank you! [skip]

1 0

Re: [Maria-developers] WL#177 add server-side error logging
by Sergei Golubchik 16 Jul '11

16 Jul '11

Hi, Holyfoot! Basically, it's all ok. There are comments, see below, but nothing big. Few small changes :) And there's one thought. Log rotation by size is great of course. But there's also log rotation by time (e.g. every week). And logs often contain severity, facility, this, and that, and so on. There are lots of different logging frameworks for different languages (java, c++, .net, etc) - and they exist for a reason. To let plugins (and internal MariaDB subsystems) to log easily and conveniently, we may eventually put all logging features that we have (like, logging to a file, windows event log, or a table) into one place. And even add a couple of new ones. As I see it, you started creating a logging service, that may be expanded in the future. So, I'd like it to be future proof. See for example a list of features that a logger can have: http://www.dotnetlogging.com/concepts/ (I'm not going to discuss this list and to what extent it may be relevant for us :) For now it boils down to two issues. I think it deserves to be called not "logrotate" but "logger". Never mind that it can only "logrotate" now :) And second - logrotate_open() cannot be extended if we'd need rotation by time, we'd need another function. Also log files may have more attributes in the future. So I'd suggest to split logrotate_open() in two: logger_open(const char *path) logger_set_rotation(LOGROTATE_FILE *log, unsigned long size_limit, unsigned int rotations); or may be logger_configure_rotation, or logger_rotate_by_size. Later we could easily add logger_rotate_by_time, logger_set_autoflush, or logger_set_compression, whatever we may need. What do you think? Regards, Sergei Now, comments to the patch: > === modified file 'include/mysql/plugin.h' > --- include/mysql/plugin.h 2010-10-21 09:49:16 +0000 > +++ include/mysql/plugin.h 2011-05-29 14:20:29 +0000 > @@ -71,7 +71,7 @@ typedef struct st_mysql_xid MYSQL_XID; > Plugin API. Common for all plugin types. > */ > > -#define MYSQL_PLUGIN_INTERFACE_VERSION 0x0102 > +#define MYSQL_PLUGIN_INTERFACE_VERSION 0x0103 increase MARIA_PLUGIN_INTERFACE_VERSION instead, your change is not in the vanilla MySQL. by the way, please, fix the HOWTO to say that MARIA_PLUGIN_INTERFACE_VERSION should be increased, not MYSQL_PLUGIN_INTERFACE_VERSION. Thanks. > /* > The allowable types of plugins > === added file 'include/mysql/service_logrotate.h' > --- include/mysql/service_logrotate.h 1970-01-01 00:00:00 +0000 > +++ include/mysql/service_logrotate.h 2011-05-30 15:23:25 +0000 > @@ -0,0 +1,94 @@ > +/* Copyright (C) 2011 Monty Program Ab > + > + This program is free software; you can redistribute it and/or modify > + it under the terms of the GNU General Public License as published by > + the Free Software Foundation; version 2 of the License. > + > + This program is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + GNU General Public License for more details. > + > + You should have received a copy of the GNU General Public License > + along with this program; if not, write to the Free Software > + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ > + > +#ifndef SERVICE_LOGROTATE_INCLUDED > +#define SERVICE_LOGROTATE_INCLUDED MYSQL_SERVICE_LOGROTATE_INCLUDED that is, with the directory name (it's a general rule, to avoid conflicts between include guards from identically named files in different directories) > + > +#include <stdarg.h> wrap this include in #ifndef MYSQL_ABI_CHECK ... #endif (see, e.g. service_thd_alloc.h) > + > +/** > + @file > + logrotate service > + > + Log file with rotation implementation. > + > + This service implements logging with possible rotation > + of the log files. Interface intentionally tries to be similar to FILE* > + related functions. > + > + So that one can open the log with logrotate_open(), specifying > + the limit on the logfile size and the rotations number. > + > + Then it's possible to write messages to the log with > + logrotate_printf or logrotate_vprintf functions. > + > + As the size of the logfile grows over the specified limit, > + it is renamed to 'logfile.1'. The former 'logfile.1' becomes > + 'logfile.2', etc. The file 'logfile.rotations' is removed. > + That's how the rotation works. > + > + The rotation can be forced with the logrotate_rotate() call. > + > + Finally the log should be closed with logrotate_close(). > + > +NOTES: Good comment! Just change NOTES to @notes, let's use Doxygen tags inside Doxygen comments > + Implementation checks the size of the log file before it starts new > + printf into it. So the size of the file gets over the limit when it rotates. > + > + The access is secured with the mutex, so the log is threadsafe. > +*/ > + > + > +#ifdef __cplusplus > +extern "C" { > +#endif > + > +typedef struct logrotate_file_st LOGROTATE_FILE; > + > +extern struct logrotate_service_st { > + LOGROTATE_FILE* (*open)(const char *, unsigned long, unsigned int); > + int (*close)(LOGROTATE_FILE *log); > + int (*vprintf)(LOGROTATE_FILE *log, const char *fmt, va_list argptr); > + int (*printf)(LOGROTATE_FILE *log, const char *fmt, ...); > + int (*rotate)(LOGROTATE_FILE *log); > +} *logrotate_service; > + > +#ifdef MYSQL_DYNAMIC_PLUGIN > + > +#define logrotate_open(path,limit,rotations) logrotate_service->\ > + open(path,limit,rotations) > +#define logrotate_close(log) logrotate_service->close(log) > +#define logrotate_rotate(log) logrotate_service->rotate(log) > +#define logrotate_vprintf(log, fmt, argptr) logrotate_service->\ > + vprintf(log, fmt, argptr) > +#define logrotate_printf logrotate_service->printf add parentheses around the whole macro (where possible): (logrotate_service->vprintf(log, fmt, argptr)) > +#else > + > + LOGROTATE_FILE *logrotate_open(const char *path, > + unsigned long size_limit, > + unsigned int rotations); > + int logrotate_close(LOGROTATE_FILE *log); > + int logrotate_vprintf(LOGROTATE_FILE *log, const char *fmt, va_list argptr); > + int logrotate_rotate(LOGROTATE_FILE *log); > + int logrotate_printf(LOGROTATE_FILE *log, const char *fmt, ...); > +#endif > + > + > +#ifdef __cplusplus > +} > +#endif > + > +#endif /*SERVICE_LOGROTATE_INCLUDED*/ > + > === modified file 'libmysqld/Makefile.am' > --- libmysqld/Makefile.am 2010-11-04 15:40:18 +0000 > +++ libmysqld/Makefile.am 2011-05-29 15:55:28 +0000 > @@ -81,6 +81,7 @@ sqlsources = derror.cc field.cc field_co > sql_bootstrap.cc \ > binlog.cc rpl_handler.cc mdl.cc keycaches.cc sql_audit.cc \ > gcalc_slicescan.cc gcalc_tools.cc \ > + sql_logrotate.cc \ What tree are you doing it in? (why the question - Makefile.am and plug.in are no longer used in 5.5) > sql_partition_admin.cc > > libmysqld_int_a_SOURCES= $(libmysqld_sources) > === added file 'plugin/sql_errlog/CMakeLists.txt' > --- plugin/sql_errlog/CMakeLists.txt 1970-01-01 00:00:00 +0000 > +++ plugin/sql_errlog/CMakeLists.txt 2011-05-29 15:58:22 +0000 > @@ -0,0 +1,17 @@ > +# Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. Really? Oracle? :) > +# > +# This program is free software; you can redistribute it and/or modify > +# it under the terms of the GNU General Public License as published by > +# the Free Software Foundation; version 2 of the License. > +# > +# This program is distributed in the hope that it will be useful, > +# but WITHOUT ANY WARRANTY; without even the implied warranty of > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > +# GNU General Public License for more details. > +# > +# You should have received a copy of the GNU General Public License > +# along with this program; if not, write to the Free Software > +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA > + > +MYSQL_ADD_PLUGIN(sql_errlog sql_errlog.c > + MODULE_ONLY MODULE_OUTPUT_NAME "sql_erlg") why non-default module output name? I think MODULE_OUTPUT_NAME should only be used when converting old plugins that have to keep non-default module name for compatibility reasons. new plugins don't need to use MODULE_OUTPUT_NAME at all. > === added file 'plugin/sql_errlog/sql_errlog.c' > --- plugin/sql_errlog/sql_errlog.c 1970-01-01 00:00:00 +0000 > +++ plugin/sql_errlog/sql_errlog.c 2011-05-30 15:30:11 +0000 > @@ -0,0 +1,124 @@ > +/* Copyright (C) 2011 Monty Program Ab > + > + This program is free software; you can redistribute it and/or modify > + it under the terms of the GNU General Public License as published by > + the Free Software Foundation; version 2 of the License. > + > + This program is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + GNU General Public License for more details. > + > + You should have received a copy of the GNU General Public License > + along with this program; if not, write to the Free Software > + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ > + > +#include <mysql/plugin_audit.h> > +#include <stdio.h> > +#include <time.h> > + > +static char *filename; > +static unsigned int rate; > +static unsigned int size_limit; > +static unsigned int rotations; > +static char rotate; > + > +static unsigned int count; > +LOGROTATE_FILE *logfile; > + > +static MYSQL_SYSVAR_UINT(rate, rate, PLUGIN_VAR_RQCMDARG, > + "Sampling rate", NULL, NULL, 1, 0, 1000000, 1); sampling rate of 0 - what does it mean? if it means "disable logging", mention it in the help text. if it doesn't have any sense, set the minimal value to be 1. > + > +static MYSQL_SYSVAR_UINT(size_limit, size_limit, > + PLUGIN_VAR_READONLY, "Log file size limit", NULL, NULL, > + 1000000, 100, 1024*1024L*1024L, 1); > + > +static MYSQL_SYSVAR_UINT(rotations, rotations, > + PLUGIN_VAR_READONLY, "Number of rotations before log is removed.", > + NULL, NULL, 9, 1, 999, 1); > + > +static MYSQL_SYSVAR_BOOL(rotate, rotate, > + PLUGIN_VAR_NOSYSVAR, "Force log rotation", NULL, NULL/*rotate_log*/, > + 0); This seems to be unused. > + > +static MYSQL_SYSVAR_STR(filename, filename, > + PLUGIN_VAR_READONLY | PLUGIN_VAR_RQCMDARG, > + "The file to log sql errors to", NULL, NULL, > + "sql_errors.log"); > + > +static struct st_mysql_sys_var* vars[] = { > + MYSQL_SYSVAR(rate), > + MYSQL_SYSVAR(size_limit), > + MYSQL_SYSVAR(rotations), > + MYSQL_SYSVAR(rotate), > + MYSQL_SYSVAR(filename), > + NULL > +}; > + > +static void log_sql_errors(MYSQL_THD thd __attribute__((unused)), > + const struct mysql_event *ev) > +{ > + const struct mysql_event_general *event = > + (const struct mysql_event_general*)ev; > + if (rate && > + event->event_subclass == MYSQL_AUDIT_GENERAL_ERROR) > + { > + if (++count >= rate) > + { > + struct tm t; > + time_t event_time = event->general_time; > + > + count = 0; > + localtime_r(&event_time, &t); > + logrotate_printf(logfile, "%04d-%02d-%02d %2d:%02d:%02d " > + "[%s] ERROR %d: %s : %s\n", > + t.tm_year + 1900, t.tm_mon + 1, > + t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec, > + event->general_user, event->general_error_code, > + event->general_command, event->general_query); Did you test that? Can you show a sample output? > + } > + } > +} > + > +static int sql_error_log_init(void *p __attribute__((unused))) > +{ > + logfile= logrotate_open(filename, size_limit, rotations); > + if (logfile == NULL) { > + fprintf(stderr, "Could not create file '%s'\n", > + filename); > + return 1; > + } > + count = 0; > + return 0; > +} > + > +static int sql_error_log_deinit(void *p __attribute__((unused))) > +{ > + logrotate_close(logfile); > + return 0; > +} > + > +static struct st_mysql_audit descriptor = > +{ > + MYSQL_AUDIT_INTERFACE_VERSION, > + NULL, > + log_sql_errors, > + { MYSQL_AUDIT_GENERAL_CLASSMASK } > +}; > + > +mysql_declare_plugin(sql_errlog) > +{ > + MYSQL_AUDIT_PLUGIN, > + &descriptor, > + "SQL_ERROR_LOG", > + "Maria DB", "Maria DB" is not the author. You can proudly put your name here :) or "your name, Monty Program Ab" if you'd like > + "Log SQL level errors to a file with rotation", > + PLUGIN_LICENSE_GPL, > + sql_error_log_init, > + sql_error_log_deinit, > + 0x0100, > + NULL, > + vars, > + NULL > +} Add also maria_declare_plugin declaration. Hmm, may be not "add" but "replace" - you can remove mysql_declare_plugin, because this plugin won't work with MySQL anyway, it uses logrotate service. > +mysql_declare_plugin_end; > === modified file 'sql/Makefile.am' > --- sql/Makefile.am 2010-11-09 20:10:44 +0000 > +++ sql/Makefile.am 2011-05-29 15:52:47 +0000 > @@ -180,7 +180,7 @@ mysqld_SOURCES = sql_lex.cc sql_handler. > sql_builtin.cc sql_tablespace.cc partition_info.cc \ > sql_servers.cc event_parse_data.cc sql_signal.cc \ > mdl.cc transaction.cc sql_audit.cc \ > - sha2.cc \ > + sha2.cc sql_logrotate.cc\ should it be in sql or mysys? I think mysys is more appropriate, there's nothing related to "SQL" in log rotation > gcalc_slicescan.cc gcalc_tools.cc \ > sql_alter.cc \ > sql_partition_admin.cc > === added file 'sql/sql_logrotate.cc' > --- sql/sql_logrotate.cc 1970-01-01 00:00:00 +0000 > +++ sql/sql_logrotate.cc 2011-05-30 15:35:18 +0000 > @@ -0,0 +1,172 @@ > +/* Copyright (C) 2011 Monty Program Ab > + > + This program is free software; you can redistribute it and/or modify > + it under the terms of the GNU General Public License as published by > + the Free Software Foundation; version 2 of the License. > + > + This program is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + GNU General Public License for more details. > + > + You should have received a copy of the GNU General Public License > + along with this program; if not, write to the Free Software > + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ > + > + > +#include "my_global.h" > +#include <my_sys.h> > +#include "sql_priv.h" > +#include "mysqld.h" > +#include <mysql/service_logrotate.h> > + > +extern "C" { > + > +typedef struct logrotate_file_st { > + FILE *file; > + char path[FN_REFLEN]; > + long size_limit; > + unsigned int rotations; > + unsigned int index_len; > + size_t path_len; > + pthread_mutex_t lock; > +}; > + > + > +static unsigned int n_dig(unsigned int i) > +{ > + return (i == 0) ? 0 : ((i < 10) ? 1 : ((i < 100) ? 2 : 3)); > +} > + > + > +LOGROTATE_FILE *logrotate_open(const char *path, > + unsigned long size_limit, > + unsigned int rotations) > +{ > + LOGROTATE_FILE *new_log; > + > + /* I don't think we need more rotations, */ > + /* but if it's so, the rotation procedure should be adapted to it. */ > + if (rotations > 999) > + return 0; > + > + if (!(new_log= (LOGROTATE_FILE *) my_malloc(sizeof(LOGROTATE_FILE), MYF(0)))) > + return 0; /* End of memory */ > + new_log->rotations= rotations; > + new_log->size_limit= size_limit; > + new_log->index_len= n_dig(rotations); > + new_log->path_len= strlen(fn_format(new_log->path, path, > + mysql_data_home, "", 4)); > + > + if (new_log->path_len+new_log->index_len+1 > FN_REFLEN || > + !(new_log->file= fopen(new_log->path, "a+"))) > + { > + /* File path too long || Check errno for the cause */ > + my_free(new_log); I'm not sure, but I think that my_free() will reset errno, so the caller won't be able to see what was wrong. To solve it, I think, you can fopen() first, and malloc() later, at the end. Indeed, file operations have a much higher chance of failing than a small allocation, so they should be done first. > + return 0; > + } > + > + setbuf(new_log->file, 0); > + fseek(new_log->file, 0, SEEK_END); > + pthread_mutex_init(&new_log->lock, MY_MUTEX_INIT_FAST); Is that 5.5? use performance schema instrumentation for i/o and mutexes. (ask me on irc, I can explain how) > + return new_log; > +} > + > +int logrotate_close(LOGROTATE_FILE *log) > +{ > + int result; > + pthread_mutex_destroy(&log->lock); > + result= fclose(log->file); > + my_free(log); > + return result; > +} > + > + > +static char *logname(LOGROTATE_FILE *log, char *buf, unsigned int n_log) > +{ > + unsigned int n_zeroes; > + size_t path_len= log->path_len; > + buf[path_len++]= '.'; > + for (n_zeroes= log->index_len - n_dig(n_log); > + n_zeroes > 0; n_zeroes--, path_len++) > + buf[path_len]= '0'; I think you're overcomplicating. index_len is at most three. I'd simply do strcpy(buf+path_len, ".000"); int10_to_str(...) because int10_to_str will add '\0' at the end, in the correct place. Or, even simpler, just use sprintf("%0*d") - this logname function is never used in the tight loop, you don't need to squeeze every last CPU cycle out of it. Being simple is more important here. > + > + int10_to_str(n_log, buf+path_len, 10); > + return buf; > +} > + > + > +static int do_rotate(LOGROTATE_FILE *log) > +{ > + char namebuf[FN_REFLEN]; > + struct stat stbuf; > + int result; > + unsigned int i; > + char *buf_old, *buf_new, *tmp; > + > + memcpy(namebuf, log->path, log->path_len); > + > + /* Delete the latest logfile if exists */ > + if (!stat(logname(log, namebuf, log->rotations), &stbuf) && > + (result= remove(namebuf))) > + return result; No need to remove old file, just rename. see below. > + > + buf_new= namebuf; > + buf_old= log->path; > + for (i=log->rotations-1; i>0; i--) > + { > + logname(log, buf_old, i); > + if (!stat(buf_old, &stbuf) && > + (result= rename(buf_old, buf_new))) > + return result; Use my_rename(). And don't bother if the old file exists. > + tmp= buf_old; > + buf_old= buf_new; > + buf_new= tmp; > + } > + if ((result= fclose(log->file))) > + return result; > + namebuf[log->path_len]= 0; > + result= rename(namebuf, logname(log, log->path, 1)); > + log->file= fopen(namebuf, "a+"); > + return log->file==NULL || result; > +} > + > + > +int logrotate_vprintf(LOGROTATE_FILE *log, const char* fmt, va_list ap) > +{ > + int result; > + pthread_mutex_lock(&log->lock); > + if (ftell(log->file) >= log->size_limit && > + do_rotate(log)) > + { > + result= -1; > + goto exit; /* Log rotation needed but failed */ > + } > + > + result= vfprintf(log->file, fmt, ap); my_vprintf > +exit: > + pthread_mutex_unlock(&log->lock); > + return result; > +} > + > + > +int logrotate_rotate(LOGROTATE_FILE *log) > +{ > + int result; > + pthread_mutex_lock(&log->lock); > + result= do_rotate(log); > + pthread_mutex_unlock(&log->lock); > + return result; > +} > + > + > +int logrotate_printf(LOGROTATE_FILE *log, const char *fmt, ...) > +{ > + int result; > + va_list args; > + va_start(args,fmt); > + result= logrotate_vprintf(log, fmt, args); > + va_end(args); > + return result; > +} > +} /*extern C*/

2 2

Re: [Maria-developers] [Commits] Rev 3103: Make subquery cache off by default. in file:///home/bell/maria/bzr/work-maria-5.3-off/
by Sergey Petrunya 14 Jul '11

14 Jul '11

Hi Sanja, There are TWO possible options: subquery_cache=on subquery_cache=off subselect.test is run THREE times - as t/subselect.test - as subselect_scache.test - as subselect_no_scache.test Apparently one of the runs is redundant. Please run it only TWO times. Ok to push after this is addressed. Please ping me on irc when you've pushed. On Thu, Jul 14, 2011 at 12:11:12PM +0300, sanja(a)askmonty.org wrote: > At file:///home/bell/maria/bzr/work-maria-5.3-off/ > > ------------------------------------------------------------ > revno: 3103 > revision-id: sanja(a)askmonty.org-20110714091111-w1mlc85tn0o6zz5d > parent: psergey(a)askmonty.org-20110713124952-n060gka7r3gxlrdk > committer: sanja(a)askmonty.org > branch nick: work-maria-5.3-off > timestamp: Thu 2011-07-14 12:11:11 +0300 > message: > Make subquery cache off by default. > === modified file 'mysql-test/r/compare.result' > --- a/mysql-test/r/compare.result 2010-09-06 12:34:24 +0000 > +++ b/mysql-test/r/compare.result 2011-07-14 09:11:11 +0000 > @@ -88,7 +88,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`>((select count(0) from `test`.`t1` where ((`test`.`t1`.`b` = `test`.`t2`.`a`) and (concat(`test`.`t1`.`b`,`test`.`t1`.`c`) = concat('0',`test`.`t2`.`a`,'01'))))) AS `x` from `test`.`t2` order by `test`.`t2`.`a` > +Note 1003 select `test`.`t2`.`a` AS `a`,(select count(0) from `test`.`t1` where ((`test`.`t1`.`b` = `test`.`t2`.`a`) and (concat(`test`.`t1`.`b`,`test`.`t1`.`c`) = concat('0',`test`.`t2`.`a`,'01')))) AS `x` from `test`.`t2` order by `test`.`t2`.`a` > DROP TABLE t1,t2; > CREATE TABLE t1 (a TIMESTAMP); > INSERT INTO t1 VALUES (NOW()),(NOW()),(NOW()); > > === modified file 'mysql-test/r/derived_view.result' > --- a/mysql-test/r/derived_view.result 2011-07-11 00:19:45 +0000 > +++ b/mysql-test/r/derived_view.result 2011-07-14 09:11:11 +0000 > @@ -755,7 +755,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > 3 DERIVED t1 ALL NULL NULL NULL NULL 3 100.00 Using temporary; Using filesort > Warnings: > -Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <expr_cache><`test`.`t3`.`a`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select `v1`.`a` from `test`.`v1` join `test`.`t2` where ((`test`.`t2`.`a` = `v1`.`b`) and (<cache>(`test`.`t3`.`a`) = `v1`.`a`))))) > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <in_optimizer>(`test`.`t3`.`a`,<exists>(select `v1`.`a` from `test`.`v1` join `test`.`t2` where ((`test`.`t2`.`a` = `v1`.`b`) and (<cache>(`test`.`t3`.`a`) = `v1`.`a`)))) > SELECT * FROM t3 > WHERE t3.a IN (SELECT v1.a FROM v1, t2 WHERE t2.a = v1.b); > a > @@ -962,7 +962,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > 3 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <expr_cache><0>(<in_optimizer>(0,<exists>(select 0 from `test`.`t1` where (<cache>(0) = 0)))) > +Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <in_optimizer>(0,<exists>(select 0 from `test`.`t1` where (<cache>(0) = 0))) > SELECT * FROM t2 RIGHT JOIN v1 AS t ON t.a != 0 > WHERE t.a IN (SELECT b FROM t1); > a a b > @@ -975,6 +975,6 @@ id select_type table type possible_keys > 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > 2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <expr_cache><0>(<in_optimizer>(0,<exists>(select 0 from `test`.`t1` where (<cache>(0) = 0)))) > +Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <in_optimizer>(0,<exists>(select 0 from `test`.`t1` where (<cache>(0) = 0))) > DROP VIEW v1; > DROP TABLE t1,t2; > > === modified file 'mysql-test/r/explain.result' > --- a/mysql-test/r/explain.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/explain.result 2011-07-14 09:11:11 +0000 > @@ -228,7 +228,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><NULL>((select 1 from `test`.`t2` where (`test`.`t2`.`d` = NULL))) AS `(SELECT 1 FROM t2 WHERE d = c)` from `test`.`t1` > +Note 1003 select (select 1 from `test`.`t2` where (`test`.`t2`.`d` = NULL)) AS `(SELECT 1 FROM t2 WHERE d = c)` from `test`.`t1` > DROP TABLE t1, t2; > # > # Bug #48419: another explain crash.. > > === modified file 'mysql-test/r/group_by.result' > --- a/mysql-test/r/group_by.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/group_by.result 2011-07-14 09:11:11 +0000 > @@ -1742,7 +1742,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t1`.`a`>((select `test`.`t1`.`a`)) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by (<expr_cache><`test`.`t1`.`a`>((select `test`.`t1`.`a`)) + 0) > +Note 1003 select (select `test`.`t1`.`a`) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by ((select `test`.`t1`.`a`) + 0) > EXPLAIN EXTENDED > SELECT (SELECT t1.a) aa, COUNT(DISTINCT b) FROM t1 GROUP BY -aa; > id select_type table type possible_keys key key_len ref rows filtered Extra > @@ -1750,7 +1750,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t1`.`a`>((select `test`.`t1`.`a`)) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by -(<expr_cache><`test`.`t1`.`a`>((select `test`.`t1`.`a`))) > +Note 1003 select (select `test`.`t1`.`a`) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by -((select `test`.`t1`.`a`)) > # should return only one record > SELECT (SELECT tt.a FROM t1 tt LIMIT 1) aa, COUNT(DISTINCT b) FROM t1 > GROUP BY aa; > > === modified file 'mysql-test/r/join_outer.result' > --- a/mysql-test/r/join_outer.result 2011-05-28 02:11:32 +0000 > +++ b/mysql-test/r/join_outer.result 2011-07-14 09:11:11 +0000 > @@ -1438,7 +1438,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t4 eq_ref PRIMARY PRIMARY 4 test.t3.pk 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.t2.pk' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`pk` AS `pk`,<expr_cache><`test`.`t2`.`pk`>((select (`test`.`t3`.`pk` + if(isnull(`test`.`t4`.`pk`),0,`test`.`t4`.`pk`)) from `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`pk` = `test`.`t3`.`pk`)) where (`test`.`t3`.`pk` = (`test`.`t2`.`pk` + 1000)) limit 1)) AS `t` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`pk` = (`test`.`t1`.`pk` + 1000)) and (`test`.`t1`.`pk` > 1000)) group by `test`.`t2`.`pk` > +Note 1003 select `test`.`t2`.`pk` AS `pk`,(select (`test`.`t3`.`pk` + if(isnull(`test`.`t4`.`pk`),0,`test`.`t4`.`pk`)) from `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`pk` = `test`.`t3`.`pk`)) where (`test`.`t3`.`pk` = (`test`.`t2`.`pk` + 1000)) limit 1) AS `t` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`pk` = (`test`.`t1`.`pk` + 1000)) and (`test`.`t1`.`pk` > 1000)) group by `test`.`t2`.`pk` > select t2.pk, > (select t3.pk+if(isnull(t4.pk),0,t4.pk) > from t3 left join t4 on t4.pk=t3.pk > > === modified file 'mysql-test/r/join_outer_jcl6.result' > --- a/mysql-test/r/join_outer_jcl6.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/join_outer_jcl6.result 2011-07-14 09:11:11 +0000 > @@ -1446,7 +1446,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t4 eq_ref PRIMARY PRIMARY 4 test.t3.pk 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.t2.pk' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`pk` AS `pk`,<expr_cache><`test`.`t2`.`pk`>((select (`test`.`t3`.`pk` + if(isnull(`test`.`t4`.`pk`),0,`test`.`t4`.`pk`)) from `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`pk` = `test`.`t3`.`pk`)) where (`test`.`t3`.`pk` = (`test`.`t2`.`pk` + 1000)) limit 1)) AS `t` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`pk` = (`test`.`t1`.`pk` + 1000)) and (`test`.`t1`.`pk` > 1000)) group by `test`.`t2`.`pk` > +Note 1003 select `test`.`t2`.`pk` AS `pk`,(select (`test`.`t3`.`pk` + if(isnull(`test`.`t4`.`pk`),0,`test`.`t4`.`pk`)) from `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`pk` = `test`.`t3`.`pk`)) where (`test`.`t3`.`pk` = (`test`.`t2`.`pk` + 1000)) limit 1) AS `t` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`pk` = (`test`.`t1`.`pk` + 1000)) and (`test`.`t1`.`pk` > 1000)) group by `test`.`t2`.`pk` > select t2.pk, > (select t3.pk+if(isnull(t4.pk),0,t4.pk) > from t3 left join t4 on t4.pk=t3.pk > > === modified file 'mysql-test/r/optimizer_switch.result' > --- a/mysql-test/r/optimizer_switch.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/optimizer_switch.result 2011-07-14 09:11:11 +0000 > @@ -4,19 +4,19 @@ > # > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='index_merge=off,index_merge_union=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='index_merge_union=on'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=off,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,index_merge_sort_union=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=off,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch=4; > ERROR 42000: Variable 'optimizer_switch' can't be set to the value of '4' > set optimizer_switch=NULL; > @@ -43,60 +43,60 @@ set optimizer_switch=default; > set optimizer_switch='index_merge=off,index_merge_union=off,default'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=off,index_merge_union=off,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch=default; > select @@global.optimizer_switch; > @@global.optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set @@global.optimizer_switch=default; > select @@global.optimizer_switch; > @@global.optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > # > # Check index_merge's @@optimizer_switch flags > # > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > > BUG#37120 optimizer_switch allowable values not according to specification > > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,materialization=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,semijoin=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,loosescan=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,semijoin=off,materialization=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,materialization=off,semijoin=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,semijoin=off,materialization=off,loosescan=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,semijoin=off,loosescan=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch='default,materialization=off,loosescan=off'; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > set optimizer_switch=default; > select @@optimizer_switch; > @@optimizer_switch > -index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > +index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=on,firstmatch=off,loosescan=off,materialization=off,in_to_exists=on,semijoin=off,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=off,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on > > === modified file 'mysql-test/r/subselect.result' > --- a/mysql-test/r/subselect.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect.result 2011-07-14 09:11:11 +0000 > @@ -55,7 +55,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > 1 > 1 > @@ -318,7 +318,7 @@ NULL UNION RESULT <union2,3> ALL NULL NU > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t2`.`a`>((select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +Note 1003 select (select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > ERROR 21000: Subquery returns more than 1 row > create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > @@ -336,7 +336,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > Warnings: > Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > ERROR 23000: Column 'a' in field list is ambiguous > drop table t1,t2,t3; > @@ -750,7 +750,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > id > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > @@ -898,7 +898,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > CREATE TABLE t3 (a int(11) default '0'); > INSERT INTO t3 VALUES (1),(2),(3); > SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > @@ -913,7 +913,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > drop table t1,t2,t3; > create table t1 (a float); > select 10.5 IN (SELECT * from t1 LIMIT 1); > @@ -1474,25 +1474,25 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > drop table t1,t2; > create table t2 (a int, b int); > create table t3 (a int); > @@ -1747,14 +1747,14 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > @@ -2290,7 +2290,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > drop table t1; > CREATE TABLE t1 (t1_a int); > INSERT INTO t1 VALUES (1); > @@ -2831,7 +2831,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > @@ -2843,7 +2843,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > DROP TABLE t1,t2; > CREATE TABLE t1 (a char(5), b char(5)); > INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > @@ -4326,13 +4326,13 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > DROP TABLE t1; > # > # Bug#45061: Incorrectly market field caused wrong result. > > === modified file 'mysql-test/r/subselect3.result' > --- a/mysql-test/r/subselect3.result 2011-07-04 21:44:15 +0000 > +++ b/mysql-test/r/subselect3.result 2011-07-14 09:11:11 +0000 > @@ -32,7 +32,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) AS `Z` from `test`.`t2` > explain extended > select a, oref from t2 > where a in (select max(ie) from t1 where oref=t2.oref group by grp); > @@ -41,7 +41,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having (<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having (<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))) > select a, oref, a in ( > select max(ie) from t1 where oref=t2.oref group by grp union > select max(ie) from t1 where oref=t2.oref group by grp > @@ -72,7 +72,7 @@ id select_type table type possible_keys > 1 PRIMARY t3 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > -Note 1003 select <expr_cache><`test`.`t3`.`a`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = 4) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t3`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))))) AS `a in (select max(ie) from t1 where oref=4 group by grp)` from `test`.`t3` > +Note 1003 select <in_optimizer>(`test`.`t3`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = 4) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t3`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) AS `a in (select max(ie) from t1 where oref=4 group by grp)` from `test`.`t3` > set @@optimizer_switch=@save_optimizer_switch; > drop table t1, t2, t3; > create table t1 (a int, oref int, key(a)); > @@ -97,7 +97,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))) AS `Z` from `test`.`t2` > flush status; > select oref, a from t2 where a in (select a from t1 where oref=t2.oref); > oref a > @@ -164,7 +164,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref a a 5 test.t1.b 1 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t3.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<expr_cache><`test`.`t3`.`a`,`test`.`t3`.`oref`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond(((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and (`test`.`t2`.`a` = `test`.`t1`.`b`)) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))) AS `Z` from `test`.`t3` > +Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond(((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and (`test`.`t2`.`a` = `test`.`t1`.`b`)) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))) AS `Z` from `test`.`t3` > drop table t1, t2, t3; > create table t1 (a int NOT NULL, b int NOT NULL, key(a)); > insert into t1 values > @@ -192,7 +192,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref a a 4 test.t1.b 1 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t3.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<expr_cache><`test`.`t3`.`a`,`test`.`t3`.`oref`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`)) and (`test`.`t2`.`a` = `test`.`t1`.`b`))))) AS `Z` from `test`.`t3` > +Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`)) and (`test`.`t2`.`a` = `test`.`t1`.`b`)))) AS `Z` from `test`.`t3` > drop table t1,t2,t3; > create table t1 (oref int, grp int); > insert into t1 (oref, grp) values > @@ -216,7 +216,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > Note 1276 Field or reference 't2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select count(0) from `test`.`t1` group by `test`.`t1`.`grp` having ((`test`.`t1`.`grp` = `test`.`t2`.`oref`) and trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(count(0)))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>(`test`.`t2`.`a`,<exists>(select count(0) from `test`.`t1` group by `test`.`t1`.`grp` having ((`test`.`t1`.`grp` = `test`.`t2`.`oref`) and trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(count(0))))))) AS `Z` from `test`.`t2` > drop table t1, t2; > create table t1 (a int, b int, primary key (a)); > insert into t1 values (1,1), (3,1),(100,1); > @@ -248,7 +248,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`)))))) AS `Z` from `test`.`t2` > select a,b, oref, (a,b) in (select a,b from t1 where c=t2.oref) Z from t2; > a b oref Z > NULL 1 100 0 > @@ -265,7 +265,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(select `test`.`t1`.`a`,`test`.`t1`.`b` from `test`.`t1` join `test`.`t4` where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`)))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(select `test`.`t1`.`a`,`test`.`t1`.`b` from `test`.`t1` join `test`.`t4` where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`))))) AS `Z` from `test`.`t2` > select a,b, oref, > (a,b) in (select a,b from t1,t4 where c=t2.oref) Z > from t2; > @@ -310,7 +310,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery idx idx 5 func 4 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10)) > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`)))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10)) > drop table t1, t2; > create table t1 (oref char(4), grp int, ie int); > insert into t1 (oref, grp, ie) values > @@ -580,7 +580,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery idx idx 5 func 4 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`)))))) AS `Z` from `test`.`t2` > drop table t1,t2; > create table t1 (oref char(4), grp int, ie int primary key); > insert into t1 (oref, grp, ie) values > @@ -711,7 +711,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 100.00 Using index > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t1`.`a`) and (not(<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t1`.`a`) and (not(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))))) > SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1)); > a > SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1 WHERE a > 4)); > > === modified file 'mysql-test/r/subselect3_jcl6.result' > --- a/mysql-test/r/subselect3_jcl6.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect3_jcl6.result 2011-07-14 09:11:11 +0000 > @@ -40,7 +40,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) AS `Z` from `test`.`t2` > explain extended > select a, oref from t2 > where a in (select max(ie) from t1 where oref=t2.oref group by grp); > @@ -49,7 +49,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having (<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) group by `test`.`t1`.`grp` having (<cache>(`test`.`t2`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))) > select a, oref, a in ( > select max(ie) from t1 where oref=t2.oref group by grp union > select max(ie) from t1 where oref=t2.oref group by grp > @@ -80,7 +80,7 @@ id select_type table type possible_keys > 1 PRIMARY t3 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 6 100.00 Using where; Using temporary > Warnings: > -Note 1003 select <expr_cache><`test`.`t3`.`a`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = 4) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t3`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`))))))) AS `a in (select max(ie) from t1 where oref=4 group by grp)` from `test`.`t3` > +Note 1003 select <in_optimizer>(`test`.`t3`.`a`,<exists>(select max(`test`.`t1`.`ie`) from `test`.`t1` where (`test`.`t1`.`oref` = 4) group by `test`.`t1`.`grp` having trigcond((<cache>(`test`.`t3`.`a`) = <ref_null_helper>(max(`test`.`t1`.`ie`)))))) AS `a in (select max(ie) from t1 where oref=4 group by grp)` from `test`.`t3` > set @@optimizer_switch=@save_optimizer_switch; > drop table t1, t2, t3; > create table t1 (a int, oref int, key(a)); > @@ -105,7 +105,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where (`test`.`t1`.`oref` = `test`.`t2`.`oref`) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))) AS `Z` from `test`.`t2` > flush status; > select oref, a from t2 where a in (select a from t1 where oref=t2.oref); > oref a > @@ -172,7 +172,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref a a 5 test.t1.b 1 100.00 Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan > Warnings: > Note 1276 Field or reference 'test.t3.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<expr_cache><`test`.`t3`.`a`,`test`.`t3`.`oref`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond(((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and (`test`.`t2`.`a` = `test`.`t1`.`b`)) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))) AS `Z` from `test`.`t3` > +Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond(((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and (`test`.`t2`.`a` = `test`.`t1`.`b`)) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))) AS `Z` from `test`.`t3` > drop table t1, t2, t3; > create table t1 (a int NOT NULL, b int NOT NULL, key(a)); > insert into t1 values > @@ -200,7 +200,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref a a 4 test.t1.b 1 100.00 Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan > Warnings: > Note 1276 Field or reference 'test.t3.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<expr_cache><`test`.`t3`.`a`,`test`.`t3`.`oref`>(<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`)) and (`test`.`t2`.`a` = `test`.`t1`.`b`))))) AS `Z` from `test`.`t3` > +Note 1003 select `test`.`t3`.`a` AS `a`,`test`.`t3`.`oref` AS `oref`,<in_optimizer>(`test`.`t3`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`)) and (`test`.`t2`.`a` = `test`.`t1`.`b`)))) AS `Z` from `test`.`t3` > drop table t1,t2,t3; > create table t1 (oref int, grp int); > insert into t1 (oref, grp) values > @@ -224,7 +224,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > Note 1276 Field or reference 't2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select count(0) from `test`.`t1` group by `test`.`t1`.`grp` having ((`test`.`t1`.`grp` = `test`.`t2`.`oref`) and trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(count(0)))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>(`test`.`t2`.`a`,<exists>(select count(0) from `test`.`t1` group by `test`.`t1`.`grp` having ((`test`.`t1`.`grp` = `test`.`t2`.`oref`) and trigcond((<cache>(`test`.`t2`.`a`) = <ref_null_helper>(count(0))))))) AS `Z` from `test`.`t2` > drop table t1, t2; > create table t1 (a int, b int, primary key (a)); > insert into t1 values (1,1), (3,1),(100,1); > @@ -256,7 +256,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`)))))) AS `Z` from `test`.`t2` > select a,b, oref, (a,b) in (select a,b from t1 where c=t2.oref) Z from t2; > a b oref Z > NULL 1 100 0 > @@ -273,7 +273,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(select `test`.`t1`.`a`,`test`.`t1`.`b` from `test`.`t1` join `test`.`t4` where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`)))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(select `test`.`t1`.`a`,`test`.`t1`.`b` from `test`.`t1` join `test`.`t4` where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`a`)) and trigcond(<is_not_null_test>(`test`.`t1`.`b`))))) AS `Z` from `test`.`t2` > select a,b, oref, > (a,b) in (select a,b from t1,t4 where c=t2.oref) Z > from t2; > @@ -318,7 +318,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery idx idx 5 func 4 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10)) > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`)))))) AS `Z` from `test`.`t2` where ((`test`.`t2`.`b` = 10) and (`test`.`t2`.`a` = 10)) > drop table t1, t2; > create table t1 (oref char(4), grp int, ie int); > insert into t1 (oref, grp, ie) values > @@ -588,7 +588,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 index_subquery idx idx 5 func 4 100.00 Using where; Full scan on NULL key > Warnings: > Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<expr_cache><`test`.`t2`.`b`,`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`))))))) AS `Z` from `test`.`t2` > +Note 1003 select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on idx checking NULL where ((`test`.`t1`.`oref` = `test`.`t2`.`oref`) and trigcond(((<cache>(`test`.`t2`.`a`) = `test`.`t1`.`ie1`) or isnull(`test`.`t1`.`ie1`))) and trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`ie2`) or isnull(`test`.`t1`.`ie2`)))) having (trigcond(<is_not_null_test>(`test`.`t1`.`ie1`)) and trigcond(<is_not_null_test>(`test`.`t1`.`ie2`)))))) AS `Z` from `test`.`t2` > drop table t1,t2; > create table t1 (oref char(4), grp int, ie int primary key); > insert into t1 (oref, grp, ie) values > @@ -719,7 +719,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 100.00 Using index > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t1`.`a`) and (not(<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) having trigcond(<is_not_null_test>(`test`.`t1`.`a`)))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`b` = `test`.`t1`.`a`) and (not(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` where trigcond(((<cache>(`test`.`t2`.`b`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) having trigcond(<is_not_null_test>(`test`.`t1`.`a`))))))) > SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1)); > a > SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1 WHERE a > 4)); > > === modified file 'mysql-test/r/subselect4.result' > --- a/mysql-test/r/subselect4.result 2011-07-09 07:20:15 +0000 > +++ b/mysql-test/r/subselect4.result 2011-07-14 09:11:11 +0000 > @@ -224,7 +224,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > Warnings: > Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><NULL>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1` > +Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1` > first equivalent variant > SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c ; > RESULT > @@ -235,7 +235,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > Warnings: > Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><NULL>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1` group by NULL > +Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1` group by NULL > second equivalent variant > SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ; > RESULT > @@ -246,7 +246,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > Warnings: > Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select <expr_cache><NULL>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1` group by NULL > +Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1` group by NULL > DROP TABLE t1,t2; > # > # BUG#45928 "Differing query results depending on MRR and > > === modified file 'mysql-test/r/subselect_mat.result' > --- a/mysql-test/r/subselect_mat.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect_mat.result 2011-07-14 09:11:11 +0000 > @@ -48,7 +48,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`))))) > select * from t1 where a1 in (select b1 from t2 where b1 > '0'); > a1 a2 > 1 - 01 2 - 01 > @@ -59,7 +59,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`))))) > select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -70,7 +70,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))) > select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2); > a1 a2 > 1 - 01 2 - 01 > @@ -81,7 +81,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`))))) > select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -92,7 +92,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL _it1_idx # NULL 3 100.00 Using where; > 2 SUBQUERY t2i index it2i1,it2i3 it2i1 # NULL 5 100.00 Using where; > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`))))) > select * from t1i where a1 in (select b1 from t2i where b1 > '0'); > a1 a2 > 1 - 01 2 - 01 > @@ -103,7 +103,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL # 18 # 3 100.00 # > 2 SUBQUERY t2i range it2i1,it2i3 # 9 # 3 100.00 # > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`))))) > select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -114,7 +114,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL _it1_idx # NULL 3 100.00 Using where; > 2 SUBQUERY t2i index it2i1,it2i3 it2i3 # NULL 5 100.00 Using where; > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))) > select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0'); > a1 a2 > 1 - 01 2 - 01 > @@ -125,7 +125,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL # # # 3 100.00 # > 2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))) > select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2); > a1 a2 > 1 - 01 2 - 01 > @@ -136,7 +136,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL # # # 3 100.00 # > 2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`min(b2)`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`min(b2)`))))) > select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -147,7 +147,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`max(b2)`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`max(b2)`))))) > select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -176,7 +176,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`))))) > select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); > a1 a2 > 1 - 01 2 - 01 > @@ -223,7 +223,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))) > select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2); > a1 a2 > 1 - 01 2 - 01 > @@ -234,7 +234,7 @@ id select_type table type possible_keys > 1 PRIMARY t1i index NULL it1i3 18 NULL 3 100.00 Using where; Using index > 2 SUBQUERY t2i index NULL it2i3 18 NULL 5 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))) > select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2); > a1 a2 > 1 - 01 2 - 01 > @@ -289,7 +289,7 @@ id select_type table type possible_keys > 4 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3`.`c2` = `<subquery4>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1`.`a2` = `<subquery3>`.`c2`))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3`.`c2` = `<subquery4>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1`.`a2` = `<subquery3>`.`c2`)))))) > select * from t1 > where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and > (a1, a2) in (select c1, c2 from t3 > @@ -308,7 +308,7 @@ id select_type table type possible_keys > 4 SUBQUERY t2i index it2i2 # # # 5 100.00 # > 2 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 # > Warnings: > -Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c2`,`test`.`t3i`.`c1`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery4>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery3>`.`c2`))))))) > +Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`b2`))))) and <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery4>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery4>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery3>`.`c2`)))))) > select * from t1i > where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and > (a1, a2) in (select c1, c2 from t3i > @@ -331,7 +331,7 @@ id select_type table type possible_keys > 4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > 3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`))))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))) > select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 where c2 LIKE '%02') or > @@ -356,7 +356,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3c`.`c1`,`test`.`t3c`.`c2` from `test`.`t3` `t3c` where <expr_cache><`test`.`t3c`.`c2`,`test`.`t3c`.`c1`>(<in_optimizer>((`test`.`t3c`.`c1`,`test`.`t3c`.`c2`),(`test`.`t3c`.`c1`,`test`.`t3c`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3c`.`c1` in <temporary table> on distinct_key where ((`test`.`t3c`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3c`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`)))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3c`.`c1`,`test`.`t3c`.`c2` from `test`.`t3` `t3c` where <in_optimizer>((`test`.`t3c`.`c1`,`test`.`t3c`.`c2`),(`test`.`t3c`.`c1`,`test`.`t3c`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3c`.`c1` in <temporary table> on distinct_key where ((`test`.`t3c`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3c`.`c2` = `<subquery6>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))) > select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 t3a where c1 = a1) or > @@ -392,7 +392,7 @@ id select_type table type possible_keys > 8 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 # > NULL UNION RESULT <union1,7> ALL NULL # # # NULL NULL # > Warnings: > -Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`)))))))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery8>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery8>`.`b2`)))))) and <expr_cache><`test`.`t1i`.`a2`,`test`.`t1i`.`a1`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c2`,`test`.`t3i`.`c1`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery10>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery10>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery9>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery9>`.`c2`)))))))) > +Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`))))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`))))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery6>`.`b1`) and (`test`.`t3`.`c2` = `<subquery6>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery5>`.`c1`) and (`test`.`t1`.`a2` = `<subquery5>`.`c2`))))))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where (<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery8>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery8>`.`b2`))))) and <in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where ((`test`.`t3i`.`c1` = `<subquery10>`.`b1`) and (`test`.`t3i`.`c2` = `<subquery10>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery9>`.`c1`) and (`test`.`t1i`.`a2` = `<subquery9>`.`c2`))))))) > (select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 where c2 LIKE '%02') or > @@ -421,7 +421,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery5>`.`b1`) and (`test`.`t3`.`c2` = `<subquery5>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery4>`.`c1`) and (`test`.`t1`.`a2` = `<subquery4>`.`c2`))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery5>`.`b1`) and (`test`.`t3`.`c2` = `<subquery5>`.`b2`))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery4>`.`c1`) and (`test`.`t1`.`a2` = `<subquery4>`.`c2`)))))) > select * from t1 > where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and > (a1, a2) in (select c1, c2 from t3 > @@ -444,7 +444,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`c1` = `test`.`t1`.`a1`) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c2`,`test`.`t3`.`c1`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery5>`.`b1`) and (`test`.`t3`.`c2` = `<subquery5>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery4>`.`c1`) and (`test`.`t3`.`c2` = `<subquery4>`.`c2`))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`c1` = `test`.`t1`.`a1`) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b2` > '0') ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery5>`.`b1`) and (`test`.`t3`.`c2` = `<subquery5>`.`b2`))))) ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where ((`test`.`t3`.`c1` = `<subquery4>`.`c1`) and (`test`.`t3`.`c2` = `<subquery4>`.`c2`)))))) > select * from t1, t3 > where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and > (c1, c2) in (select c1, c2 from t3 > @@ -466,7 +466,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`>(<in_optimizer>(`test`.`t3`.`c1`,<exists>(select `test`.`t1`.`a1` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t3`.`c1`) = `test`.`t1`.`a1`)) union select `test`.`t2`.`b1` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t3`.`c1`) = `test`.`t2`.`b1`))))) > +Note 1003 select `test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t3` where <in_optimizer>(`test`.`t3`.`c1`,<exists>(select `test`.`t1`.`a1` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t3`.`c1`) = `test`.`t1`.`a1`)) union select `test`.`t2`.`b1` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t3`.`c1`) = `test`.`t2`.`b1`)))) > select * from t3 > where c1 in (select a1 from t1 where a1 > '0' UNION select b1 from t2 where b1 < '9'); > c1 c2 > @@ -490,14 +490,14 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t1.a2' of SELECT #6 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t3c`.`c1`,`test`.`t3c`.`c2` from `test`.`t3` `t3c` where (<expr_cache><`test`.`t3c`.`c2`,`test`.`t3c`.`c1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t3c`.`c1`,`test`.`t3c`.`c2`),<exists>(<index_lookup>(<cache>(`test`.`t3c`.`c1`) in t2i on it2i3 where (((`test`.`t2i`.`b2` > '0') or (`test`.`t2i`.`b2` = `test`.`t1`.`a2`)) and (<cache>(`test`.`t3c`.`c1`) = `test`.`t2i`.`b1`) and (<cache>(`test`.`t3c`.`c2`) = `test`.`t2i`.`b2`)))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t3c`.`c1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t3c`.`c2`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`)))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t3c`.`c1`,`test`.`t3c`.`c2` from `test`.`t3` `t3c` where (<in_optimizer>((`test`.`t3c`.`c1`,`test`.`t3c`.`c2`),<exists>(<index_lookup>(<cache>(`test`.`t3c`.`c1`) in t2i on it2i3 where (((`test`.`t2i`.`b2` > '0') or (`test`.`t2i`.`b2` = `test`.`t1`.`a2`)) and (<cache>(`test`.`t3c`.`c1`) = `test`.`t2i`.`b1`) and (<cache>(`test`.`t3c`.`c2`) = `test`.`t2i`.`b2`))))) and (<cache>(`test`.`t1`.`a1`) = `test`.`t3c`.`c1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t3c`.`c2`))))) > explain extended > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01'))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01')))) > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01'); > a1 a2 > 1 - 01 2 - 01 > @@ -507,7 +507,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01'))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01')))) > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01' from dual); > a1 a2 > 1 - 01 2 - 01 > @@ -539,7 +539,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using temporary; Using filesort > 2 DEPENDENT SUBQUERY columns unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` group by <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`a1`) in columns on PRIMARY where trigcond((<cache>(`test`.`t1`.`a1`) = `test`.`columns`.`col`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` group by <in_optimizer>(`test`.`t1`.`a1`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`a1`) in columns on PRIMARY where trigcond((<cache>(`test`.`t1`.`a1`) = `test`.`columns`.`col`))))) > select * from t1 group by (a1 in (select col from columns)); > a1 a2 > 1 - 00 2 - 00 > @@ -596,7 +596,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select `test`.`t2_16`.`b1` from `test`.`t2_16` where ((`test`.`t2_16`.`b1` > '0') and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select `test`.`t2_16`.`b1` from `test`.`t2_16` where ((`test`.`t2_16`.`b1` > '0') and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`)))) > select left(a1,7), left(a2,7) > from t1_16 > where a1 in (select b1 from t2_16 where b1 > '0'); > @@ -610,7 +610,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a2`,`test`.`t1_16`.`a1`>(<in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` where ((`test`.`t2_16`.`b1` > '0') and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` where ((`test`.`t2_16`.`b1` > '0') and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`)))) > select left(a1,7), left(a2,7) > from t1_16 > where (a1,a2) in (select b1, b2 from t2_16 where b1 > '0'); > @@ -624,7 +624,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select substr(`test`.`t2_16`.`b1`,1,16) from `test`.`t2_16` where (`test`.`t2_16`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`substring(b1,1,16)`)))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select substr(`test`.`t2_16`.`b1`,1,16) from `test`.`t2_16` where (`test`.`t2_16`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`substring(b1,1,16)`))))) > select left(a1,7), left(a2,7) > from t1_16 > where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0'); > @@ -638,7 +638,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` having (<cache>(`test`.`t1_16`.`a1`) = <ref_null_helper>(group_concat(`test`.`t2_16`.`b1` separator ',')))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` having (<cache>(`test`.`t1_16`.`a1`) = <ref_null_helper>(group_concat(`test`.`t2_16`.`b1` separator ','))))) > select left(a1,7), left(a2,7) > from t1_16 > where a1 in (select group_concat(b1) from t2_16 group by b2); > @@ -653,7 +653,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_16 > where a1 in (select group_concat(b1) from t2_16 group by b2); > @@ -675,7 +675,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join) > 4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><concat(`test`.`t1`.`a1`,'x')>(<in_optimizer>(concat(`test`.`t1`.`a1`,'x'),<exists>(select left(`test`.`t1_16`.`a1`,8) from `test`.`t1_16` where (<expr_cache><`test`.`t1_16`.`a2`,`test`.`t1_16`.`a1`>(<in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` join `test`.`t2` where ((`test`.`t2`.`b2` = substr(`test`.`t2_16`.`b2`,1,6)) and <expr_cache><`test`.`t2`.`b1`>(<in_optimizer>(`test`.`t2`.`b1`,`test`.`t2`.`b1` in ( <materialize> (select `test`.`t3`.`c1` from `test`.`t3` where (`test`.`t3`.`c2` > '0') ), <primary_index_lookup>(`test`.`t2`.`b1` in <temporary table> on distinct_key where ((`test`.`t2`.`b1` = `<subquery4>`.`c1`)))))) and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`))))) and (<cache>(concat(`test`.`t1`.`a1`,'x')) = left(`test`.`t1_16`.`a1`,8)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>(concat(`test`.`t1`.`a1`,'x'),<exists>(select left(`test`.`t1_16`.`a1`,8) from `test`.`t1_16` where (<in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` join `test`.`t2` where ((`test`.`t2`.`b2` = substr(`test`.`t2_16`.`b2`,1,6)) and <in_optimizer>(`test`.`t2`.`b1`,`test`.`t2`.`b1` in ( <materialize> (select `test`.`t3`.`c1` from `test`.`t3` where (`test`.`t3`.`c2` > '0') ), <primary_index_lookup>(`test`.`t2`.`b1` in <temporary table> on distinct_key where ((`test`.`t2`.`b1` = `<subquery4>`.`c1`))))) and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`)))) and (<cache>(concat(`test`.`t1`.`a1`,'x')) = left(`test`.`t1_16`.`a1`,8))))) > drop table t1_16, t2_16, t3_16; > set @blob_len = 512; > set @suffix_len = @blob_len - @prefix_len; > @@ -709,7 +709,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,<exists>(select `test`.`t2_512`.`b1` from `test`.`t2_512` where ((`test`.`t2_512`.`b1` > '0') and (<cache>(`test`.`t1_512`.`a1`) = `test`.`t2_512`.`b1`))))) > +Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <in_optimizer>(`test`.`t1_512`.`a1`,<exists>(select `test`.`t2_512`.`b1` from `test`.`t2_512` where ((`test`.`t2_512`.`b1` > '0') and (<cache>(`test`.`t1_512`.`a1`) = `test`.`t2_512`.`b1`)))) > select left(a1,7), left(a2,7) > from t1_512 > where a1 in (select b1 from t2_512 where b1 > '0'); > @@ -723,7 +723,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a2`,`test`.`t1_512`.`a1`>(<in_optimizer>((`test`.`t1_512`.`a1`,`test`.`t1_512`.`a2`),<exists>(select `test`.`t2_512`.`b1`,`test`.`t2_512`.`b2` from `test`.`t2_512` where ((`test`.`t2_512`.`b1` > '0') and (<cache>(`test`.`t1_512`.`a1`) = `test`.`t2_512`.`b1`) and (<cache>(`test`.`t1_512`.`a2`) = `test`.`t2_512`.`b2`))))) > +Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <in_optimizer>((`test`.`t1_512`.`a1`,`test`.`t1_512`.`a2`),<exists>(select `test`.`t2_512`.`b1`,`test`.`t2_512`.`b2` from `test`.`t2_512` where ((`test`.`t2_512`.`b1` > '0') and (<cache>(`test`.`t1_512`.`a1`) = `test`.`t2_512`.`b1`) and (<cache>(`test`.`t1_512`.`a2`) = `test`.`t2_512`.`b2`)))) > select left(a1,7), left(a2,7) > from t1_512 > where (a1,a2) in (select b1, b2 from t2_512 where b1 > '0'); > @@ -737,7 +737,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select substr(`test`.`t2_512`.`b1`,1,512) from `test`.`t2_512` where (`test`.`t2_512`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`substring(b1,1,512)`)))))) > +Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select substr(`test`.`t2_512`.`b1`,1,512) from `test`.`t2_512` where (`test`.`t2_512`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`substring(b1,1,512)`))))) > select left(a1,7), left(a2,7) > from t1_512 > where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0'); > @@ -751,7 +751,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_512 > where a1 in (select group_concat(b1) from t2_512 group by b2); > @@ -764,7 +764,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_512 > where a1 in (select group_concat(b1) from t2_512 group by b2); > @@ -802,7 +802,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,<exists>(select `test`.`t2_1024`.`b1` from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = `test`.`t2_1024`.`b1`))))) > +Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <in_optimizer>(`test`.`t1_1024`.`a1`,<exists>(select `test`.`t2_1024`.`b1` from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = `test`.`t2_1024`.`b1`)))) > select left(a1,7), left(a2,7) > from t1_1024 > where a1 in (select b1 from t2_1024 where b1 > '0'); > @@ -816,7 +816,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a2`,`test`.`t1_1024`.`a1`>(<in_optimizer>((`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a2`),<exists>(select `test`.`t2_1024`.`b1`,`test`.`t2_1024`.`b2` from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = `test`.`t2_1024`.`b1`) and (<cache>(`test`.`t1_1024`.`a2`) = `test`.`t2_1024`.`b2`))))) > +Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <in_optimizer>((`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a2`),<exists>(select `test`.`t2_1024`.`b1`,`test`.`t2_1024`.`b2` from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = `test`.`t2_1024`.`b1`) and (<cache>(`test`.`t1_1024`.`a2`) = `test`.`t2_1024`.`b2`)))) > select left(a1,7), left(a2,7) > from t1_1024 > where (a1,a2) in (select b1, b2 from t2_1024 where b1 > '0'); > @@ -830,7 +830,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,<exists>(select substr(`test`.`t2_1024`.`b1`,1,1024) from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = substr(`test`.`t2_1024`.`b1`,1,1024)))))) > +Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <in_optimizer>(`test`.`t1_1024`.`a1`,<exists>(select substr(`test`.`t2_1024`.`b1`,1,1024) from `test`.`t2_1024` where ((`test`.`t2_1024`.`b1` > '0') and (<cache>(`test`.`t1_1024`.`a1`) = substr(`test`.`t2_1024`.`b1`,1,1024))))) > select left(a1,7), left(a2,7) > from t1_1024 > where a1 in (select substring(b1,1,1024) from t2_1024 where b1 > '0'); > @@ -844,7 +844,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_1024 > where a1 in (select group_concat(b1) from t2_1024 group by b2); > @@ -857,7 +857,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_1024 > where a1 in (select group_concat(b1) from t2_1024 group by b2); > @@ -895,7 +895,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,<exists>(select `test`.`t2_1025`.`b1` from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = `test`.`t2_1025`.`b1`))))) > +Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <in_optimizer>(`test`.`t1_1025`.`a1`,<exists>(select `test`.`t2_1025`.`b1` from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = `test`.`t2_1025`.`b1`)))) > select left(a1,7), left(a2,7) > from t1_1025 > where a1 in (select b1 from t2_1025 where b1 > '0'); > @@ -909,7 +909,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a2`,`test`.`t1_1025`.`a1`>(<in_optimizer>((`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a2`),<exists>(select `test`.`t2_1025`.`b1`,`test`.`t2_1025`.`b2` from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = `test`.`t2_1025`.`b1`) and (<cache>(`test`.`t1_1025`.`a2`) = `test`.`t2_1025`.`b2`))))) > +Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <in_optimizer>((`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a2`),<exists>(select `test`.`t2_1025`.`b1`,`test`.`t2_1025`.`b2` from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = `test`.`t2_1025`.`b1`) and (<cache>(`test`.`t1_1025`.`a2`) = `test`.`t2_1025`.`b2`)))) > select left(a1,7), left(a2,7) > from t1_1025 > where (a1,a2) in (select b1, b2 from t2_1025 where b1 > '0'); > @@ -923,7 +923,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,<exists>(select substr(`test`.`t2_1025`.`b1`,1,1025) from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = substr(`test`.`t2_1025`.`b1`,1,1025)))))) > +Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <in_optimizer>(`test`.`t1_1025`.`a1`,<exists>(select substr(`test`.`t2_1025`.`b1`,1,1025) from `test`.`t2_1025` where ((`test`.`t2_1025`.`b1` > '0') and (<cache>(`test`.`t1_1025`.`a1`) = substr(`test`.`t2_1025`.`b1`,1,1025))))) > select left(a1,7), left(a2,7) > from t1_1025 > where a1 in (select substring(b1,1,1025) from t2_1025 where b1 > '0'); > @@ -937,7 +937,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_1025 > where a1 in (select group_concat(b1) from t2_1025 group by b2); > @@ -950,7 +950,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) > +Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`))))) > select left(a1,7), left(a2,7) > from t1_1025 > where a1 in (select group_concat(b1) from t2_1025 group by b2); > @@ -971,7 +971,7 @@ id select_type table type possible_keys > 1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00 Using where > 2 SUBQUERY t2bit ALL NULL NULL NULL NULL 3 100.00 > Warnings: > -Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` where <expr_cache><`test`.`t1bit`.`a2`,`test`.`t1bit`.`a1`>(<in_optimizer>((`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`),(`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`) in ( <materialize> (select `test`.`t2bit`.`b1`,`test`.`t2bit`.`b2` from `test`.`t2bit` ), <primary_index_lookup>(`test`.`t1bit`.`a1` in <temporary table> on distinct_key where ((`test`.`t1bit`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1bit`.`a2` = `<subquery2>`.`b2`)))))) > +Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` where <in_optimizer>((`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`),(`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`) in ( <materialize> (select `test`.`t2bit`.`b1`,`test`.`t2bit`.`b2` from `test`.`t2bit` ), <primary_index_lookup>(`test`.`t1bit`.`a1` in <temporary table> on distinct_key where ((`test`.`t1bit`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1bit`.`a2` = `<subquery2>`.`b2`))))) > select bin(a1), bin(a2) > from t1bit > where (a1, a2) in (select b1, b2 from t2bit); > @@ -994,7 +994,7 @@ id select_type table type possible_keys > 1 PRIMARY t1bb ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2bb ALL NULL NULL NULL NULL 3 100.00 Using where > Warnings: > -Note 1003 select conv(`test`.`t1bb`.`a1`,10,2) AS `bin(a1)`,`test`.`t1bb`.`a2` AS `a2` from `test`.`t1bb` where <expr_cache><`test`.`t1bb`.`a2`,`test`.`t1bb`.`a1`>(<in_optimizer>((`test`.`t1bb`.`a1`,`test`.`t1bb`.`a2`),<exists>(select `test`.`t2bb`.`b1`,`test`.`t2bb`.`b2` from `test`.`t2bb` where ((<cache>(`test`.`t1bb`.`a1`) = `test`.`t2bb`.`b1`) and (<cache>(`test`.`t1bb`.`a2`) = `test`.`t2bb`.`b2`))))) > +Note 1003 select conv(`test`.`t1bb`.`a1`,10,2) AS `bin(a1)`,`test`.`t1bb`.`a2` AS `a2` from `test`.`t1bb` where <in_optimizer>((`test`.`t1bb`.`a1`,`test`.`t1bb`.`a2`),<exists>(select `test`.`t2bb`.`b1`,`test`.`t2bb`.`b2` from `test`.`t2bb` where ((<cache>(`test`.`t1bb`.`a1`) = `test`.`t2bb`.`b1`) and (<cache>(`test`.`t1bb`.`a2`) = `test`.`t2bb`.`b2`)))) > select bin(a1), a2 > from t1bb > where (a1, a2) in (select b1, b2 from t2bb); > @@ -1042,7 +1042,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 where a in (select c from t2 where d >= 20); > a > 2 > @@ -1056,7 +1056,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 where a in (select c from t2 where d >= 20); > a > 2 > @@ -1070,7 +1070,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 where a in (select c from t2 where d >= 20); > a > 2 > @@ -1083,7 +1083,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 group by a having a in (select c from t2 where d >= 20); > a > 2 > @@ -1095,7 +1095,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 group by a having a in (select c from t2 where d >= 20); > a > 2 > @@ -1109,7 +1109,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`,max(`test`.`t1`.`b`)>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<expr_cache><`test`.`t2`.`d`,max(`test`.`t1`.`b`)>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where (max(`test`.`t1`.`b`) = `test`.`t3`.`e`) having (<cache>(`test`.`t2`.`d`) >= <ref_null_helper>(`test`.`t3`.`e`)))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where (max(`test`.`t1`.`b`) = `test`.`t3`.`e`) having (<cache>(`test`.`t2`.`d`) >= <ref_null_helper>(`test`.`t3`.`e`))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`)))) > select a from t1 group by a > having a in (select c from t2 where d >= some(select e from t3 where max(b)=e)); > a > @@ -1124,7 +1124,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`)))) > select a from t1 > where a in (select c from t2 where d >= some(select e from t3 where b=e)); > a > > === modified file 'mysql-test/r/subselect_mat_cost_bugs.result' > --- a/mysql-test/r/subselect_mat_cost_bugs.result 2011-06-29 02:56:30 +0000 > +++ b/mysql-test/r/subselect_mat_cost_bugs.result 2011-07-14 09:11:11 +0000 > @@ -94,7 +94,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1a ref c2 c2 5 test.t1b.pk 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where <expr_cache><`test`.`t1`.`c1`,`test`.`t1`.`pk`>(<in_optimizer>(`test`.`t1`.`c1`,<exists>(select `test`.`t1a`.`c1` from `test`.`t1b` join `test`.`t2` left join `test`.`t1a` on((2 and (`test`.`t1a`.`c2` = `test`.`t1b`.`pk`))) where (`test`.`t1`.`pk` and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`) and (`test`.`t1b`.`c4` = `test`.`t2`.`c3`))))) > +Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`c1`,<exists>(select `test`.`t1a`.`c1` from `test`.`t1b` join `test`.`t2` left join `test`.`t1a` on((2 and (`test`.`t1a`.`c2` = `test`.`t1b`.`pk`))) where (`test`.`t1`.`pk` and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`) and (`test`.`t1b`.`c4` = `test`.`t2`.`c3`)))) > SELECT pk > FROM t1 > WHERE c1 IN > > === modified file 'mysql-test/r/subselect_no_mat.result' > --- a/mysql-test/r/subselect_no_mat.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect_no_mat.result 2011-07-14 09:11:11 +0000 > @@ -60,7 +60,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > 1 > 1 > @@ -323,7 +323,7 @@ NULL UNION RESULT <union2,3> ALL NULL NU > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t2`.`a`>((select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +Note 1003 select (select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > ERROR 21000: Subquery returns more than 1 row > create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > @@ -341,7 +341,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > Warnings: > Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > ERROR 23000: Column 'a' in field list is ambiguous > drop table t1,t2,t3; > @@ -755,7 +755,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > id > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > @@ -903,7 +903,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > CREATE TABLE t3 (a int(11) default '0'); > INSERT INTO t3 VALUES (1),(2),(3); > SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > @@ -918,7 +918,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > drop table t1,t2,t3; > create table t1 (a float); > select 10.5 IN (SELECT * from t1 LIMIT 1); > @@ -1479,25 +1479,25 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > drop table t1,t2; > create table t2 (a int, b int); > create table t3 (a int); > @@ -1752,14 +1752,14 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > @@ -2295,7 +2295,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > drop table t1; > CREATE TABLE t1 (t1_a int); > INSERT INTO t1 VALUES (1); > @@ -2836,7 +2836,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > @@ -2848,7 +2848,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > DROP TABLE t1,t2; > CREATE TABLE t1 (a char(5), b char(5)); > INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > @@ -4331,13 +4331,13 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > DROP TABLE t1; > # > # Bug#45061: Incorrectly market field caused wrong result. > > === modified file 'mysql-test/r/subselect_no_opts.result' > --- a/mysql-test/r/subselect_no_opts.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect_no_opts.result 2011-07-14 09:11:11 +0000 > @@ -56,7 +56,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > 1 > 1 > @@ -319,7 +319,7 @@ NULL UNION RESULT <union2,3> ALL NULL NU > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t2`.`a`>((select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +Note 1003 select (select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > ERROR 21000: Subquery returns more than 1 row > create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > @@ -337,7 +337,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > Warnings: > Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > ERROR 23000: Column 'a' in field list is ambiguous > drop table t1,t2,t3; > @@ -751,7 +751,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > id > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > @@ -899,7 +899,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > CREATE TABLE t3 (a int(11) default '0'); > INSERT INTO t3 VALUES (1),(2),(3); > SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > @@ -914,7 +914,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > drop table t1,t2,t3; > create table t1 (a float); > select 10.5 IN (SELECT * from t1 LIMIT 1); > @@ -1304,7 +1304,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1314,7 +1314,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1325,7 +1325,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 func 1 100.00 Using where > 2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY PRIMARY 4 test.t1.b 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > drop table t1, t2, t3; > create table t1 (a int, b int, index a (a,b)); > create table t2 (a int, index a (a)); > @@ -1347,7 +1347,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1357,7 +1357,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1368,7 +1368,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using index > 2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > insert into t1 values (3,31); > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > @@ -1384,7 +1384,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > drop table t0, t1, t2, t3; > create table t1 (a int, b int); > create table t2 (a int, b int); > @@ -1475,25 +1475,25 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > drop table t1,t2; > create table t2 (a int, b int); > create table t3 (a int); > @@ -1748,14 +1748,14 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > @@ -2291,7 +2291,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > drop table t1; > CREATE TABLE t1 (t1_a int); > INSERT INTO t1 VALUES (1); > @@ -2832,19 +2832,19 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 Using where > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`))))) > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`)))) > explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > DROP TABLE t1,t2; > CREATE TABLE t1 (a char(5), b char(5)); > INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > @@ -4327,13 +4327,13 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > DROP TABLE t1; > # > # Bug#45061: Incorrectly market field caused wrong result. > > === added file 'mysql-test/r/subselect_no_scache.result' > --- a/mysql-test/r/subselect_no_scache.result 1970-01-01 00:00:00 +0000 > +++ b/mysql-test/r/subselect_no_scache.result 2011-07-14 09:11:11 +0000 > @@ -0,0 +1,5139 @@ > +select @@optimizer_switch like '%subquery_cache=on%'; > +@@optimizer_switch like '%subquery_cache=on%' > +0 > +set optimizer_switch='subquery_cache=off'; > +drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12; > +drop view if exists v2; > +set @subselect_tmp=@@optimizer_switch; > +set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test, > +"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off"); > +set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; > +select (select 2); > +(select 2) > +2 > +explain extended select (select 2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select 2 AS `(select 2)` > +SELECT (SELECT 1) UNION SELECT (SELECT 2); > +(SELECT 1) > +1 > +2 > +explain extended SELECT (SELECT 1) UNION SELECT (SELECT 2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1249 Select 4 was reduced during optimization > +Note 1003 select 1 AS `(SELECT 1)` union select 2 AS `(SELECT 2)` > +SELECT (SELECT (SELECT 0 UNION SELECT 0)); > +(SELECT (SELECT 0 UNION SELECT 0)) > +0 > +explain extended SELECT (SELECT (SELECT 0 UNION SELECT 0)); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +4 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select (select 0 union select 0) AS `(SELECT (SELECT 0 UNION SELECT 0))` > +SELECT (SELECT 1 FROM (SELECT 1) as b HAVING a=1) as a; > +ERROR 42S22: Reference 'a' not supported (forward reference in item list) > +SELECT (SELECT 1 FROM (SELECT 1) as b HAVING b=1) as a,(SELECT 1 FROM (SELECT 1) as c HAVING a=1) as b; > +ERROR 42S22: Reference 'b' not supported (forward reference in item list) > +SELECT (SELECT 1),MAX(1) FROM (SELECT 1) as a; > +(SELECT 1) MAX(1) > +1 1 > +SELECT (SELECT a) as a; > +ERROR 42S22: Reference 'a' not supported (forward reference in item list) > +EXPLAIN EXTENDED SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00 > +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +Warnings: > +Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > +Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > +SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > +1 > +1 > +SELECT (SELECT 1), a; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT 1 as a FROM (SELECT 1) as b HAVING (SELECT a)=1; > +a > +1 > +SELECT 1 FROM (SELECT (SELECT a) b) c; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT * FROM (SELECT 1 as id) b WHERE id IN (SELECT * FROM (SELECT 1 as id) c ORDER BY id); > +id > +1 > +SELECT * FROM (SELECT 1) a WHERE 1 IN (SELECT 1,1); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT 1 IN (SELECT 1); > +1 IN (SELECT 1) > +1 > +SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); > +1 > +1 > +select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); > +ERROR HY000: Incorrect usage of PROCEDURE and subquery > +SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); > +ERROR HY000: Incorrect parameters to procedure 'ANALYSE' > +SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT (SELECT 1,2,3) = ROW(1,2,3); > +(SELECT 1,2,3) = ROW(1,2,3) > +1 > +SELECT (SELECT 1,2,3) = ROW(1,2,1); > +(SELECT 1,2,3) = ROW(1,2,1) > +0 > +SELECT (SELECT 1,2,3) < ROW(1,2,1); > +(SELECT 1,2,3) < ROW(1,2,1) > +0 > +SELECT (SELECT 1,2,3) > ROW(1,2,1); > +(SELECT 1,2,3) > ROW(1,2,1) > +1 > +SELECT (SELECT 1,2,3) = ROW(1,2,NULL); > +(SELECT 1,2,3) = ROW(1,2,NULL) > +NULL > +SELECT ROW(1,2,3) = (SELECT 1,2,3); > +ROW(1,2,3) = (SELECT 1,2,3) > +1 > +SELECT ROW(1,2,3) = (SELECT 1,2,1); > +ROW(1,2,3) = (SELECT 1,2,1) > +0 > +SELECT ROW(1,2,3) < (SELECT 1,2,1); > +ROW(1,2,3) < (SELECT 1,2,1) > +0 > +SELECT ROW(1,2,3) > (SELECT 1,2,1); > +ROW(1,2,3) > (SELECT 1,2,1) > +1 > +SELECT ROW(1,2,3) = (SELECT 1,2,NULL); > +ROW(1,2,3) = (SELECT 1,2,NULL) > +NULL > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a'); > +(SELECT 1.5,2,'a') = ROW(1.5,2,'a') > +1 > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b'); > +(SELECT 1.5,2,'a') = ROW(1.5,2,'b') > +0 > +SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b'); > +(SELECT 1.5,2,'a') = ROW('1.5b',2,'b') > +0 > +Warnings: > +Warning 1292 Truncated incorrect DOUBLE value: '1.5b' > +SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a'); > +(SELECT 'b',2,'a') = ROW(1.5,2,'a') > +0 > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a'); > +(SELECT 1.5,2,'a') = ROW(1.5,'2','a') > +1 > +SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a'); > +(SELECT 1.5,'c','a') = ROW(1.5,2,'a') > +0 > +SELECT (SELECT * FROM (SELECT 'test' a,'test' b) a); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT 1 as a,(SELECT a+a) b,(SELECT b); > +a b (SELECT b) > +1 2 2 > +create table t1 (a int); > +create table t2 (a int, b int); > +create table t3 (a int); > +create table t4 (a int not null, b int not null); > +insert into t1 values (2); > +insert into t2 values (1,7),(2,7); > +insert into t4 values (4,8),(3,8),(5,9); > +select (select a from t1 where t1.a = a1) as a2, (select b from t2 where t2.b=a2) as a1; > +ERROR 42S22: Reference 'a1' not supported (forward reference in item list) > +select (select a from t1 where t1.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a) a > +NULL 1 > +2 2 > +select (select a from t1 where t1.a=t2.b), a from t2; > +(select a from t1 where t1.a=t2.b) a > +NULL 1 > +NULL 2 > +select (select a from t1), a, (select 1 union select 2 limit 1) from t2; > +(select a from t1) a (select 1 union select 2 limit 1) > +2 1 1 > +2 2 1 > +select (select a from t3), a from t2; > +(select a from t3) a > +NULL 1 > +NULL 2 > +select * from t2 where t2.a=(select a from t1); > +a b > +2 7 > +insert into t3 values (6),(7),(3); > +select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1); > +a b > +1 7 > +2 7 > +(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 order by a limit 2) limit 3; > +a b > +1 7 > +2 7 > +3 8 > +(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a); > +a b > +1 7 > +2 7 > +4 8 > +3 8 > +explain extended (select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > +2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using filesort > +3 UNION t4 ALL NULL NULL NULL NULL 3 100.00 Using where > +4 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 > +NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = (select `test`.`t3`.`a` from `test`.`t3` order by 1 desc limit 1))) union (select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t4` where (`test`.`t4`.`b` = (select (max(`test`.`t2`.`a`) * 4) from `test`.`t2`)) order by `a`) > +select (select a from t3 where a<t2.a*4 order by 1 desc limit 1), a from t2; > +(select a from t3 where a<t2.a*4 order by 1 desc limit 1) a > +3 1 > +7 2 > +select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from > +(select * from t2 where a>1) as tt; > +(select t3.a from t3 where a<8 order by 1 desc limit 1) a > +7 2 > +explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from > +(select * from t2 where a>1) as tt; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > +2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort > +Warnings: > +Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`test`.`t2`.`a` AS `a` from `test`.`t2` where (`test`.`t2`.`a` > 1) > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1); > +a > +2 > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a > t1.a) order by 1 desc limit 1); > +a > +2 > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a < t1.a) order by 1 desc limit 1); > +a > +select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4; > +b (select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) > +8 7.5000 > +8 4.5000 > +9 7.5000 > +explain extended select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t4 ALL NULL NULL NULL NULL 3 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 > +3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +Warnings: > +Note 1276 Field or reference 'test.t4.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select `test`.`t4`.`b` AS `b`,(select avg((`test`.`t2`.`a` + (select min(`test`.`t3`.`a`) from `test`.`t3` where (`test`.`t3`.`a` >= `test`.`t4`.`a`)))) from `test`.`t2`) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4` > +select * from t3 where exists (select * from t2 where t2.b=t3.a); > +a > +7 > +select * from t3 where not exists (select * from t2 where t2.b=t3.a); > +a > +6 > +3 > +select * from t3 where a in (select b from t2); > +a > +7 > +select * from t3 where a not in (select b from t2); > +a > +6 > +3 > +select * from t3 where a = some (select b from t2); > +a > +7 > +select * from t3 where a <> any (select b from t2); > +a > +6 > +3 > +select * from t3 where a = all (select b from t2); > +a > +7 > +select * from t3 where a <> all (select b from t2); > +a > +6 > +3 > +insert into t2 values (100, 5); > +select * from t3 where a < any (select b from t2); > +a > +6 > +3 > +select * from t3 where a < all (select b from t2); > +a > +3 > +select * from t3 where a >= any (select b from t2); > +a > +6 > +7 > +explain extended select * from t3 where a >= any (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))) > +select * from t3 where a >= all (select b from t2); > +a > +7 > +delete from t2 where a=100; > +select * from t3 where a in (select a,b from t2); > +ERROR 21000: Operand should contain 1 column(s) > +select * from t3 where a in (select * from t2); > +ERROR 21000: Operand should contain 1 column(s) > +insert into t4 values (12,7),(1,7),(10,9),(9,6),(7,6),(3,9),(1,10); > +select b,max(a) as ma from t4 group by b having b < (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +insert into t2 values (2,10); > +select b,max(a) as ma from t4 group by b having ma < (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +10 1 > +delete from t2 where a=2 and b=10; > +select b,max(a) as ma from t4 group by b having b >= (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +7 12 > +create table t5 (a int); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +insert into t5 values (5); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +insert into t5 values (2); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +explain extended select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > +3 DEPENDENT UNION t5 ALL NULL NULL NULL NULL 2 100.00 Using where > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > +Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select (select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > +ERROR 21000: Subquery returns more than 1 row > +create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > +create table t7( uq int primary key, name char(25)); > +insert into t7 values(1,"Oblastnaia bolnitsa"),(2,"Bolnitsa Krasnogo Kresta"); > +insert into t6 values (1,1),(1,2),(2,2),(1,3); > +select * from t6 where exists (select * from t7 where uq = clinic_uq); > +patient_uq clinic_uq > +1 1 > +1 2 > +2 2 > +explain extended select * from t6 where exists (select * from t7 where uq = clinic_uq); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t6 ALL NULL NULL NULL NULL 4 100.00 Using where > +2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > +Warnings: > +Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > +select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > +ERROR 23000: Column 'a' in field list is ambiguous > +drop table t1,t2,t3; > +CREATE TABLE t3 (a varchar(20),b char(1) NOT NULL default '0'); > +INSERT INTO t3 VALUES ('W','a'),('A','c'),('J','b'); > +CREATE TABLE t2 (a varchar(20),b int NOT NULL default '0'); > +INSERT INTO t2 VALUES ('W','1'),('A','3'),('J','2'); > +CREATE TABLE t1 (a varchar(20),b date NOT NULL default '0000-00-00'); > +INSERT INTO t1 VALUES ('W','1732-02-22'),('A','1735-10-30'),('J','1743-04-13'); > +SELECT * FROM t1 WHERE b = (SELECT MIN(b) FROM t1); > +a b > +W 1732-02-22 > +SELECT * FROM t2 WHERE b = (SELECT MIN(b) FROM t2); > +a b > +W 1 > +SELECT * FROM t3 WHERE b = (SELECT MIN(b) FROM t3); > +a b > +W a > +CREATE TABLE `t8` ( > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +`email` varchar(60) character set latin1 NOT NULL default '', > +PRIMARY KEY (`pseudo`), > +UNIQUE KEY `email` (`email`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t8 (pseudo,email) VALUES ('joce','test'); > +INSERT INTO t8 (pseudo,email) VALUES ('joce1','test1'); > +INSERT INTO t8 (pseudo,email) VALUES ('2joce1','2test1'); > +EXPLAIN EXTENDED SELECT pseudo,(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce')) FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +4 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +2 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 > +3 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +Warnings: > +Note 1003 select 'joce' AS `pseudo`,(select 'test' from `test`.`t8` where ('joce' = (select 'joce' from `test`.`t8` where 1))) AS `(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'))` from `test`.`t8` where ('joce' = (select 'joce' from `test`.`t8` where 1)) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo,email FROM > +t8 WHERE pseudo='joce'); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT * FROM t8 WHERE > +pseudo='joce'); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'); > +pseudo > +joce > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo LIKE '%joce%'); > +ERROR 21000: Subquery returns more than 1 row > +drop table if exists t1,t2,t3,t4,t5,t6,t7,t8; > +CREATE TABLE `t1` ( > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (topic,date,pseudo) VALUES > +('43506','2002-10-02','joce'),('40143','2002-08-03','joce'); > +EXPLAIN EXTENDED SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE t1 index NULL PRIMARY 43 NULL 2 100.00 Using where; Using index > +Warnings: > +Note 1003 select distinct `test`.`t1`.`date` AS `date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03') > +EXPLAIN EXTENDED SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 SUBQUERY t1 index NULL PRIMARY 43 NULL 2 100.00 Using where; Using index > +Warnings: > +Note 1003 select (select distinct `test`.`t1`.`date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03')) AS `(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03')` > +SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'; > +date > +2002-08-03 > +SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'); > +(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03') > +2002-08-03 > +SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1) UNION ALL SELECT 1; > +1 > +1 > +1 > +1 > +SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1) UNION SELECT 1; > +ERROR 21000: Subquery returns more than 1 row > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL topic 3 NULL 2 100.00 Using index > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1)) > +drop table t1; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM ROW_FORMAT=FIXED; > +INSERT INTO t1 (numeropost,maxnumrep) VALUES (40143,1),(43506,2); > +CREATE TABLE `t2` ( > +`mot` varchar(30) NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`) > +) ENGINE=MyISAM ROW_FORMAT=DYNAMIC; > +INSERT INTO t2 (mot,topic,date,pseudo) VALUES ('joce','40143','2002-10-22','joce'), ('joce','43506','2002-10-22','joce'); > +select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1); > +a > +40143 > +SELECT numeropost,maxnumrep FROM t1 WHERE exists (SELECT 1 FROM t2 WHERE (mot='joce') AND date >= '2002-10-21' AND t1.numeropost = t2.topic) ORDER BY maxnumrep DESC LIMIT 0, 20; > +numeropost maxnumrep > +43506 2 > +40143 1 > +SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) b; > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT 1 IN (SELECT 1 FROM t2 HAVING a); > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +SELECT * from t2 where topic IN (SELECT SUM(topic) FROM t1); > +mot topic date pseudo > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1); > +mot topic date pseudo > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2; > +mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) > +joce 40143 2002-10-22 joce 1 > +joce 43506 2002-10-22 joce 1 > +SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2); > +mot topic date pseudo > +SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2; > +mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) > +joce 40143 2002-10-22 joce 1 > +joce 43506 2002-10-22 joce 0 > +drop table t1,t2; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM ROW_FORMAT=FIXED; > +INSERT INTO t1 (numeropost,maxnumrep) VALUES (1,0),(2,1); > +select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1); > +ERROR 21000: Subquery returns more than 1 row > +select numeropost as a FROM t1 ORDER BY (SELECT 1 FROM t1 HAVING a=1); > +ERROR 21000: Subquery returns more than 1 row > +show warnings; > +Level Code Message > +Error 1242 Subquery returns more than 1 row > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1),(2),(3); > +(select * from t1) union (select * from t1) order by (select a from t1 limit 1); > +a > +1 > +2 > +3 > +drop table t1; > +CREATE TABLE t1 (field char(1) NOT NULL DEFAULT 'b'); > +INSERT INTO t1 VALUES (); > +SELECT field FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1 FROM (SELECT 1) a HAVING field='b'); > +ERROR 21000: Subquery returns more than 1 row > +drop table t1; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL default '0', > +`numreponse` int(10) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) NOT NULL default '', > +PRIMARY KEY (`numeropost`,`numreponse`), > +UNIQUE KEY `numreponse` (`numreponse`), > +KEY `pseudo` (`pseudo`,`numeropost`) > +) ENGINE=MyISAM; > +SELECT (SELECT numeropost FROM t1 HAVING numreponse=a),numreponse FROM (SELECT * FROM t1) as a; > +ERROR 42S22: Reference 'numreponse' not supported (forward reference in item list) > +SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=a) FROM (SELECT * FROM t1) as a; > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=1) FROM (SELECT * FROM t1) as a; > +numreponse (SELECT numeropost FROM t1 HAVING numreponse=1) > +INSERT INTO t1 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test'); > +EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1'); > +ERROR 21000: Subquery returns more than 1 row > +EXPLAIN EXTENDED SELECT MAX(numreponse) FROM t1 WHERE numeropost='1'; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where multiple equal(1, `test`.`t1`.`numeropost`) > +EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 const PRIMARY,numreponse PRIMARY 7 const,const 1 100.00 Using index > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select 3 AS `numreponse` from `test`.`t1` where ((3 = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where multiple equal(1, `test`.`t1`.`numeropost`)))) > +drop table t1; > +CREATE TABLE t1 (a int(1)); > +INSERT INTO t1 VALUES (1); > +SELECT 1 FROM (SELECT a FROM t1) b HAVING (SELECT b.a)=1; > +1 > +1 > +drop table t1; > +create table t1 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t1 values (0, 10),(1, 11),(2, 12); > +insert into t2 values (1, 21),(2, 22),(3, 23); > +select * from t1; > +a b > +0 10 > +1 11 > +2 12 > +update t1 set b= (select b from t1); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +update t1 set b= (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +update t1 set b= (select b from t2 where t1.a = t2.a); > +select * from t1; > +a b > +0 NULL > +1 21 > +2 22 > +drop table t1, t2; > +create table t1 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t1 values (0, 10),(1, 11),(2, 12); > +insert into t2 values (1, 21),(2, 12),(3, 23); > +select * from t1; > +a b > +0 10 > +1 11 > +2 12 > +select * from t1 where b = (select b from t2 where t1.a = t2.a); > +a b > +2 12 > +delete from t1 where b in (select b from t1); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +delete from t1 where b = (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +delete from t1 where b = (select b from t2 where t1.a = t2.a); > +select * from t1; > +a b > +0 10 > +1 11 > +drop table t1, t2; > +create table t11 (a int NOT NULL, b int, primary key (a)); > +create table t12 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t11 values (0, 10),(1, 11),(2, 12); > +insert into t12 values (33, 10),(22, 11),(2, 12); > +insert into t2 values (1, 21),(2, 12),(3, 23); > +select * from t11; > +a b > +0 10 > +1 11 > +2 12 > +select * from t12; > +a b > +33 10 > +22 11 > +2 12 > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t12 where t11.a = t12.a); > +ERROR HY000: You can't specify target table 't12' for update in FROM clause > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2 where t11.a = t2.a); > +select * from t11; > +a b > +0 10 > +1 11 > +select * from t12; > +a b > +33 10 > +22 11 > +drop table t11, t12, t2; > +CREATE TABLE t1 (x int) ENGINE=MyISAM; > +create table t2 (a int) ENGINE=MyISAM; > +create table t3 (b int); > +insert into t2 values (1); > +insert into t3 values (1),(2); > +INSERT INTO t1 (x) VALUES ((SELECT x FROM t1)); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +INSERT INTO t1 (x) VALUES ((SELECT b FROM t3)); > +ERROR 21000: Subquery returns more than 1 row > +INSERT INTO t1 (x) VALUES ((SELECT a FROM t2)); > +select * from t1; > +x > +1 > +insert into t2 values (1); > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2)); > +select * from t1; > +x > +1 > +2 > +INSERT INTO t1 (x) select (SELECT SUM(a)+1 FROM t2) FROM t2; > +select * from t1; > +x > +1 > +2 > +3 > +3 > +INSERT INTO t1 (x) select (SELECT SUM(x)+2 FROM t1) FROM t2; > +select * from t1; > +x > +1 > +2 > +3 > +3 > +11 > +11 > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(x) FROM t2)); > +ERROR 42S22: Unknown column 'x' in 'field list' > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2)); > +select * from t1; > +x > +1 > +2 > +3 > +3 > +11 > +11 > +2 > +drop table t1, t2, t3; > +CREATE TABLE t1 (x int not null, y int, primary key (x)) ENGINE=MyISAM; > +create table t2 (a int); > +create table t3 (a int); > +insert into t2 values (1); > +insert into t3 values (1),(2); > +select * from t1; > +x y > +replace into t1 (x, y) VALUES ((SELECT x FROM t1), (SELECT a+1 FROM t2)); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +replace into t1 (x, y) VALUES ((SELECT a FROM t3), (SELECT a+1 FROM t2)); > +ERROR 21000: Subquery returns more than 1 row > +replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+1 FROM t2)); > +select * from t1; > +x y > +1 2 > +replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+2 FROM t2)); > +select * from t1; > +x y > +1 3 > +replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a FROM t2)); > +select * from t1; > +x y > +1 3 > +4 1 > +replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a+1 FROM t2)); > +select * from t1; > +x y > +1 3 > +4 2 > +replace LOW_PRIORITY into t1 (x, y) VALUES ((SELECT a+1 FROM t2), (SELECT a FROM t2)); > +select * from t1; > +x y > +1 3 > +4 2 > +2 1 > +drop table t1, t2, t3; > +SELECT * FROM (SELECT 1) b WHERE 1 IN (SELECT *); > +ERROR HY000: No tables used > +CREATE TABLE t2 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (1),(2); > +SELECT * FROM t2 WHERE id IN (SELECT 1); > +id > +1 > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ref id id 5 const 1 100.00 Using index > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = 1) > +SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3); > +id > +1 > +SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1)); > +id > +2 > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1)); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ref id id 5 const 1 100.00 Using index > +Warnings: > +Note 1249 Select 3 was reduced during optimization > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = (1 + 1)) > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index NULL id 5 NULL 2 100.00 Using where; Using index > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > +SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > +id > +SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > +id > +2 > +INSERT INTO t2 VALUES ((SELECT * FROM t2)); > +ERROR HY000: You can't specify target table 't2' for update in FROM clause > +INSERT INTO t2 VALUES ((SELECT id FROM t2)); > +ERROR HY000: You can't specify target table 't2' for update in FROM clause > +SELECT * FROM t2; > +id > +1 > +2 > +CREATE TABLE t1 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 values (1),(1); > +UPDATE t2 SET id=(SELECT * FROM t1); > +ERROR 21000: Subquery returns more than 1 row > +drop table t2, t1; > +create table t1 (a int); > +insert into t1 values (1),(2),(3); > +select 1 IN (SELECT * from t1); > +1 IN (SELECT * from t1) > +1 > +select 10 IN (SELECT * from t1); > +10 IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a=2; > +select 1 IN (SELECT * from t1); > +1 IN (SELECT * from t1) > +1 > +select 3 IN (SELECT * from t1); > +3 IN (SELECT * from t1) > +1 > +select 10 IN (SELECT * from t1); > +10 IN (SELECT * from t1) > +NULL > +select 1 > ALL (SELECT * from t1); > +1 > ALL (SELECT * from t1) > +0 > +select 10 > ALL (SELECT * from t1); > +10 > ALL (SELECT * from t1) > +NULL > +select 1 > ANY (SELECT * from t1); > +1 > ANY (SELECT * from t1) > +NULL > +select 10 > ANY (SELECT * from t1); > +10 > ANY (SELECT * from t1) > +1 > +drop table t1; > +create table t1 (a varchar(20)); > +insert into t1 values ('A'),('BC'),('DEF'); > +select 'A' IN (SELECT * from t1); > +'A' IN (SELECT * from t1) > +1 > +select 'XYZS' IN (SELECT * from t1); > +'XYZS' IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a='BC'; > +select 'A' IN (SELECT * from t1); > +'A' IN (SELECT * from t1) > +1 > +select 'DEF' IN (SELECT * from t1); > +'DEF' IN (SELECT * from t1) > +1 > +select 'XYZS' IN (SELECT * from t1); > +'XYZS' IN (SELECT * from t1) > +NULL > +select 'A' > ALL (SELECT * from t1); > +'A' > ALL (SELECT * from t1) > +0 > +select 'XYZS' > ALL (SELECT * from t1); > +'XYZS' > ALL (SELECT * from t1) > +NULL > +select 'A' > ANY (SELECT * from t1); > +'A' > ANY (SELECT * from t1) > +NULL > +select 'XYZS' > ANY (SELECT * from t1); > +'XYZS' > ANY (SELECT * from t1) > +1 > +drop table t1; > +create table t1 (a float); > +insert into t1 values (1.5),(2.5),(3.5); > +select 1.5 IN (SELECT * from t1); > +1.5 IN (SELECT * from t1) > +1 > +select 10.5 IN (SELECT * from t1); > +10.5 IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a=2.5; > +select 1.5 IN (SELECT * from t1); > +1.5 IN (SELECT * from t1) > +1 > +select 3.5 IN (SELECT * from t1); > +3.5 IN (SELECT * from t1) > +1 > +select 10.5 IN (SELECT * from t1); > +10.5 IN (SELECT * from t1) > +NULL > +select 1.5 > ALL (SELECT * from t1); > +1.5 > ALL (SELECT * from t1) > +0 > +select 10.5 > ALL (SELECT * from t1); > +10.5 > ALL (SELECT * from t1) > +NULL > +select 1.5 > ANY (SELECT * from t1); > +1.5 > ANY (SELECT * from t1) > +NULL > +select 10.5 > ANY (SELECT * from t1); > +10.5 > ANY (SELECT * from t1) > +1 > +explain extended select (select a+1) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select (`test`.`t1`.`a` + 1) AS `(select a+1)` from `test`.`t1` > +select (select a+1) from t1; > +(select a+1) > +2.5 > +NULL > +4.5 > +drop table t1; > +CREATE TABLE t1 (a int(11) NOT NULL default '0', PRIMARY KEY (a)); > +CREATE TABLE t2 (a int(11) default '0', INDEX (a)); > +INSERT INTO t1 VALUES (1),(2),(3),(4); > +INSERT INTO t2 VALUES (1),(2),(3); > +SELECT t1.a, t1.a in (select t2.a from t2) FROM t1; > +a t1.a in (select t2.a from t2) > +1 1 > +2 1 > +3 1 > +4 0 > +explain extended SELECT t1.a, t1.a in (select t2.a from t2) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +CREATE TABLE t3 (a int(11) default '0'); > +INSERT INTO t3 VALUES (1),(2),(3); > +SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > +a t1.a in (select t2.a from t2,t3 where t3.a=t2.a) > +1 1 > +2 1 > +3 1 > +4 0 > +explain extended SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > +2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > +2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +drop table t1,t2,t3; > +create table t1 (a float); > +select 10.5 IN (SELECT * from t1 LIMIT 1); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +select 10.5 IN (SELECT * from t1 LIMIT 1 UNION SELECT 1.5); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +drop table t1; > +create table t1 (a int, b int, c varchar(10)); > +create table t2 (a int); > +insert into t1 values (1,2,'a'),(2,3,'b'),(3,4,'c'); > +insert into t2 values (1),(2),(NULL); > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a') (select c from t1 where a=t2.a) > +1 1 a > +2 0 b > +NULL NULL NULL > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b') (select c from t1 where a=t2.a) > +1 0 a > +2 1 b > +NULL NULL NULL > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c') (select c from t1 where a=t2.a) > +1 0 a > +2 0 b > +NULL NULL NULL > +drop table t1,t2; > +create table t1 (a int, b real, c varchar(10)); > +insert into t1 values (1, 1, 'a'), (2,2,'b'), (NULL, 2, 'b'); > +select ROW(1, 1, 'a') IN (select a,b,c from t1); > +ROW(1, 1, 'a') IN (select a,b,c from t1) > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1); > +ROW(1, 2, 'a') IN (select a,b,c from t1) > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1); > +ROW(1, 1, 'a') IN (select b,a,c from t1) > +1 > +select ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null); > +ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null) > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null); > +ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null) > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null); > +ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null) > +1 > +select ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a'); > +ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a') > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a'); > +ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a') > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a'); > +ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a') > +1 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 limit 2); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1); > +do @a:=(SELECT a from t1); > +select @a; > +@a > +1 > +set @a:=2; > +set @a:=(SELECT a from t1); > +select @a; > +@a > +1 > +drop table t1; > +do (SELECT a from t1); > +ERROR 42S02: Table 'test.t1' doesn't exist > +set @a:=(SELECT a from t1); > +ERROR 42S02: Table 'test.t1' doesn't exist > +CREATE TABLE t1 (a int, KEY(a)); > +HANDLER t1 OPEN; > +HANDLER t1 READ a=((SELECT 1)); > +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT 1))' at line 1 > +HANDLER t1 CLOSE; > +drop table t1; > +create table t1 (a int); > +create table t2 (b int); > +insert into t1 values (1),(2); > +insert into t2 values (1); > +select a from t1 where a in (select a from t1 where a in (select b from t2)); > +a > +1 > +drop table t1, t2; > +create table t1 (a int, b int); > +create table t2 like t1; > +insert into t1 values (1,2),(1,3),(1,4),(1,5); > +insert into t2 values (1,2),(1,3); > +select * from t1 where row(a,b) in (select a,b from t2); > +a b > +1 2 > +1 3 > +drop table t1, t2; > +CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY (`i`)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1); > +UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i)); > +select * from t1; > +i > +2 > +drop table t1; > +CREATE TABLE t1 (a int(1)); > +EXPLAIN EXTENDED SELECT (SELECT RAND() FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select rand() from `test`.`t1`) AS `(SELECT RAND() FROM t1)` from `test`.`t1` > +EXPLAIN EXTENDED SELECT (SELECT ENCRYPT('test') FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select encrypt('test') from `test`.`t1`) AS `(SELECT ENCRYPT('test') FROM t1)` from `test`.`t1` > +EXPLAIN EXTENDED SELECT (SELECT BENCHMARK(1,1) FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select benchmark(1,1) from `test`.`t1`) AS `(SELECT BENCHMARK(1,1) FROM t1)` from `test`.`t1` > +drop table t1; > +CREATE TABLE `t1` ( > +`mot` varchar(30) character set latin1 NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`), > +KEY `pseudo` (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +CREATE TABLE `t2` ( > +`mot` varchar(30) character set latin1 NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`), > +KEY `pseudo` (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +CREATE TABLE `t3` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES ('joce','1','','joce'),('test','2','','test'); > +Warnings: > +Warning 1265 Data truncated for column 'date' at row 1 > +Warning 1265 Data truncated for column 'date' at row 2 > +INSERT INTO t2 VALUES ('joce','1','','joce'),('test','2','','test'); > +Warnings: > +Warning 1265 Data truncated for column 'date' at row 1 > +Warning 1265 Data truncated for column 'date' at row 2 > +INSERT INTO t3 VALUES (1,1); > +SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE > +numeropost=topic); > +topic > +2 > +select * from t1; > +mot topic date pseudo > +joce 1 0000-00-00 joce > +test 2 0000-00-00 test > +DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT > +EXISTS(SELECT * FROM t3 WHERE numeropost=topic)); > +select * from t1; > +mot topic date pseudo > +joce 1 0000-00-00 joce > +drop table t1, t2, t3; > +SELECT * FROM (SELECT 1 as a,(SELECT a)) a; > +a (SELECT a) > +1 1 > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT 1)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT 1)` int(1) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT a)` int(1) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a+0)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT a+0)` int(3) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT (SELECT 1 as a UNION SELECT 1+1 limit 1,1) as a; > +select * from t1; > +a > +2 > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` bigint(20) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +explain extended select a,(select (select rand() from t1 limit 1) from t1 limit 1) > +from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 > +2 UNCACHEABLE SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 > +3 UNCACHEABLE SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,(select (select rand() from `test`.`t1` limit 1) from `test`.`t1` limit 1) AS `(select (select rand() from t1 limit 1) from t1 limit 1)` from `test`.`t1` > +drop table t1; > +select t1.Continent, t2.Name, t2.Population from t1 LEFT JOIN t2 ON t1.Code = t2.Country where t2.Population IN (select max(t2.Population) AS Population from t2, t1 where t2.Country = t1.Code group by Continent); > +ERROR 42S02: Table 'test.t1' doesn't exist > +CREATE TABLE t1 ( > +ID int(11) NOT NULL auto_increment, > +name char(35) NOT NULL default '', > +t2 char(3) NOT NULL default '', > +District char(20) NOT NULL default '', > +Population int(11) NOT NULL default '0', > +PRIMARY KEY (ID) > +) ENGINE=MyISAM; > +INSERT INTO t1 VALUES (130,'Sydney','AUS','New South Wales',3276207); > +INSERT INTO t1 VALUES (131,'Melbourne','AUS','Victoria',2865329); > +INSERT INTO t1 VALUES (132,'Brisbane','AUS','Queensland',1291117); > +CREATE TABLE t2 ( > +Code char(3) NOT NULL default '', > +Name char(52) NOT NULL default '', > +Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia', > +Region char(26) NOT NULL default '', > +SurfaceArea float(10,2) NOT NULL default '0.00', > +IndepYear smallint(6) default NULL, > +Population int(11) NOT NULL default '0', > +LifeExpectancy float(3,1) default NULL, > +GNP float(10,2) default NULL, > +GNPOld float(10,2) default NULL, > +LocalName char(45) NOT NULL default '', > +GovernmentForm char(45) NOT NULL default '', > +HeadOfState char(60) default NULL, > +Capital int(11) default NULL, > +Code2 char(2) NOT NULL default '', > +PRIMARY KEY (Code) > +) ENGINE=MyISAM; > +INSERT INTO t2 VALUES ('AUS','Australia','Oceania','Australia and New Zealand',7741220.00,1901,18886000,79.8,351182.00,392911.00,'Australia','Constitutional Monarchy, Federation','Elisabeth II',135,'AU'); > +INSERT INTO t2 VALUES ('AZE','Azerbaijan','Asia','Middle East',86600.00,1991,7734000,62.9,4127.00,4100.00,'Azärbaycan','Federal Republic','Heydär Äliyev',144,'AZ'); > +select t2.Continent, t1.Name, t1.Population from t2 LEFT JOIN t1 ON t2.Code = t1.t2 where t1.Population IN (select max(t1.Population) AS Population from t1, t2 where t1.t2 = t2.Code group by Continent); > +Continent Name Population > +Oceania Sydney 3276207 > +drop table t1, t2; > +CREATE TABLE `t1` ( > +`id` mediumint(8) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`id`), > +UNIQUE KEY `pseudo` (`pseudo`) > +) ENGINE=MyISAM PACK_KEYS=1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (pseudo) VALUES ('test'); > +SELECT 0 IN (SELECT 1 FROM t1 a); > +0 IN (SELECT 1 FROM t1 a) > +0 > +EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +Warnings: > +Note 1003 select <in_optimizer>(0,<exists>(select 1 from `test`.`t1` `a` where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)` > +INSERT INTO t1 (pseudo) VALUES ('test1'); > +SELECT 0 IN (SELECT 1 FROM t1 a); > +0 IN (SELECT 1 FROM t1 a) > +0 > +EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +Warnings: > +Note 1003 select <in_optimizer>(0,<exists>(select 1 from `test`.`t1` `a` where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)` > +drop table t1; > +CREATE TABLE `t1` ( > +`i` int(11) NOT NULL default '0', > +PRIMARY KEY (`i`) > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1); > +UPDATE t1 SET i=i+(SELECT MAX(i) FROM (SELECT 1) t) WHERE i=(SELECT MAX(i)); > +UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i)); > +UPDATE t1 SET t.i=i+(SELECT MAX(i) FROM (SELECT 1) t); > +ERROR 42S22: Unknown column 't.i' in 'field list' > +select * from t1; > +i > +3 > +drop table t1; > +CREATE TABLE t1 ( > +id int(11) default NULL > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1),(1),(2),(2),(1),(3); > +CREATE TABLE t2 ( > +id int(11) default NULL, > +name varchar(15) default NULL > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (4,'vita'), (1,'vita'), (2,'vita'), (1,'vita'); > +update t1, t2 set t2.name='lenka' where t2.id in (select id from t1); > +select * from t2; > +id name > +4 vita > +1 lenka > +2 lenka > +1 lenka > +drop table t1,t2; > +create table t1 (a int, unique index indexa (a)); > +insert into t1 values (-1), (-4), (-2), (NULL); > +select -10 IN (select a from t1 FORCE INDEX (indexa)); > +-10 IN (select a from t1 FORCE INDEX (indexa)) > +NULL > +drop table t1; > +create table t1 (id int not null auto_increment primary key, salary int, key(salary)); > +insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); > +explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`)) > +drop table t1; > +CREATE TABLE t1 ( > +ID int(10) unsigned NOT NULL auto_increment, > +SUB_ID int(3) unsigned NOT NULL default '0', > +REF_ID int(10) unsigned default NULL, > +REF_SUB int(3) unsigned default '0', > +PRIMARY KEY (ID,SUB_ID), > +UNIQUE KEY t1_PK (ID,SUB_ID), > +KEY t1_FK (REF_ID,REF_SUB), > +KEY t1_REFID (REF_ID) > +) ENGINE=MyISAM CHARSET=cp1251; > +INSERT INTO t1 VALUES (1,0,NULL,NULL),(2,0,NULL,NULL); > +SELECT DISTINCT REF_ID FROM t1 WHERE ID= (SELECT DISTINCT REF_ID FROM t1 WHERE ID=2); > +REF_ID > +DROP TABLE t1; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +insert into t1 values (1,0), (2,0), (3,0); > +insert into t2 values (1,1), (2,1), (3,1), (2,2); > +update ignore t1 set b=(select b from t2 where t1.a=t2.a); > +Warnings: > +Error 1242 Subquery returns more than 1 row > +select * from t1; > +a b > +1 1 > +2 NULL > +3 1 > +drop table t1, t2; > +CREATE TABLE `t1` ( > +`id` mediumint(8) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) NOT NULL default '', > +`email` varchar(60) NOT NULL default '', > +PRIMARY KEY (`id`), > +UNIQUE KEY `email` (`email`), > +UNIQUE KEY `pseudo` (`pseudo`) > +) ENGINE=MyISAM CHARSET=latin1 PACK_KEYS=1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (id,pseudo,email) VALUES (1,'test','test'),(2,'test1','test1'); > +SELECT pseudo as a, pseudo as b FROM t1 GROUP BY (SELECT a) ORDER BY (SELECT id*1); > +a b > +test test > +test1 test1 > +drop table if exists t1; > +(SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0); > +a > +1 > +create table t1 (a int not null, b int, primary key (a)); > +create table t2 (a int not null, primary key (a)); > +create table t3 (a int not null, b int, primary key (a)); > +insert into t1 values (1,10), (2,20), (3,30), (4,40); > +insert into t2 values (2), (3), (4), (5); > +insert into t3 values (10,3), (20,4), (30,5); > +select * from t2 where t2.a in (select a from t1); > +a > +2 > +3 > +4 > +explain extended select * from t2 where t2.a in (select a from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 index PRIMARY PRIMARY 4 NULL 4 75.00 Using where; Using index; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 4 75.00 Using where; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +a > +2 > +3 > +explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 4 75.00 Using where; Using join buffer (flat, BNL join) > +1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t1.b 1 100.00 Using index > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`)) > +drop table t1, t2, t3; > +create table t1 (a int, b int, index a (a,b)); > +create table t2 (a int, index a (a)); > +create table t3 (a int, b int, index a (a)); > +insert into t1 values (1,10), (2,20), (3,30), (4,40); > +create table t0(a int); > +insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +insert into t1 > +select rand()*100000+200,rand()*100000 from t0 A, t0 B, t0 C, t0 D; > +insert into t2 values (2), (3), (4), (5); > +insert into t3 values (10,3), (20,4), (30,5); > +select * from t2 where t2.a in (select a from t1); > +a > +2 > +3 > +4 > +explain extended select * from t2 where t2.a in (select a from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where (`test`.`t1`.`a` = `test`.`t2`.`a`) > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +a > +2 > +3 > +explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t3 index a a 5 NULL 3 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 10 test.t2.a,test.t3.a 116 100.00 Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` = `test`.`t3`.`a`)) > +insert into t1 values (3,31); > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +3 > +4 > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30 and t1.b <> 31); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +drop table t0, t1, t2, t3; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +create table t3 (a int, b int); > +insert into t1 values (0,100),(1,2), (1,3), (2,2), (2,7), (2,-1), (3,10); > +insert into t2 values (0,0), (1,1), (2,1), (3,1), (4,1); > +insert into t3 values (3,3), (2,2), (1,1); > +select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) from t3; > +a (select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) > +3 1 > +2 2 > +1 2 > +drop table t1,t2,t3; > +create table t1 (s1 int); > +create table t2 (s1 int); > +insert into t1 values (1); > +insert into t2 values (1); > +select * from t1 where exists (select s1 from t2 having max(t2.s1)=t1.s1); > +s1 > +1 > +drop table t1,t2; > +create table t1 (s1 int); > +create table t2 (s1 int); > +insert into t1 values (1); > +insert into t2 values (1); > +update t1 set s1 = s1 + 1 where 1 = (select x.s1 as A from t2 WHERE t2.s1 > t1.s1 order by A); > +ERROR 42S22: Unknown column 'x.s1' in 'field list' > +DROP TABLE t1, t2; > +CREATE TABLE t1 (s1 CHAR(5) COLLATE latin1_german1_ci, > +s2 CHAR(5) COLLATE latin1_swedish_ci); > +INSERT INTO t1 VALUES ('z','?'); > +select * from t1 where s1 > (select max(s2) from t1); > +ERROR HY000: Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '>' > +select * from t1 where s1 > any (select max(s2) from t1); > +ERROR HY000: Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '>' > +drop table t1; > +create table t1(toid int,rd int); > +create table t2(userid int,pmnew int,pmtotal int); > +insert into t2 values(1,0,0),(2,0,0); > +insert into t1 values(1,0),(1,0),(1,0),(1,12),(1,15),(1,123),(1,12312),(1,12312),(1,123),(2,0),(2,0),(2,1),(2,2); > +select userid,pmtotal,pmnew, (select count(rd) from t1 where toid=t2.userid) calc_total, (select count(rd) from t1 where rd=0 and toid=t2.userid) calc_new from t2 where userid in (select distinct toid from t1); > +userid pmtotal pmnew calc_total calc_new > +1 0 0 9 3 > +2 0 0 4 2 > +drop table t1, t2; > +create table t1 (s1 char(5)); > +select (select 'a','b' from t1 union select 'a','b' from t1) from t1; > +ERROR 21000: Operand should contain 1 column(s) > +insert into t1 values ('tttt'); > +select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1); > +s1 > +tttt > +explain extended (select * from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 > +Warnings: > +Note 1003 (select 'tttt' AS `s1` from `test`.`t1`) > +(select * from t1); > +s1 > +tttt > +drop table t1; > +create table t1 (s1 char(5), index s1(s1)); > +create table t2 (s1 char(5), index s1(s1)); > +insert into t1 values ('a1'),('a2'),('a3'); > +insert into t2 values ('a1'),('a2'); > +select s1, s1 NOT IN (SELECT s1 FROM t2) from t1; > +s1 s1 NOT IN (SELECT s1 FROM t2) > +a1 0 > +a2 0 > +a3 1 > +select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > +s1 s1 = ANY (SELECT s1 FROM t2) > +a1 1 > +a2 1 > +a3 0 > +select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > +s1 s1 <> ALL (SELECT s1 FROM t2) > +a1 0 > +a2 0 > +a3 1 > +select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > +s1 s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') > +a1 0 > +a2 1 > +a3 1 > +explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +drop table t1,t2; > +create table t2 (a int, b int); > +create table t3 (a int); > +insert into t3 values (6),(7),(3); > +select * from t3 where a >= all (select b from t2); > +a > +6 > +7 > +3 > +explain extended select * from t3 where a >= all (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))) > +select * from t3 where a >= some (select b from t2); > +a > +explain extended select * from t3 where a >= some (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where a >= all (select b from t2 group by 1); > +a > +6 > +7 > +3 > +explain extended select * from t3 where a >= all (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where a >= some (select b from t2 group by 1); > +a > +explain extended select * from t3 where a >= some (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where NULL >= any (select b from t2); > +a > +explain extended select * from t3 where NULL >= any (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where NULL >= any (select b from t2 group by 1); > +a > +explain extended select * from t3 where NULL >= any (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where NULL >= some (select b from t2); > +a > +explain extended select * from t3 where NULL >= some (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where NULL >= some (select b from t2 group by 1); > +a > +explain extended select * from t3 where NULL >= some (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1)))) > +insert into t2 values (2,2), (2,1), (3,3), (3,1); > +select * from t3 where a > all (select max(b) from t2 group by a); > +a > +6 > +7 > +explain extended select * from t3 where a > all (select max(b) from t2 group by a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))) > +drop table t2, t3; > +CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ; > +INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now()); > +CREATE TABLE `t2` (`db_id` int(11) NOT NULL auto_increment,`name` varchar(200) NOT NULL default '',`primary_uid` smallint(6) NOT NULL default '0',`secondary_uid` smallint(6) NOT NULL default '0',PRIMARY KEY (`db_id`),UNIQUE KEY `name_2` (`name`),FULLTEXT KEY `name` (`name`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2147483647; > +INSERT INTO `t2` (`db_id`, `name`, `primary_uid`, `secondary_uid`) VALUES (18, 'Not Set 1', 0, 0),(19, 'Valid', 1, 2),(20, 'Valid 2', 1, 2),(21, 'Should Not Return', 1, 2),(26, 'Not Set 2', 0, 0),(-1, 'ALL DB\'S', 0, 0); > +CREATE TABLE `t3` (`taskgenid` mediumint(9) NOT NULL auto_increment,`dbid` int(11) NOT NULL default '0',`taskid` int(11) NOT NULL default '0',`mon` tinyint(4) NOT NULL default '1',`tues` tinyint(4) NOT NULL default '1',`wed` tinyint(4) NOT NULL default '1',`thur` tinyint(4) NOT NULL default '1',`fri` tinyint(4) NOT NULL default '1',`sat` tinyint(4) NOT NULL default '0',`sun` tinyint(4) NOT NULL default '0',`how_often` smallint(6) NOT NULL default '1',`userid` smallint(6) NOT NULL default '0',`active` tinyint(4) NOT NULL default '1',PRIMARY KEY (`taskgenid`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2 ; > +INSERT INTO `t3` (`taskgenid`, `dbid`, `taskid`, `mon`, `tues`,`wed`, `thur`, `fri`, `sat`, `sun`, `how_often`, `userid`, `active`) VALUES (1,-1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1); > +CREATE TABLE `t4` (`task_id` smallint(6) NOT NULL default '0',`description` varchar(200) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO `t4` (`task_id`, `description`) VALUES (1, 'Daily Check List'),(2, 'Weekly Status'); > +select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid; > +dbid name (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') > +-1 Valid 1 > +-1 Valid 2 1 > +-1 Should Not Return 0 > +SELECT dbid, name FROM t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND ((date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')) AND t4.task_id = taskid; > +dbid name > +-1 Valid > +-1 Valid 2 > +drop table t1,t2,t3,t4; > +CREATE TABLE t1 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1),(5); > +CREATE TABLE t2 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (2),(6); > +select * from t1 where (1,2,6) in (select * from t2); > +ERROR 21000: Operand should contain 3 column(s) > +DROP TABLE t1,t2; > +create table t1 (s1 int); > +insert into t1 values (1); > +insert into t1 values (2); > +set sort_buffer_size = (select s1 from t1); > +ERROR 21000: Subquery returns more than 1 row > +do (select * from t1); > +Warnings: > +Error 1242 Subquery returns more than 1 row > +drop table t1; > +create table t1 (s1 char); > +insert into t1 values ('e'); > +select * from t1 where 'f' > any (select s1 from t1); > +s1 > +e > +select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1); > +s1 > +e > +explain extended select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00 > +2 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > +3 UNION t1 system NULL NULL NULL NULL 1 100.00 > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))) > +drop table t1; > +CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874'); > +CREATE TABLE t2 (code char(5) NOT NULL default '',UNIQUE KEY code (code)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES ('1'),('1226'),('1245'),('1862'),('18623'),('1874'),('1967'),('6'); > +select c.number as phone,(select p.code from t2 p where c.number like concat(p.code, '%') order by length(p.code) desc limit 1) as code from t1 c; > +phone code > +69294728265 6 > +18621828126 1862 > +89356874041 NULL > +95895001874 NULL > +drop table t1, t2; > +create table t1 (s1 int); > +create table t2 (s1 int); > +select * from t1 where (select count(*) from t2 where t1.s2) = 1; > +ERROR 42S22: Unknown column 't1.s2' in 'where clause' > +select * from t1 where (select count(*) from t2 group by t1.s2) = 1; > +ERROR 42S22: Unknown column 't1.s2' in 'group statement' > +select count(*) from t2 group by t1.s2; > +ERROR 42S22: Unknown column 't1.s2' in 'group statement' > +drop table t1, t2; > +CREATE TABLE t1(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC VARCHAR(20) DEFAULT NULL,PRIMARY KEY (COLA, COLB)); > +CREATE TABLE t2(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC CHAR(1) NOT NULL,PRIMARY KEY (COLA)); > +INSERT INTO t1 VALUES (1,1,'1A3240'), (1,2,'4W2365'); > +INSERT INTO t2 VALUES (100, 200, 'C'); > +SELECT DISTINCT COLC FROM t1 WHERE COLA = (SELECT COLA FROM t2 WHERE COLB = 200 AND COLC ='C' LIMIT 1); > +COLC > +DROP TABLE t1, t2; > +CREATE TABLE t1 (a int(1)); > +INSERT INTO t1 VALUES (1),(1),(1),(1),(1),(2),(3),(4),(5); > +SELECT DISTINCT (SELECT a) FROM t1 LIMIT 100; > +(SELECT a) > +1 > +2 > +3 > +4 > +5 > +DROP TABLE t1; > +create table t1 (a int, b decimal(13, 3)); > +insert into t1 values (1, 0.123); > +select a, (select max(b) from t1) into outfile "../../tmp/subselect.out.file.1" from t1; > +delete from t1; > +load data infile "../../tmp/subselect.out.file.1" into table t1; > +select * from t1; > +a b > +1 0.123 > +drop table t1; > +CREATE TABLE `t1` ( > +`id` int(11) NOT NULL auto_increment, > +`id_cns` tinyint(3) unsigned NOT NULL default '0', > +`tipo` enum('','UNO','DUE') NOT NULL default '', > +`anno_dep` smallint(4) unsigned zerofill NOT NULL default '0000', > +`particolare` mediumint(8) unsigned NOT NULL default '0', > +`generale` mediumint(8) unsigned NOT NULL default '0', > +`bis` tinyint(3) unsigned NOT NULL default '0', > +PRIMARY KEY (`id`), > +UNIQUE KEY `idx_cns_gen_anno` (`anno_dep`,`id_cns`,`generale`,`particolare`), > +UNIQUE KEY `idx_cns_par_anno` (`id_cns`,`anno_dep`,`tipo`,`particolare`,`bis`) > +); > +INSERT INTO `t1` VALUES (1,16,'UNO',1987,2048,9681,0),(2,50,'UNO',1987,1536,13987,0),(3,16,'UNO',1987,2432,14594,0),(4,16,'UNO',1987,1792,13422,0),(5,16,'UNO',1987,1025,10240,0),(6,16,'UNO',1987,1026,7089,0); > +CREATE TABLE `t2` ( > +`id` tinyint(3) unsigned NOT NULL auto_increment, > +`max_anno_dep` smallint(6) unsigned NOT NULL default '0', > +PRIMARY KEY (`id`) > +); > +INSERT INTO `t2` VALUES (16,1987),(50,1990),(51,1990); > +SELECT cns.id, cns.max_anno_dep, cns.max_anno_dep = (SELECT s.anno_dep FROM t1 AS s WHERE s.id_cns = cns.id ORDER BY s.anno_dep DESC LIMIT 1) AS PIPPO FROM t2 AS cns; > +id max_anno_dep PIPPO > +16 1987 1 > +50 1990 0 > +51 1990 NULL > +DROP TABLE t1, t2; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +SET SQL_SELECT_LIMIT=1; > +select sum(a) from (select * from t1) as a; > +sum(a) > +6 > +select 2 in (select * from t1); > +2 in (select * from t1) > +1 > +SET SQL_SELECT_LIMIT=default; > +drop table t1; > +CREATE TABLE t1 (a int, b int, INDEX (a)); > +INSERT INTO t1 VALUES (1, 1), (1, 2), (1, 3); > +SELECT * FROM t1 WHERE a = (SELECT MAX(a) FROM t1 WHERE a = 1) ORDER BY b; > +a b > +1 1 > +1 2 > +1 3 > +DROP TABLE t1; > +create table t1(val varchar(10)); > +insert into t1 values ('aaa'), ('bbb'),('eee'),('mmm'),('ppp'); > +select count(*) from t1 as w1 where w1.val in (select w2.val from t1 as w2 where w2.val like 'm%') and w1.val in (select w3.val from t1 as w3 where w3.val like 'e%'); > +count(*) > +0 > +drop table t1; > +create table t1 (id int not null, text varchar(20) not null default '', primary key (id)); > +insert into t1 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text11'), (12, 'text12'); > +select * from t1 where id not in (select id from t1 where id < 8); > +id text > +8 text8 > +9 text9 > +10 text10 > +11 text11 > +12 text12 > +select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > +id text > +8 text8 > +9 text9 > +10 text10 > +11 text11 > +12 text12 > +explain extended select * from t1 where id not in (select id from t1 where id < 8); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > +2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > +Warnings: > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > +explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > +2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > +Warnings: > +Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > +insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > +create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > +insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > +select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id); > +id text id text id text > +1 text1 1 text1 1 text1 > +2 text2 2 text2 2 text2 > +3 text3 3 text3 3 text3 > +4 text4 4 text4 4 text4 > +5 text5 5 text5 5 text5 > +6 text6 6 text6 6 text6 > +7 text7 7 text7 7 text7 > +8 text8 8 text8 8 text8 > +9 text9 9 text9 9 text9 > +10 text10 10 text10 10 text10 > +11 text11 11 text1 11 text11 > +12 text12 12 text2 12 text12 > +1000 text1000 NULL NULL 1000 text1000 > +1001 text1001 NULL NULL 1000 text1000 > +explain extended select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE a ALL NULL NULL NULL NULL 14 100.00 > +1 SIMPLE b eq_ref PRIMARY PRIMARY 4 test.a.id 2 100.00 > +1 SIMPLE c eq_ref PRIMARY PRIMARY 4 func 1 100.00 Using index condition > +Warnings: > +Note 1003 select `test`.`a`.`id` AS `id`,`test`.`a`.`text` AS `text`,`test`.`b`.`id` AS `id`,`test`.`b`.`text` AS `text`,`test`.`c`.`id` AS `id`,`test`.`c`.`text` AS `text` from `test`.`t1` `a` left join `test`.`t2` `b` on(((`test`.`b`.`id` = `test`.`a`.`id`) or isnull(`test`.`b`.`id`))) join `test`.`t1` `c` where (if(isnull(`test`.`b`.`id`),1000,`test`.`b`.`id`) = `test`.`c`.`id`) > +drop table t1,t2; > +create table t1 (a int); > +insert into t1 values (1); > +explain select benchmark(1000, (select a from t1 where a=sha(rand()))); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 1 > +drop table t1; > +create table t1(id int); > +create table t2(id int); > +create table t3(flag int); > +select (select * from t3 where id not null) from t1, t2; > +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'null) from t1, t2' at line 1 > +drop table t1,t2,t3; > +CREATE TABLE t1 (id INT); > +CREATE TABLE t2 (id INT); > +INSERT INTO t1 VALUES (1), (2); > +INSERT INTO t2 VALUES (1); > +SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id); > +id c > +1 1 > +2 0 > +SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id); > +id c > +1 1 > +2 0 > +SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY t1.id; > +id c > +1 1 > +2 0 > +SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY id; > +id c > +1 1 > +2 0 > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( a int, b int ); > +INSERT INTO t1 VALUES (1,1),(2,2),(3,3); > +SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +ALTER TABLE t1 ADD INDEX (a); > +SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE a > ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE a > ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) <> ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 2 column(s) > +SELECT a FROM t1 WHERE a = ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a,2 FROM t1 WHERE b = 2); > +a > +SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 2 column(s) > +SELECT a FROM t1 WHERE a <> ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a,2 FROM t1 WHERE b = 2); > +a > +1 > +2 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +3 > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-') > +0- > +0- > +1- > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-') > +1- > +0- > +0- > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-') > +0- > +1- > +0- > +DROP TABLE t1; > +CREATE TABLE t1 ( a double, b double ); > +INSERT INTO t1 VALUES (1,1),(2,2),(3,3); > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +3 > +DROP TABLE t1; > +CREATE TABLE t1 ( a char(1), b char(1)); > +INSERT INTO t1 VALUES ('1','1'),('2','2'),('3','3'); > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +3 > +DROP TABLE t1; > +create table t1 (a int, b int); > +insert into t1 values (1,2),(3,4); > +select * from t1 up where exists (select * from t1 where t1.a=up.a); > +a b > +1 2 > +3 4 > +explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY up ALL NULL NULL NULL NULL 2 100.00 Using where > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > +Warnings: > +Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > +drop table t1; > +CREATE TABLE t1 (t1_a int); > +INSERT INTO t1 VALUES (1); > +CREATE TABLE t2 (t2_a int, t2_b int, PRIMARY KEY (t2_a, t2_b)); > +INSERT INTO t2 VALUES (1, 1), (1, 2); > +SELECT * FROM t1, t2 table2 WHERE t1_a = 1 AND table2.t2_a = 1 > +HAVING table2.t2_b = (SELECT MAX(t2_b) FROM t2 WHERE t2_a = table2.t2_a); > +t1_a t2_a t2_b > +1 1 2 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (id int(11) default NULL,name varchar(10) default NULL); > +INSERT INTO t1 VALUES (1,'Tim'),(2,'Rebecca'),(3,NULL); > +CREATE TABLE t2 (id int(11) default NULL, pet varchar(10) default NULL); > +INSERT INTO t2 VALUES (1,'Fido'),(2,'Spot'),(3,'Felix'); > +SELECT a.*, b.* FROM (SELECT * FROM t1) AS a JOIN t2 as b on a.id=b.id; > +id name id pet > +1 Tim 1 Fido > +2 Rebecca 2 Spot > +3 NULL 3 Felix > +drop table t1,t2; > +CREATE TABLE t1 ( a int, b int ); > +CREATE TABLE t2 ( c int, d int ); > +INSERT INTO t1 VALUES (1,2), (2,3), (3,4); > +SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +abc b > +1 2 > +2 3 > +3 4 > +INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +select * from t2; > +c d > +1 2 > +2 3 > +3 4 > +CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +select * from t3; > +abc b > +1 2 > +2 3 > +3 4 > +prepare stmt1 from "INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);"; > +execute stmt1; > +deallocate prepare stmt1; > +select * from t2; > +c d > +1 2 > +2 3 > +3 4 > +1 2 > +2 3 > +3 4 > +drop table t3; > +prepare stmt1 from "CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);"; > +execute stmt1; > +select * from t3; > +abc b > +1 2 > +2 3 > +3 4 > +deallocate prepare stmt1; > +DROP TABLE t1, t2, t3; > +CREATE TABLE `t1` ( `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1; > +insert into t1 values (1); > +CREATE TABLE `t2` ( `b` int(11) default NULL, `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1; > +insert into t2 values (1,2); > +select t000.a, count(*) `C` FROM t1 t000 GROUP BY t000.a HAVING count(*) > ALL (SELECT count(*) FROM t2 t001 WHERE t001.a=1); > +a C > +1 1 > +drop table t1,t2; > +create table t1 (a int not null auto_increment primary key, b varchar(40), fulltext(b)); > +insert into t1 (b) values ('ball'),('ball games'), ('games'), ('foo'), ('foobar'), ('Serg'), ('Sergei'),('Georg'), ('Patrik'),('Hakan'); > +create table t2 (a int); > +insert into t2 values (1),(3),(2),(7); > +select a,b from t1 where match(b) against ('Ball') > 0; > +a b > +1 ball > +2 ball games > +select a from t2 where a in (select a from t1 where match(b) against ('Ball') > 0); > +a > +1 > +2 > +drop table t1,t2; > +CREATE TABLE t1(`IZAVORGANG_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`KUERZEL` VARCHAR(10) CHARACTER SET latin1 COLLATE latin1_bin,`IZAANALYSEART_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`IZAPMKZ_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin); > +CREATE INDEX AK01IZAVORGANG ON t1(izaAnalyseart_id,Kuerzel); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000001','601','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000002','602','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000003','603','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000004','101','D0000000001','I0000000001'); > +SELECT `IZAVORGANG_ID` FROM t1 WHERE `KUERZEL` IN(SELECT MIN(`KUERZEL`)`Feld1` FROM t1 WHERE `KUERZEL` LIKE'601%'And`IZAANALYSEART_ID`='D0000000001'); > +IZAVORGANG_ID > +D0000000001 > +drop table t1; > +CREATE TABLE `t1` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY (`aid`,`bid`)); > +CREATE TABLE `t2` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY (`aid`,`bid`)); > +insert into t1 values (1,1),(1,2),(2,1),(2,2); > +insert into t2 values (1,2),(2,2); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +alter table t2 drop primary key; > +alter table t2 add key KEY1 (aid, bid); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +alter table t2 drop key KEY1; > +alter table t2 add primary key (bid, aid); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +drop table t1,t2; > +CREATE TABLE t1 (howmanyvalues bigint, avalue int); > +INSERT INTO t1 VALUES (1, 1),(2, 1),(2, 2),(3, 1),(3, 2),(3, 3),(4, 1),(4, 2),(4, 3),(4, 4); > +SELECT howmanyvalues, count(*) from t1 group by howmanyvalues; > +howmanyvalues count(*) > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +CREATE INDEX t1_howmanyvalues_idx ON t1 (howmanyvalues); > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues+1 = a.howmanyvalues+1) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.avalue) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 1 > +3 1 > +4 1 > +drop table t1; > +create table t1 (x int); > +select (select b.x from t1 as b where b.x=a.x) from t1 as a where a.x=2 group by a.x; > +(select b.x from t1 as b where b.x=a.x) > +drop table t1; > +CREATE TABLE `t1` ( `master` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `slave` int(10) unsigned NOT NULL default '0', `access` int(10) unsigned NOT NULL default '0', UNIQUE KEY `access_u` (`master`,`map`,`slave`)); > +INSERT INTO `t1` VALUES (1,0,0,700),(1,1,1,400),(1,5,5,400),(1,12,12,400),(1,12,32,400),(4,12,32,400); > +CREATE TABLE `t2` ( `id` int(10) unsigned NOT NULL default '0', `pid` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `level` tinyint(4) unsigned NOT NULL default '0', `title` varchar(255) default NULL, PRIMARY KEY (`id`,`pid`,`map`), KEY `level` (`level`), KEY `id` (`id`,`map`)) ; > +INSERT INTO `t2` VALUES (6,5,12,7,'a'),(12,0,0,7,'a'),(12,1,0,7,'a'),(12,5,5,7,'a'),(12,5,12,7,'a'); > +SELECT b.sc FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b; > +ERROR 42S22: Unknown column 'b.sc' in 'field list' > +SELECT b.ac FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b; > +ac > +700 > +NULL > +drop tables t1,t2; > +create table t1 (a int not null, b int not null, c int, primary key (a,b)); > +insert into t1 values (1,1,1), (2,2,2), (3,3,3); > +set @b:= 0; > +explain select sum(a) from t1 where b > @b; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 index NULL PRIMARY 8 NULL 3 Using where; Using index > +set @a:= (select sum(a) from t1 where b > @b); > +explain select a from t1 where c=2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where > +do @a:= (select sum(a) from t1 where b > @b); > +explain select a from t1 where c=2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where > +drop table t1; > +set @got_val= (SELECT 1 FROM (SELECT 'A' as my_col) as T1 ) ; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +insert into t1 values (1,1),(1,2),(1,3),(2,4),(2,5); > +insert into t2 values (1,3),(2,1); > +select distinct a,b, (select max(b) from t2 where t1.b=t2.a) from t1 order by t1.b; > +a b (select max(b) from t2 where t1.b=t2.a) > +1 1 3 > +1 2 1 > +1 3 NULL > +2 4 NULL > +2 5 NULL > +drop table t1, t2; > +create table t1 (id int); > +create table t2 (id int, body text, fulltext (body)); > +insert into t1 values(1),(2),(3); > +insert into t2 values (1,'test'), (2,'mysql'), (3,'test'), (4,'test'); > +select count(distinct id) from t1 where id in (select id from t2 where match(body) against ('mysql' in boolean mode)); > +count(distinct id) > +1 > +drop table t2,t1; > +create table t1 (s1 int,s2 int); > +insert into t1 values (20,15); > +select * from t1 where (('a',null) <=> (select 'a',s2 from t1 where s1 = 0)); > +s1 s2 > +drop table t1; > +create table t1 (s1 int); > +insert into t1 values (1),(null); > +select * from t1 where s1 < all (select s1 from t1); > +s1 > +select s1, s1 < all (select s1 from t1) from t1; > +s1 s1 < all (select s1 from t1) > +1 0 > +NULL NULL > +drop table t1; > +CREATE TABLE t1 ( > +Code char(3) NOT NULL default '', > +Name char(52) NOT NULL default '', > +Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia', > +Region char(26) NOT NULL default '', > +SurfaceArea float(10,2) NOT NULL default '0.00', > +IndepYear smallint(6) default NULL, > +Population int(11) NOT NULL default '0', > +LifeExpectancy float(3,1) default NULL, > +GNP float(10,2) default NULL, > +GNPOld float(10,2) default NULL, > +LocalName char(45) NOT NULL default '', > +GovernmentForm char(45) NOT NULL default '', > +HeadOfState char(60) default NULL, > +Capital int(11) default NULL, > +Code2 char(2) NOT NULL default '' > +) ENGINE=MyISAM; > +INSERT INTO t1 VALUES ('XXX','Xxxxx','Oceania','Xxxxxx',26.00,0,0,0,0,0,'Xxxxx','Xxxxx','Xxxxx',NULL,'XX'); > +INSERT INTO t1 VALUES ('ASM','American Samoa','Oceania','Polynesia',199.00,0,68000,75.1,334.00,NULL,'Amerika Samoa','US Territory','George W. Bush',54,'AS'); > +INSERT INTO t1 VALUES ('ATF','French Southern territories','Antarctica','Antarctica',7780.00,0,0,NULL,0.00,NULL,'Terres australes françaises','Nonmetropolitan Territory of France','Jacques Chirac',NULL,'TF'); > +INSERT INTO t1 VALUES ('UMI','United States Minor Outlying Islands','Oceania','Micronesia/Caribbean',16.00,0,0,NULL,0.00,NULL,'United States Minor Outlying Islands','Dependent Territory of the US','George W. Bush',NULL,'UM'); > +/*!40000 ALTER TABLE t1 ENABLE KEYS */; > +SELECT DISTINCT Continent AS c FROM t1 outr WHERE > +Code <> SOME ( SELECT Code FROM t1 WHERE Continent = outr.Continent AND > +Population < 200); > +c > +Oceania > +drop table t1; > +create table t1 (a1 int); > +create table t2 (b1 int); > +select * from t1 where a2 > any(select b1 from t2); > +ERROR 42S22: Unknown column 'a2' in 'IN/ALL/ANY subquery' > +select * from t1 where a1 > any(select b1 from t2); > +a1 > +drop table t1,t2; > +create table t1 (a integer, b integer); > +select (select * from t1) = (select 1,2); > +(select * from t1) = (select 1,2) > +NULL > +select (select 1,2) = (select * from t1); > +(select 1,2) = (select * from t1) > +NULL > +select row(1,2) = ANY (select * from t1); > +row(1,2) = ANY (select * from t1) > +0 > +select row(1,2) != ALL (select * from t1); > +row(1,2) != ALL (select * from t1) > +1 > +drop table t1; > +create table t1 (a integer, b integer); > +select row(1,(2,2)) in (select * from t1 ); > +ERROR 21000: Operand should contain 2 column(s) > +select row(1,(2,2)) = (select * from t1 ); > +ERROR 21000: Operand should contain 2 column(s) > +select (select * from t1) = row(1,(2,2)); > +ERROR 21000: Operand should contain 1 column(s) > +drop table t1; > +create table t1 (a integer); > +insert into t1 values (1); > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 as xx, 1 = ALL ( select 1 from t1 where 1 = xx ); > +xx 1 = ALL ( select 1 from t1 where 1 = xx ) > +1 1 > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +drop table t1; > +CREATE TABLE t1 ( > +categoryId int(11) NOT NULL, > +courseId int(11) NOT NULL, > +startDate datetime NOT NULL, > +endDate datetime NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL, > +attributes text NOT NULL > +); > +INSERT INTO t1 VALUES (1,41,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''), > +(1,86,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(1,87,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(2,52,'2004-03-15','2004-10-01','2004-03-15','2004-09-17',''), > +(2,53,'2004-03-16','2004-10-01','2004-03-16','2004-09-17',''), > +(2,88,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(2,89,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(3,51,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''), > +(5,12,'2004-02-18','2010-01-01','2004-02-18','2004-02-18',''); > +CREATE TABLE t2 ( > +userId int(11) NOT NULL, > +courseId int(11) NOT NULL, > +date datetime NOT NULL > +); > +INSERT INTO t2 VALUES (5141,71,'2003-11-18'), > +(5141,72,'2003-11-25'),(5141,41,'2004-08-06'), > +(5141,52,'2004-08-06'),(5141,53,'2004-08-06'), > +(5141,12,'2004-08-06'),(5141,86,'2004-10-21'), > +(5141,87,'2004-10-21'),(5141,88,'2004-10-21'), > +(5141,89,'2004-10-22'),(5141,51,'2004-10-26'); > +CREATE TABLE t3 ( > +groupId int(11) NOT NULL, > +parentId int(11) NOT NULL, > +startDate datetime NOT NULL, > +endDate datetime NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL, > +ordering int(11) > +); > +INSERT INTO t3 VALUES (12,9,'1000-01-01','3999-12-31','2004-01-29','2004-01-29',NULL); > +CREATE TABLE t4 ( > +id int(11) NOT NULL, > +groupTypeId int(11) NOT NULL, > +groupKey varchar(50) NOT NULL, > +name text, > +ordering int(11), > +description text, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL > +); > +INSERT INTO t4 VALUES (9,5,'stationer','stationer',0,'Stationer','2004-01-29','2004-01-29'), > +(12,5,'group2','group2',0,'group2','2004-01-29','2004-01-29'); > +CREATE TABLE t5 ( > +userId int(11) NOT NULL, > +groupId int(11) NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL > +); > +INSERT INTO t5 VALUES (5141,12,'2004-08-06','2004-08-06'); > +select > +count(distinct t2.userid) pass, > +groupstuff.*, > +count(t2.courseid) crse, > +t1.categoryid, > +t2.courseid, > +date_format(date, '%b%y') as colhead > +from t2 > +join t1 on t2.courseid=t1.courseid > +join > +( > +select > +t5.userid, > +parentid, > +parentgroup, > +childid, > +groupname, > +grouptypeid > +from t5 > +join > +( > +select t4.id as parentid, > +t4.name as parentgroup, > +t4.id as childid, > +t4.name as groupname, > +t4.grouptypeid > +from t4 > +) as gin on t5.groupid=gin.childid > +) as groupstuff on t2.userid = groupstuff.userid > +group by > +groupstuff.groupname, colhead , t2.courseid; > +pass userid parentid parentgroup childid groupname grouptypeid crse categoryid courseid colhead > +1 5141 12 group2 12 group2 5 1 5 12 Aug04 > +1 5141 12 group2 12 group2 5 1 1 41 Aug04 > +1 5141 12 group2 12 group2 5 1 2 52 Aug04 > +1 5141 12 group2 12 group2 5 1 2 53 Aug04 > +1 5141 12 group2 12 group2 5 1 3 51 Oct04 > +1 5141 12 group2 12 group2 5 1 1 86 Oct04 > +1 5141 12 group2 12 group2 5 1 1 87 Oct04 > +1 5141 12 group2 12 group2 5 1 2 88 Oct04 > +1 5141 12 group2 12 group2 5 1 2 89 Oct04 > +drop table t1, t2, t3, t4, t5; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +SELECT 1 FROM t1 WHERE (SELECT 1) in (SELECT 1); > +1 > +1 > +1 > +1 > +drop table t1; > +create table t1 (a int); > +create table t2 (a int); > +insert into t1 values (1),(2); > +insert into t2 values (0),(1),(2),(3); > +select a from t2 where a in (select a from t1); > +a > +1 > +2 > +select a from t2 having a in (select a from t1); > +a > +1 > +2 > +prepare stmt1 from "select a from t2 where a in (select a from t1)"; > +execute stmt1; > +a > +1 > +2 > +execute stmt1; > +a > +1 > +2 > +deallocate prepare stmt1; > +prepare stmt1 from "select a from t2 having a in (select a from t1)"; > +execute stmt1; > +a > +1 > +2 > +execute stmt1; > +a > +1 > +2 > +deallocate prepare stmt1; > +drop table t1, t2; > +create table t1 (a int, b int); > +insert into t1 values (1,2); > +select 1 = (select * from t1); > +ERROR 21000: Operand should contain 1 column(s) > +select (select * from t1) = 1; > +ERROR 21000: Operand should contain 2 column(s) > +select (1,2) = (select a from t1); > +ERROR 21000: Operand should contain 2 column(s) > +select (select a from t1) = (1,2); > +ERROR 21000: Operand should contain 1 column(s) > +select (1,2,3) = (select * from t1); > +ERROR 21000: Operand should contain 3 column(s) > +select (select * from t1) = (1,2,3); > +ERROR 21000: Operand should contain 2 column(s) > +drop table t1; > +CREATE TABLE `t1` ( > +`itemid` bigint(20) unsigned NOT NULL auto_increment, > +`sessionid` bigint(20) unsigned default NULL, > +`time` int(10) unsigned NOT NULL default '0', > +`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT > +NULL default '', > +`data` text collate latin1_general_ci NOT NULL, > +PRIMARY KEY (`itemid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t1` VALUES (1, 1, 1, 'D', ''); > +CREATE TABLE `t2` ( > +`sessionid` bigint(20) unsigned NOT NULL auto_increment, > +`pid` int(10) unsigned NOT NULL default '0', > +`date` int(10) unsigned NOT NULL default '0', > +`ip` varchar(15) collate latin1_general_ci NOT NULL default '', > +PRIMARY KEY (`sessionid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1'); > +SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30; > +ip count( e.itemid ) > +10.10.10.1 1 > +drop tables t1,t2; > +create table t1 (fld enum('0','1')); > +insert into t1 values ('1'); > +select * from (select max(fld) from t1) as foo; > +max(fld) > +1 > +drop table t1; > +CREATE TABLE t1 (one int, two int, flag char(1)); > +CREATE TABLE t2 (one int, two int, flag char(1)); > +INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N'); > +INSERT INTO t2 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N'); > +SELECT * FROM t1 > +WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t2 WHERE flag = 'N'); > +one two flag > +5 6 N > +7 8 N > +SELECT * FROM t1 > +WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t1 WHERE flag = 'N'); > +one two flag > +5 6 N > +7 8 N > +insert into t2 values (null,null,'N'); > +insert into t2 values (null,3,'0'); > +insert into t2 values (null,5,'0'); > +insert into t2 values (10,null,'0'); > +insert into t1 values (10,3,'0'); > +insert into t1 values (10,5,'0'); > +insert into t1 values (10,10,'0'); > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N') as 'test' from t1; > +one two test > +1 2 NULL > +2 3 NULL > +3 4 NULL > +5 6 1 > +7 8 1 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > +one two > +5 6 > +7 8 > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N' group by one,two) as 'test' from t1; > +one two test > +1 2 NULL > +2 3 NULL > +3 4 NULL > +5 6 1 > +7 8 1 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1; > +one two test > +1 2 0 > +2 3 NULL > +3 4 0 > +5 6 0 > +7 8 0 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > +one two test > +1 2 0 > +2 3 NULL > +3 4 0 > +5 6 0 > +7 8 0 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > +explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +1 PRIMARY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; FirstMatch(t1) > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`two` = `test`.`t1`.`two`) and (`test`.`t2`.`one` = `test`.`t1`.`one`) and (`test`.`t2`.`flag` = 'N')) > +explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a char(5), b char(5)); > +INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > +SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb')); > +a b > +aaa aaa > +DROP TABLE t1; > +CREATE TABLE t1 (a int); > +CREATE TABLE t2 (a int, b int); > +CREATE TABLE t3 (b int NOT NULL); > +INSERT INTO t1 VALUES (1), (2), (3), (4); > +INSERT INTO t2 VALUES (1,10), (3,30); > +SELECT * FROM t2 LEFT JOIN t3 ON t2.b=t3.b > +WHERE t3.b IS NOT NULL OR t2.a > 10; > +a b b > +SELECT * FROM t1 > +WHERE t1.a NOT IN (SELECT a FROM t2 LEFT JOIN t3 ON t2.b=t3.b > +WHERE t3.b IS NOT NULL OR t2.a > 10); > +a > +1 > +2 > +3 > +4 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (f1 INT); > +CREATE TABLE t2 (f2 INT); > +INSERT INTO t1 VALUES (1); > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2); > +f1 > +1 > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE 1=0); > +f1 > +1 > +INSERT INTO t2 VALUES (1); > +INSERT INTO t2 VALUES (2); > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE f2=0); > +f1 > +1 > +DROP TABLE t1, t2; > +select 1 from dual where 1 < any (select 2); > +1 > +1 > +select 1 from dual where 1 < all (select 2); > +1 > +1 > +select 1 from dual where 2 > any (select 1); > +1 > +1 > +select 1 from dual where 2 > all (select 1); > +1 > +1 > +select 1 from dual where 1 < any (select 2 from dual); > +1 > +1 > +select 1 from dual where 1 < all (select 2 from dual where 1!=1); > +1 > +1 > +create table t1 (s1 char); > +insert into t1 values (1),(2); > +select * from t1 where (s1 < any (select s1 from t1)); > +s1 > +1 > +select * from t1 where not (s1 < any (select s1 from t1)); > +s1 > +2 > +select * from t1 where (s1 < ALL (select s1+1 from t1)); > +s1 > +1 > +select * from t1 where not(s1 < ALL (select s1+1 from t1)); > +s1 > +2 > +select * from t1 where (s1+1 = ANY (select s1 from t1)); > +s1 > +1 > +select * from t1 where NOT(s1+1 = ANY (select s1 from t1)); > +s1 > +2 > +select * from t1 where (s1 = ALL (select s1/s1 from t1)); > +s1 > +1 > +select * from t1 where NOT(s1 = ALL (select s1/s1 from t1)); > +s1 > +2 > +drop table t1; > +create table t1 ( > +retailerID varchar(8) NOT NULL, > +statusID int(10) unsigned NOT NULL, > +changed datetime NOT NULL, > +UNIQUE KEY retailerID (retailerID, statusID, changed) > +); > +INSERT INTO t1 VALUES("0026", "1", "2005-12-06 12:18:56"); > +INSERT INTO t1 VALUES("0026", "2", "2006-01-06 12:25:53"); > +INSERT INTO t1 VALUES("0037", "1", "2005-12-06 12:18:56"); > +INSERT INTO t1 VALUES("0037", "2", "2006-01-06 12:25:53"); > +INSERT INTO t1 VALUES("0048", "1", "2006-01-06 12:37:50"); > +INSERT INTO t1 VALUES("0059", "1", "2006-01-06 12:37:50"); > +select * from t1 r1 > +where (r1.retailerID,(r1.changed)) in > +(SELECT r2.retailerId,(max(changed)) from t1 r2 > +group by r2.retailerId); > +retailerID statusID changed > +0026 2 2006-01-06 12:25:53 > +0037 2 2006-01-06 12:25:53 > +0048 1 2006-01-06 12:37:50 > +0059 1 2006-01-06 12:37:50 > +drop table t1; > +create table t1(a int, primary key (a)); > +insert into t1 values (10); > +create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b)); > +insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989'); > +explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 > +1 PRIMARY r const PRIMARY PRIMARY 4 const 1 > +2 DEPENDENT SUBQUERY t2 range b b 40 NULL 2 Using index condition > +SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10; > +a a b > +10 3 35989 > +explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 > +1 PRIMARY r const PRIMARY PRIMARY 4 const 1 > +2 DEPENDENT SUBQUERY t2 range b b 40 NULL 2 Using index condition > +SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10; > +a a b > +10 1 359 > +drop table t1,t2; > +CREATE TABLE t1 ( > +field1 int NOT NULL, > +field2 int NOT NULL, > +field3 int NOT NULL, > +PRIMARY KEY (field1,field2,field3) > +); > +CREATE TABLE t2 ( > +fieldA int NOT NULL, > +fieldB int NOT NULL, > +PRIMARY KEY (fieldA,fieldB) > +); > +INSERT INTO t1 VALUES > +(1,1,1), (1,1,2), (1,2,1), (1,2,2), (1,2,3), (1,3,1); > +INSERT INTO t2 VALUES (1,1), (1,2), (1,3); > +SELECT field1, field2, COUNT(*) > +FROM t1 GROUP BY field1, field2; > +field1 field2 COUNT(*) > +1 1 2 > +1 2 3 > +1 3 1 > +SELECT field1, field2 > +FROM t1 > +GROUP BY field1, field2 > +HAVING COUNT(*) >= ALL (SELECT fieldB > +FROM t2 WHERE fieldA = field1); > +field1 field2 > +1 2 > +SELECT field1, field2 > +FROM t1 > +GROUP BY field1, field2 > +HAVING COUNT(*) < ANY (SELECT fieldB > +FROM t2 WHERE fieldA = field1); > +field1 field2 > +1 1 > +1 3 > +DROP TABLE t1, t2; > +CREATE TABLE t1(a int, INDEX (a)); > +INSERT INTO t1 VALUES (1), (3), (5), (7); > +INSERT INTO t1 VALUES (NULL); > +CREATE TABLE t2(a int); > +INSERT INTO t2 VALUES (1),(2),(3); > +EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 3 > +2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 Using index; Full scan on NULL key > +SELECT a, a IN (SELECT a FROM t1) FROM t2; > +a a IN (SELECT a FROM t1) > +1 1 > +2 NULL > +3 1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a DATETIME); > +INSERT INTO t1 VALUES ('1998-09-23'), ('2003-03-25'); > +CREATE TABLE t2 AS SELECT > +(SELECT a FROM t1 WHERE a < '2000-01-01') AS sub_a > +FROM t1 WHERE a > '2000-01-01'; > +SHOW CREATE TABLE t2; > +Table Create Table > +t2 CREATE TABLE `t2` ( > + `sub_a` datetime DEFAULT NULL > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +CREATE TABLE t3 AS (SELECT a FROM t1 WHERE a < '2000-01-01') UNION (SELECT a FROM t1 WHERE a > '2000-01-01'); > +SHOW CREATE TABLE t3; > +Table Create Table > +t3 CREATE TABLE `t3` ( > + `a` datetime DEFAULT NULL > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (1), (2); > +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) > 0; > +a > +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; > +a > +1 > +2 > +EXPLAIN SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE > +DROP TABLE t1; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (2), (4), (1), (3); > +CREATE TABLE t2 (b int, c int); > +INSERT INTO t2 VALUES > +(2,1), (1,3), (2,1), (4,4), (2,2), (1,4); > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2 ); > +a > +2 > +4 > +1 > +3 > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2), a; > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1), a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 2); > +b MAX(c) > +1 4 > +2 2 > +4 4 > +SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 1); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 2), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 1), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +a > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)) > 3; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 2), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)); > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 1), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)); > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)); > +ERROR 21000: Subquery returns more than 1 row > +DROP TABLE t1,t2; > +create table t1 (df decimal(5,1)); > +insert into t1 values(1.1); > +insert into t1 values(2.2); > +select * from t1 where df <= all (select avg(df) from t1 group by df); > +df > +1.1 > +select * from t1 where df >= all (select avg(df) from t1 group by df); > +df > +2.2 > +drop table t1; > +create table t1 (df decimal(5,1)); > +insert into t1 values(1.1); > +select 1.1 * exists(select * from t1); > +1.1 * exists(select * from t1) > +1.1 > +drop table t1; > +CREATE TABLE t1 ( > +grp int(11) default NULL, > +a decimal(10,2) default NULL); > +insert into t1 values (1, 1), (2, 2), (2, 3), (3, 4), (3, 5), (3, 6), (NULL, NULL); > +select * from t1; > +grp a > +1 1.00 > +2 2.00 > +2 3.00 > +3 4.00 > +3 5.00 > +3 6.00 > +NULL NULL > +select min(a) from t1 group by grp; > +min(a) > +NULL > +1.00 > +2.00 > +4.00 > +drop table t1; > +CREATE table t1 ( c1 integer ); > +INSERT INTO t1 VALUES ( 1 ); > +INSERT INTO t1 VALUES ( 2 ); > +INSERT INTO t1 VALUES ( 3 ); > +CREATE TABLE t2 ( c2 integer ); > +INSERT INTO t2 VALUES ( 1 ); > +INSERT INTO t2 VALUES ( 4 ); > +INSERT INTO t2 VALUES ( 5 ); > +SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2 WHERE c2 IN (1); > +c1 c2 > +1 1 > +SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2 > +WHERE c2 IN ( SELECT c2 FROM t2 WHERE c2 IN ( 1 ) ); > +c1 c2 > +1 1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( c1 integer ); > +INSERT INTO t1 VALUES ( 1 ); > +INSERT INTO t1 VALUES ( 2 ); > +INSERT INTO t1 VALUES ( 3 ); > +INSERT INTO t1 VALUES ( 6 ); > +CREATE TABLE t2 ( c2 integer ); > +INSERT INTO t2 VALUES ( 1 ); > +INSERT INTO t2 VALUES ( 4 ); > +INSERT INTO t2 VALUES ( 5 ); > +INSERT INTO t2 VALUES ( 6 ); > +CREATE TABLE t3 ( c3 integer ); > +INSERT INTO t3 VALUES ( 7 ); > +INSERT INTO t3 VALUES ( 8 ); > +SELECT c1,c2 FROM t1 LEFT JOIN t2 ON c1 = c2 > +WHERE EXISTS (SELECT c3 FROM t3 WHERE c2 IS NULL ); > +c1 c2 > +2 NULL > +3 NULL > +DROP TABLE t1,t2,t3; > +CREATE TABLE `t1` ( > +`itemid` bigint(20) unsigned NOT NULL auto_increment, > +`sessionid` bigint(20) unsigned default NULL, > +`time` int(10) unsigned NOT NULL default '0', > +`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT > +NULL default '', > +`data` text collate latin1_general_ci NOT NULL, > +PRIMARY KEY (`itemid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t1` VALUES (1, 1, 1, 'D', ''); > +CREATE TABLE `t2` ( > +`sessionid` bigint(20) unsigned NOT NULL auto_increment, > +`pid` int(10) unsigned NOT NULL default '0', > +`date` int(10) unsigned NOT NULL default '0', > +`ip` varchar(15) collate latin1_general_ci NOT NULL default '', > +PRIMARY KEY (`sessionid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1'); > +SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30; > +ip count( e.itemid ) > +10.10.10.1 1 > +drop tables t1,t2; > +CREATE TABLE t1 (EMPNUM CHAR(3)); > +CREATE TABLE t2 (EMPNUM CHAR(3) ); > +INSERT INTO t1 VALUES ('E1'),('E2'); > +INSERT INTO t2 VALUES ('E1'); > +DELETE FROM t1 > +WHERE t1.EMPNUM NOT IN > +(SELECT t2.EMPNUM > +FROM t2 > +WHERE t1.EMPNUM = t2.EMPNUM); > +select * from t1; > +EMPNUM > +E1 > +DROP TABLE t1,t2; > +CREATE TABLE t1(select_id BIGINT, values_id BIGINT); > +INSERT INTO t1 VALUES (1, 1); > +CREATE TABLE t2 (select_id BIGINT, values_id BIGINT, > +PRIMARY KEY(select_id,values_id)); > +INSERT INTO t2 VALUES (0, 1), (0, 2), (0, 3), (1, 5); > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id IN (1, 0)); > +values_id > +1 > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id BETWEEN 0 AND 1); > +values_id > +1 > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id = 0 OR select_id = 1); > +values_id > +1 > +DROP TABLE t1, t2; > +create table t1 (fld enum('0','1')); > +insert into t1 values ('1'); > +select * from (select max(fld) from t1) as foo; > +max(fld) > +1 > +drop table t1; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (c int, d int); > +CREATE TABLE t3 (e int); > +INSERT INTO t1 VALUES > +(1,10), (2,10), (1,20), (2,20), (3,20), (2,30), (4,40); > +INSERT INTO t2 VALUES > +(2,10), (2,20), (4,10), (5,10), (3,20), (2,40); > +INSERT INTO t3 VALUES (10), (30), (10), (20) ; > +SELECT a, MAX(b), MIN(b) FROM t1 GROUP BY a; > +a MAX(b) MIN(b) > +1 20 10 > +2 30 10 > +3 20 20 > +4 40 40 > +SELECT * FROM t2; > +c d > +2 10 > +2 20 > +4 10 > +5 10 > +3 20 > +2 40 > +SELECT * FROM t3; > +e > +10 > +30 > +10 > +20 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>20); > +a > +2 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)<d); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>d); > +a > +2 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE d >= SOME(SELECT e FROM t3 WHERE MAX(b)=e)); > +a > +2 > +3 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d)); > +a > +2 > +3 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE d > SOME(SELECT e FROM t3 WHERE MAX(b)=e)); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e < d)); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE MIN(b) < d AND > +EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d)); > +a > +2 > +SELECT a, SUM(a) FROM t1 GROUP BY a; > +a SUM(a) > +1 2 > +2 6 > +3 3 > +4 4 > +SELECT a FROM t1 > +WHERE EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c) GROUP BY a; > +a > +3 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c); > +a > +1 > +3 > +4 > +SELECT a FROM t1 > +WHERE a < 3 AND > +EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c) GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 > +WHERE a < 3 AND > +EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c); > +a > +1 > +2 > +1 > +2 > +2 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a < ALL(SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e > +HAVING SUM(t1.a+t2.c) < t3.e/4)); > +a > +1 > +2 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a > ALL(SELECT t2.c FROM t2 > +WHERE EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e > +HAVING SUM(t1.a+t2.c) < t3.e/4)); > +a > +4 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a > ALL(SELECT t2.c FROM t2 > +WHERE EXISTS(SELECT t3.e FROM t3 > +WHERE SUM(t1.a+t2.c) < t3.e/4)); > +ERROR HY000: Invalid use of group function > +SELECT t1.a from t1 GROUP BY t1.a HAVING AVG(SUM(t1.b)) > 20; > +ERROR HY000: Invalid use of group function > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING AVG(t2.c+SUM(t1.b)) > 20); > +a > +2 > +3 > +4 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING AVG(SUM(t1.b)) > 20); > +a > +2 > +4 > +SELECT t1.a, SUM(b) AS sum FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING t2.c+sum > 20); > +a sum > +2 60 > +3 20 > +4 40 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a varchar(5), b varchar(10)); > +INSERT INTO t1 VALUES > +('AAA', 5), ('BBB', 4), ('BBB', 1), ('CCC', 2), > +('CCC', 7), ('AAA', 2), ('AAA', 4), ('BBB', 3), ('AAA', 8); > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +a b > +BBB 4 > +CCC 7 > +AAA 8 > +EXPLAIN > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary > +ALTER TABLE t1 ADD INDEX(a); > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +a b > +BBB 4 > +CCC 7 > +AAA 8 > +EXPLAIN > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where > +2 DEPENDENT SUBQUERY t1 index NULL a 8 NULL 1 > +DROP TABLE t1; > +create table t1( f1 int,f2 int); > +insert into t1 values (1,1),(2,2); > +select tt.t from (select 'crash1' as t, f2 from t1) as tt left join t1 on tt.t = 'crash2' and tt.f2 = t1.f2 where tt.t = 'crash1'; > +t > +crash1 > +crash1 > +drop table t1; > +create table t1 (c int, key(c)); > +insert into t1 values (1142477582), (1142455969); > +create table t2 (a int, b int); > +insert into t2 values (2, 1), (1, 0); > +delete from t1 where c <= 1140006215 and (select b from t2 where a = 2) = 1; > +drop table t1, t2; > +CREATE TABLE t1 (a INT); > +CREATE VIEW v1 AS SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'where clause' > +CREATE VIEW v2 AS SELECT * FROM t1 WHERE no_such_column = (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'where clause' > +SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'IN/ALL/ANY subquery' > +DROP TABLE t1; > +create table t1 (i int, j bigint); > +insert into t1 values (1, 2), (2, 2), (3, 2); > +select * from (select min(i) from t1 where j=(select * from (select min(j) from t1) t2)) t3; > +min(i) > +1 > +drop table t1; > +CREATE TABLE t1 (i BIGINT UNSIGNED); > +INSERT INTO t1 VALUES (10000000000000000000); > +INSERT INTO t1 VALUES (1); > +CREATE TABLE t2 (i BIGINT UNSIGNED); > +INSERT INTO t2 VALUES (10000000000000000000); > +INSERT INTO t2 VALUES (1); > +/* simple test */ > +SELECT t1.i FROM t1 JOIN t2 ON t1.i = t2.i; > +i > +10000000000000000000 > +1 > +/* subquery test */ > +SELECT t1.i FROM t1 WHERE t1.i = (SELECT MAX(i) FROM t2); > +i > +10000000000000000000 > +/* subquery test with cast*/ > +SELECT t1.i FROM t1 WHERE t1.i = CAST((SELECT MAX(i) FROM t2) AS UNSIGNED); > +i > +10000000000000000000 > +DROP TABLE t1; > +DROP TABLE t2; > +CREATE TABLE t1 ( > +id bigint(20) unsigned NOT NULL auto_increment, > +name varchar(255) NOT NULL, > +PRIMARY KEY (id) > +); > +INSERT INTO t1 VALUES > +(1, 'Balazs'), (2, 'Joe'), (3, 'Frank'); > +CREATE TABLE t2 ( > +id bigint(20) unsigned NOT NULL auto_increment, > +mid bigint(20) unsigned NOT NULL, > +date date NOT NULL, > +PRIMARY KEY (id) > +); > +INSERT INTO t2 VALUES > +(1, 1, '2006-03-30'), (2, 2, '2006-04-06'), (3, 3, '2006-04-13'), > +(4, 2, '2006-04-20'), (5, 1, '2006-05-01'); > +SELECT *, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 0, 1) AS date_last, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 3, 1) AS date_next_to_last > +FROM t1; > +id name date_last date_next_to_last > +1 Balazs 2006-05-01 NULL > +2 Joe 2006-04-20 NULL > +3 Frank 2006-04-13 NULL > +SELECT *, > +(SELECT COUNT(*) FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 1, 1) AS date_count > +FROM t1; > +id name date_count > +1 Balazs NULL > +2 Joe NULL > +3 Frank NULL > +SELECT *, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 0, 1) AS date_last, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 1, 1) AS date_next_to_last > +FROM t1; > +id name date_last date_next_to_last > +1 Balazs 2006-05-01 2006-03-30 > +2 Joe 2006-04-20 2006-04-06 > +3 Frank 2006-04-13 NULL > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( > +i1 int(11) NOT NULL default '0', > +i2 int(11) NOT NULL default '0', > +t datetime NOT NULL default '0000-00-00 00:00:00', > +PRIMARY KEY (i1,i2,t) > +); > +INSERT INTO t1 VALUES > +(24,1,'2005-03-03 16:31:31'),(24,1,'2005-05-27 12:40:07'), > +(24,1,'2005-05-27 12:40:08'),(24,1,'2005-05-27 12:40:10'), > +(24,1,'2005-05-27 12:40:25'),(24,1,'2005-05-27 12:40:30'), > +(24,2,'2005-03-03 13:43:05'),(24,2,'2005-03-03 16:23:31'), > +(24,2,'2005-03-03 16:31:30'),(24,2,'2005-05-27 12:37:02'), > +(24,2,'2005-05-27 12:40:06'); > +CREATE TABLE t2 ( > +i1 int(11) NOT NULL default '0', > +i2 int(11) NOT NULL default '0', > +t datetime default NULL, > +PRIMARY KEY (i1) > +); > +INSERT INTO t2 VALUES (24,1,'2006-06-20 12:29:40'); > +EXPLAIN > +SELECT * FROM t1,t2 > +WHERE t1.t = (SELECT t1.t FROM t1 > +WHERE t1.t < t2.t AND t1.i2=1 AND t2.i1=t1.i1 > +ORDER BY t1.t DESC LIMIT 1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 system NULL NULL NULL NULL 1 > +1 PRIMARY t1 index NULL PRIMARY 16 NULL 11 Using where; Using index > +2 DEPENDENT SUBQUERY t1 range PRIMARY PRIMARY 16 NULL 5 Using where; Using index > +SELECT * FROM t1,t2 > +WHERE t1.t = (SELECT t1.t FROM t1 > +WHERE t1.t < t2.t AND t1.i2=1 AND t2.i1=t1.i1 > +ORDER BY t1.t DESC LIMIT 1); > +i1 i2 t i1 i2 t > +24 1 2005-05-27 12:40:30 24 1 2006-06-20 12:29:40 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (a VARCHAR(250), b INT auto_increment, PRIMARY KEY (b)); > +insert into t1 (a) values (FLOOR(rand() * 100)); > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +SELECT a, > +(SELECT REPEAT(' ',250) FROM t1 i1 > +WHERE i1.b=t1.a ORDER BY RAND() LIMIT 1) AS a > +FROM t1 ORDER BY a LIMIT 5; > +a a > +0 NULL > +0 NULL > +0 NULL > +0 NULL > +0 NULL > +DROP TABLE t1; > +CREATE TABLE t1 (a INT, b INT); > +CREATE TABLE t2 (a INT); > +INSERT INTO t2 values (1); > +INSERT INTO t1 VALUES (1,1),(1,2),(2,3),(3,4); > +SELECT (SELECT COUNT(DISTINCT t1.b) from t2) FROM t1 GROUP BY t1.a; > +(SELECT COUNT(DISTINCT t1.b) from t2) > +2 > +1 > +1 > +SELECT (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) > +FROM t1 GROUP BY t1.a; > +(SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) > +2 > +1 > +1 > +SELECT COUNT(DISTINCT t1.b), (SELECT COUNT(DISTINCT t1.b)) FROM t1 GROUP BY t1.a; > +COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b)) > +2 2 > +1 1 > +1 1 > +SELECT COUNT(DISTINCT t1.b), > +(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) > +FROM t1 GROUP BY t1.a; > +COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) > +2 2 > +1 1 > +1 1 > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a; > +( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +2 > +1 > +1 > +SELECT ( > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a LIMIT 1) > +FROM t1 t2 > +GROUP BY t2.a; > +( > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a LIMIT 1) > +2 > +2 > +2 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int, PRIMARY KEY (b)); > +CREATE TABLE t2 (x int auto_increment, y int, z int, > +PRIMARY KEY (x), FOREIGN KEY (y) REFERENCES t1 (b)); > +create table t3 (a int); > +insert into t3 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +insert into t1 select RAND()*1000, A.a + 10*(B.a+10*(C.a+10*D.a)) > +from t3 A, t3 B, t3 C, t3 D where D.a<3; > +insert into t2(y,z) select t1.b, RAND()*1000 from t1, t3; > +SET SESSION sort_buffer_size = 32 * 1024; > +SELECT SQL_NO_CACHE COUNT(*) > +FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c > +FROM t1) t; > +COUNT(*) > +3000 > +SET SESSION sort_buffer_size = 8 * 1024 * 1024; > +SELECT SQL_NO_CACHE COUNT(*) > +FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c > +FROM t1) t; > +COUNT(*) > +3000 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (id char(4) PRIMARY KEY, c int); > +CREATE TABLE t2 (c int); > +INSERT INTO t1 VALUES ('aa', 1); > +INSERT INTO t2 VALUES (1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT c FROM t2 WHERE c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +INSERT INTO t1 VALUES ('bb', 2), ('cc', 3), ('dd',1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT c FROM t2 WHERE c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +bb 2 > +cc 3 > +dd 1 > +INSERT INTO t2 VALUES (2); > +CREATE TABLE t3 (c int); > +INSERT INTO t3 VALUES (1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT t2.c FROM t2 JOIN t3 ON t2.c=t3.c WHERE t2.c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +bb 2 > +cc 3 > +dd 1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1(f1 int); > +CREATE TABLE t2(f2 int, f21 int, f3 timestamp); > +INSERT INTO t1 VALUES (1),(1),(2),(2); > +INSERT INTO t2 VALUES (1,1,"2004-02-29 11:11:11"), (2,2,"2004-02-29 11:11:11"); > +SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1; > +sq > +2 > +4 > +SELECT (SELECT SUM(1) FROM t2 ttt GROUP BY t2.f3 LIMIT 1) AS tt FROM t2; > +tt > +2 > +2 > +PREPARE stmt1 FROM 'SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1'; > +EXECUTE stmt1; > +sq > +2 > +4 > +EXECUTE stmt1; > +sq > +2 > +4 > +DEALLOCATE PREPARE stmt1; > +SELECT f2, AVG(f21), > +(SELECT t.f3 FROM t2 AS t WHERE t2.f2=t.f2 AND t.f3=MAX(t2.f3)) AS test > +FROM t2 GROUP BY f2; > +f2 AVG(f21) test > +1 1.0000 2004-02-29 11:11:11 > +2 2.0000 2004-02-29 11:11:11 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b INT, c CHAR(10) NOT NULL); > +INSERT INTO t1 VALUES > +(1,1,'a'), (1,2,'b'), (1,3,'c'), (1,4,'d'), (1,5,'e'), > +(2,1,'f'), (2,2,'g'), (2,3,'h'), (3,4,'i'), (3,3,'j'), > +(3,2,'k'), (3,1,'l'), (1,9,'m'); > +SELECT a, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b)) AS test > +FROM t1 GROUP BY a; > +a MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +DROP TABLE t1; > +DROP TABLE IF EXISTS t1; > +DROP TABLE IF EXISTS t2; > +DROP TABLE IF EXISTS t1xt2; > +CREATE TABLE t1 ( > +id_1 int(5) NOT NULL, > +t varchar(4) DEFAULT NULL > +); > +CREATE TABLE t2 ( > +id_2 int(5) NOT NULL, > +t varchar(4) DEFAULT NULL > +); > +CREATE TABLE t1xt2 ( > +id_1 int(5) NOT NULL, > +id_2 int(5) NOT NULL > +); > +INSERT INTO t1 VALUES (1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'); > +INSERT INTO t2 VALUES (2, 'bb'), (3, 'cc'), (4, 'dd'), (12, 'aa'); > +INSERT INTO t1xt2 VALUES (2, 2), (3, 3), (4, 4); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +2 > +3 > +4 > +insert INTO t1xt2 VALUES (1, 12); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +2 > +3 > +4 > +insert INTO t1xt2 VALUES (2, 12); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +3 > +4 > +DROP TABLE t1; > +DROP TABLE t2; > +DROP TABLE t1xt2; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (3), (1), (2); > +SELECT 'this is ' 'a test.' AS col1, a AS col2 FROM t1; > +col1 col2 > +this is a test. 3 > +this is a test. 1 > +this is a test. 2 > +SELECT * FROM (SELECT 'this is ' 'a test.' AS col1, a AS t2 FROM t1) t; > +col1 t2 > +this is a test. 3 > +this is a test. 1 > +this is a test. 2 > +DROP table t1; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (m int, n int); > +INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4); > +INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44); > +SELECT COUNT(*), a, > +(SELECT m FROM t2 WHERE m = count(*) LIMIT 1) > +FROM t1 GROUP BY a; > +COUNT(*) a (SELECT m FROM t2 WHERE m = count(*) LIMIT 1) > +2 2 2 > +3 3 3 > +1 4 1 > +SELECT COUNT(*), a, > +(SELECT MIN(m) FROM t2 WHERE m = count(*)) > +FROM t1 GROUP BY a; > +COUNT(*) a (SELECT MIN(m) FROM t2 WHERE m = count(*)) > +2 2 2 > +3 3 3 > +1 4 1 > +SELECT COUNT(*), a > +FROM t1 GROUP BY a > +HAVING (SELECT MIN(m) FROM t2 WHERE m = count(*)) > 1; > +COUNT(*) a > +2 2 > +3 3 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (m int, n int); > +INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4); > +INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44); > +SELECT COUNT(*) c, a, > +(SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a) > +FROM t1 GROUP BY a; > +c a (SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a) > +2 2 2 > +3 3 3 > +1 4 1,1 > +SELECT COUNT(*) c, a, > +(SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a) > +FROM t1 GROUP BY a; > +c a (SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a) > +2 2 3 > +3 3 4 > +1 4 2,2 > +DROP table t1,t2; > +CREATE TABLE t1 (a int, b INT, d INT, c CHAR(10) NOT NULL, PRIMARY KEY (a, b)); > +INSERT INTO t1 VALUES (1,1,0,'a'), (1,2,0,'b'), (1,3,0,'c'), (1,4,0,'d'), > +(1,5,0,'e'), (2,1,0,'f'), (2,2,0,'g'), (2,3,0,'h'), (3,4,0,'i'), (3,3,0,'j'), > +(3,2,0,'k'), (3,1,0,'l'), (1,9,0,'m'), (1,0,10,'n'), (2,0,5,'o'), (3,0,7,'p'); > +SELECT a, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b + 0)) as test > +FROM t1 GROUP BY a; > +a MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +SELECT a x, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE x=t.a AND t.b=MAX(t1.b + 0)) as test > +FROM t1 GROUP BY a; > +x MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +SELECT a, AVG(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=AVG(t1.b)) AS test > +FROM t1 WHERE t1.d=0 GROUP BY a; > +a AVG(b) test > +1 4.0000 d > +2 2.0000 g > +3 2.5000 NULL > +SELECT tt.a, > +(SELECT (SELECT c FROM t1 as t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test > +FROM t1 as tt; > +a test > +1 n > +1 n > +1 n > +1 n > +1 n > +1 n > +1 n > +2 o > +2 o > +2 o > +2 o > +3 p > +3 p > +3 p > +3 p > +3 p > +SELECT tt.a, > +(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) > +FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test > +FROM t1 as tt GROUP BY tt.a; > +a test > +1 n > +2 o > +3 p > +SELECT tt.a, MAX( > +(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) > +FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1)) as test > +FROM t1 as tt GROUP BY tt.a; > +a test > +1 n > +2 o > +3 p > +DROP TABLE t1; > +CREATE TABLE t1 (a int, b int); > +INSERT INTO t1 VALUES (2,22),(1,11),(2,22); > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +a > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +a > +1 > +2 > +SET @@sql_mode='ansi'; > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +ERROR HY000: Invalid use of group function > +SET @@sql_mode=default; > +DROP TABLE t1; > +CREATE TABLE t1 (a INT); > +INSERT INTO t1 values (1),(1),(1),(1); > +CREATE TABLE t2 (x INT); > +INSERT INTO t1 values (1000),(1001),(1002); > +SELECT SUM( (SELECT COUNT(a) FROM t2) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT SUM( (SELECT SUM(COUNT(a)) FROM t2) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT COUNT(1) FROM DUAL; > +COUNT(1) > +1 > +SELECT SUM( (SELECT AVG( (SELECT t1.a FROM t2) ) FROM DUAL) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT > +SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING t1.a < 12) ) FROM t2) ) > +FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT t1.a as XXA, > +SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING XXA < 12) ) FROM t2) ) > +FROM t1; > +ERROR HY000: Invalid use of group function > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int, KEY (a)); > +INSERT INTO t1 VALUES (1,1),(2,1); > +EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT COUNT(*) FROM t1 GROUP BY b); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ref a a 5 const 0 Using where; Using index > +2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort > +DROP TABLE t1; > +CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id)); > +INSERT INTO t1 VALUES > +(3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY'); > +CREATE TABLE t2 (id int NOT NULL, INDEX idx(id)); > +INSERT INTO t2 VALUES (7), (5), (1), (3); > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id); > +id st > +3 FL > +1 GA > +7 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id) > +GROUP BY id; > +id st > +1 GA > +3 FL > +7 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id); > +id st > +2 GA > +4 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id) > +GROUP BY id; > +id st > +2 GA > +4 FL > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (1), (2); > +EXPLAIN EXTENDED > +SELECT * FROM (SELECT count(*) FROM t1 GROUP BY a) as res; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 > +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort > +Warnings: > +Note 1003 select `res`.`count(*)` AS `count(*)` from (select count(0) AS `count(*)` from `test`.`t1` group by `test`.`t1`.`a`) `res` > +DROP TABLE t1; > +CREATE TABLE t1 ( > +a varchar(255) default NULL, > +b timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP, > +INDEX idx(a,b) > +); > +CREATE TABLE t2 ( > +a varchar(255) default NULL > +); > +INSERT INTO t1 VALUES ('abcdefghijk','2007-05-07 06:00:24'); > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO `t1` VALUES ('asdf','2007-02-08 01:11:26'); > +INSERT INTO `t2` VALUES ('abcdefghijk'); > +INSERT INTO `t2` VALUES ('asdf'); > +SET session sort_buffer_size=8192; > +SELECT (SELECT 1 FROM t1 WHERE t1.a=t2.a ORDER BY t1.b LIMIT 1) AS d1 FROM t2; > +d1 > +1 > +1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INTEGER, b INTEGER); > +CREATE TABLE t2 (x INTEGER); > +INSERT INTO t1 VALUES (1,11), (2,22), (2,22); > +INSERT INTO t2 VALUES (1), (2); > +SELECT a, COUNT(b), (SELECT COUNT(b) FROM t2) FROM t1 GROUP BY a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a, COUNT(b), (SELECT COUNT(b)+0 FROM t2) FROM t1 GROUP BY a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT (SELECT SUM(t1.a)/AVG(t2.x) FROM t2) FROM t1; > +(SELECT SUM(t1.a)/AVG(t2.x) FROM t2) > +3.3333 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INT, b INT); > +INSERT INTO t1 VALUES (1, 2), (1,3), (1,4), (2,1), (2,2); > +SELECT a1.a, COUNT(*) FROM t1 a1 WHERE a1.a = 1 > +AND EXISTS( SELECT a2.a FROM t1 a2 WHERE a2.a = a1.a) > +GROUP BY a1.a; > +a COUNT(*) > +1 3 > +DROP TABLE t1; > +CREATE TABLE t1 (a INT); > +CREATE TABLE t2 (a INT); > +INSERT INTO t1 VALUES (1),(2); > +INSERT INTO t2 VALUES (1),(2); > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=0) FROM t1; > +(SELECT SUM(t1.a) FROM t2 WHERE a=0) > +NULL > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a!=0) FROM t1; > +ERROR 21000: Subquery returns more than 1 row > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=1) FROM t1; > +(SELECT SUM(t1.a) FROM t2 WHERE a=1) > +3 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a1 INT, a2 INT); > +CREATE TABLE t2 (b1 INT, b2 INT); > +INSERT INTO t1 VALUES (100, 200); > +INSERT INTO t1 VALUES (101, 201); > +INSERT INTO t2 VALUES (101, 201); > +INSERT INTO t2 VALUES (103, 203); > +SELECT ((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL FROM t1; > +((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL > +0 > +0 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (s1 BINARY(5), s2 VARBINARY(5)); > +INSERT INTO t1 VALUES (0x41,0x41), (0x42,0x42), (0x43,0x43); > +SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1); > +s1 s2 > +SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1); > +s1 s2 > +CREATE INDEX I1 ON t1 (s1); > +CREATE INDEX I2 ON t1 (s2); > +SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1); > +s1 s2 > +SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1); > +s1 s2 > +TRUNCATE t1; > +INSERT INTO t1 VALUES (0x41,0x41); > +SELECT * FROM t1 WHERE s1 = (SELECT s2 FROM t1); > +s1 s2 > +DROP TABLE t1; > +CREATE TABLE t1 (a1 VARBINARY(2) NOT NULL DEFAULT '0', PRIMARY KEY (a1)); > +CREATE TABLE t2 (a2 BINARY(2) default '0', INDEX (a2)); > +CREATE TABLE t3 (a3 BINARY(2) default '0'); > +INSERT INTO t1 VALUES (1),(2),(3),(4); > +INSERT INTO t2 VALUES (1),(2),(3); > +INSERT INTO t3 VALUES (1),(2),(3); > +SELECT LEFT(t2.a2, 1) FROM t2,t3 WHERE t3.a3=t2.a2; > +LEFT(t2.a2, 1) > +1 > +2 > +3 > +SELECT t1.a1, t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2) FROM t1; > +a1 t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2) > +1 0 > +2 0 > +3 0 > +4 0 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a1 BINARY(3) PRIMARY KEY, b1 VARBINARY(3)); > +CREATE TABLE t2 (a2 VARBINARY(3) PRIMARY KEY); > +CREATE TABLE t3 (a3 VARBINARY(3) PRIMARY KEY); > +INSERT INTO t1 VALUES (1,10), (2,20), (3,30), (4,40); > +INSERT INTO t2 VALUES (2), (3), (4), (5); > +INSERT INTO t3 VALUES (10), (20), (30); > +SELECT LEFT(t1.a1,1) FROM t1,t3 WHERE t1.b1=t3.a3; > +LEFT(t1.a1,1) > +1 > +2 > +3 > +SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3); > +a2 > +DROP TABLE t1, t2, t3; > +CREATE TABLE t1 (a CHAR(1), b VARCHAR(10)); > +INSERT INTO t1 VALUES ('a', 'aa'); > +INSERT INTO t1 VALUES ('a', 'aaa'); > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +a b > +CREATE INDEX I1 ON t1 (a); > +CREATE INDEX I2 ON t1 (b); > +EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +a b > +CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10)); > +INSERT INTO t2 SELECT * FROM t1; > +CREATE INDEX I1 ON t2 (a); > +CREATE INDEX I2 ON t2 (b); > +EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t2 ref I1 I1 4 test.t2.b 2 Using where; Using index; FirstMatch(t2) > +SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); > +a b > +EXPLAIN > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); > +a b > +DROP TABLE t1,t2; > +CREATE TABLE t1(a INT, b INT); > +INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4); > +EXPLAIN > +SELECT a AS out_a, MIN(b) FROM t1 > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a) > +GROUP BY a; > +ERROR 42S22: Unknown column 'out_a' in 'where clause' > +SELECT a AS out_a, MIN(b) FROM t1 > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a) > +GROUP BY a; > +ERROR 42S22: Unknown column 'out_a' in 'where clause' > +EXPLAIN > +SELECT a AS out_a, MIN(b) FROM t1 t1_outer > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a) > +GROUP BY a; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1_outer ALL NULL NULL NULL NULL 4 Using where; Using temporary; Using filesort > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 4 Using where > +SELECT a AS out_a, MIN(b) FROM t1 t1_outer > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a) > +GROUP BY a; > +out_a MIN(b) > +1 2 > +2 4 > +DROP TABLE t1; > +create table t0(a int); > +insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +create table t1(f11 int, f12 int); > +create table t2(f21 int unsigned not null, f22 int, f23 varchar(10)); > +insert into t1 values(1,1),(2,2), (3, 3); > +insert into t2 > +select -1 , (@a:=(A.a + 10 * (B.a + 10 * (C.a+10*D.a))))/5000 + 1, @a > +from t0 A, t0 B, t0 C, t0 D; > +set session sort_buffer_size= 33*1024; > +select count(*) from t1 where f12 = > +(select f22 from t2 where f22 = f12 order by f21 desc, f22, f23 limit 1); > +count(*) > +3 > +drop table t0,t1,t2; > +CREATE TABLE t4 ( > +f7 varchar(32) collate utf8_bin NOT NULL default '', > +f10 varchar(32) collate utf8_bin default NULL, > +PRIMARY KEY (f7) > +); > +INSERT INTO t4 VALUES(1,1), (2,null); > +CREATE TABLE t2 ( > +f4 varchar(32) collate utf8_bin NOT NULL default '', > +f2 varchar(50) collate utf8_bin default NULL, > +f3 varchar(10) collate utf8_bin default NULL, > +PRIMARY KEY (f4), > +UNIQUE KEY uk1 (f2) > +); > +INSERT INTO t2 VALUES(1,1,null), (2,2,null); > +CREATE TABLE t1 ( > +f8 varchar(32) collate utf8_bin NOT NULL default '', > +f1 varchar(10) collate utf8_bin default NULL, > +f9 varchar(32) collate utf8_bin default NULL, > +PRIMARY KEY (f8) > +); > +INSERT INTO t1 VALUES (1,'P',1), (2,'P',1), (3,'R',2); > +CREATE TABLE t3 ( > +f6 varchar(32) collate utf8_bin NOT NULL default '', > +f5 varchar(50) collate utf8_bin default NULL, > +PRIMARY KEY (f6) > +); > +INSERT INTO t3 VALUES (1,null), (2,null); > +SELECT > +IF(t1.f1 = 'R', a1.f2, t2.f2) AS a4, > +IF(t1.f1 = 'R', a1.f3, t2.f3) AS f3, > +SUM( > +IF( > +(SELECT VPC.f2 > +FROM t2 VPC, t4 a2, t2 a3 > +WHERE > +VPC.f4 = a2.f10 AND a3.f2 = a4 > +LIMIT 1) IS NULL, > +0, > +t3.f5 > +) > +) AS a6 > +FROM > +t2, t3, t1 JOIN t2 a1 ON t1.f9 = a1.f4 > +GROUP BY a4; > +a4 f3 a6 > +1 NULL NULL > +2 NULL NULL > +DROP TABLE t1, t2, t3, t4; > +create table t1 (a float(5,4) zerofill); > +create table t2 (a float(5,4),b float(2,0)); > +select t1.a from t1 where > +t1.a= (select b from t2 limit 1) and not > +t1.a= (select a from t2 limit 1) ; > +a > +drop table t1, t2; > +CREATE TABLE t1 (a INT); > +INSERT INTO t1 VALUES (1),(2); > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > +DROP TABLE t1; > +# > +# Bug#45061: Incorrectly market field caused wrong result. > +# > +CREATE TABLE `C` ( > +`int_nokey` int(11) NOT NULL, > +`int_key` int(11) NOT NULL, > +KEY `int_key` (`int_key`) > +); > +INSERT INTO `C` VALUES (9,9), (0,0), (8,6), (3,6), (7,6), (0,4), > +(1,7), (9,4), (0,8), (9,4), (0,7), (5,5), (0,0), (8,5), (8,7), > +(5,2), (1,8), (7,0), (0,9), (9,5); > +SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); > +int_nokey int_key > +9 9 > +0 0 > +5 5 > +0 0 > +EXPLAIN EXTENDED SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY C ALL NULL NULL NULL NULL 20 100.00 Using where > +DROP TABLE C; > +# End of test for bug#45061. > +# > +# Bug #46749: Segfault in add_key_fields() with outer subquery level > +# field references > +# > +CREATE TABLE t1 ( > +a int, > +b int, > +UNIQUE (a), KEY (b) > +); > +INSERT INTO t1 VALUES (1,1), (2,1); > +CREATE TABLE st1 like t1; > +INSERT INTO st1 VALUES (1,1), (2,1); > +CREATE TABLE st2 like t1; > +INSERT INTO st2 VALUES (1,1), (2,1); > +EXPLAIN > +SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +FROM t1 > +WHERE a = 230; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +FROM t1 > +WHERE a = 230; > +MAX(b) (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +NULL 0 > +DROP TABLE t1, st1, st2; > +# > +# Bug #48709: Assertion failed in sql_select.cc:11782: > +# int join_read_key(JOIN_TAB*) > +# > +CREATE TABLE t1 (pk int PRIMARY KEY, int_key int); > +INSERT INTO t1 VALUES (10,1), (14,1); > +CREATE TABLE t2 (pk int PRIMARY KEY, int_key int); > +INSERT INTO t2 VALUES (3,3), (5,NULL), (7,3); > +# should have eq_ref for t1 > +EXPLAIN > +SELECT * FROM t2 outr > +WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2) > +ORDER BY outr.pk; > +id select_type table type possible_keys key key_len ref rows Extra > +x x outr ALL x x x x x x > +x x t1 eq_ref x x x x x x > +x x t2 index x x x x x x > +# should not crash on debug binaries > +SELECT * FROM t2 outr > +WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2) > +ORDER BY outr.pk; > +pk int_key > +3 3 > +7 3 > +DROP TABLE t1,t2; > +End of 5.0 tests. > +create table t_out (subcase char(3), > +a1 char(2), b1 char(2), c1 char(2)); > +create table t_in (a2 char(2), b2 char(2), c2 char(2)); > +insert into t_out values ('A.1','2a', NULL, '2a'); > +insert into t_out values ('A.3', '2a', NULL, '2a'); > +insert into t_out values ('A.4', '2a', NULL, 'xx'); > +insert into t_out values ('B.1', '2a', '2a', '2a'); > +insert into t_out values ('B.2', '2a', '2a', '2a'); > +insert into t_out values ('B.3', '3a', 'xx', '3a'); > +insert into t_out values ('B.4', 'xx', '3a', '3a'); > +insert into t_in values ('1a', '1a', '1a'); > +insert into t_in values ('2a', '2a', '2a'); > +insert into t_in values (NULL, '2a', '2a'); > +insert into t_in values ('3a', NULL, '3a'); > + > +Test general IN semantics (not top-level) > + > +case A.1 > +select subcase, > +(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in, > +(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in > +from t_out where subcase = 'A.1'; > +subcase pred_in pred_not_in > +A.1 0 1 > +case A.2 - impossible > +case A.3 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'A.3'; > +subcase pred_in pred_not_in > +A.3 NULL NULL > +case A.4 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'A.4'; > +subcase pred_in pred_not_in > +A.4 0 1 > +case B.1 > +select subcase, > +(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in, > +(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in > +from t_out where subcase = 'B.1'; > +subcase pred_in pred_not_in > +B.1 0 1 > +case B.2 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.2'; > +subcase pred_in pred_not_in > +B.2 1 0 > +case B.3 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.3'; > +subcase pred_in pred_not_in > +B.3 NULL NULL > +case B.4 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.4'; > +subcase pred_in pred_not_in > +B.4 0 1 > + > +Test IN as top-level predicate, and > +as non-top level for cases A.3, B.3 (the only cases with NULL result). > + > +case A.1 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.1' and > +(a1, b1, c1) IN (select * from t_in where a1 = 'no_match'); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.1' and > +(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match'); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.1' and > +NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match')); > +not_pred_in > +T > +case A.3 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.3' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.3' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.3' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out > +where subcase = 'A.3' and > +((a1, b1, c1) IN (select * from t_in)) is NULL and > +((a1, b1, c1) NOT IN (select * from t_in)) is NULL; > +pred_in > +N > +case A.4 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.4' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.4' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.4' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +T > +case B.1 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.1' and > +(a1, b1, c1) IN (select * from t_in where a1 = 'no_match'); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.1' and > +(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match'); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.1' and > +NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match')); > +not_pred_in > +T > +case B.2 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.2' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.2' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.2' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +case B.3 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.3' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.3' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.3' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out > +where subcase = 'B.3' and > +((a1, b1, c1) IN (select * from t_in)) is NULL and > +((a1, b1, c1) NOT IN (select * from t_in)) is NULL; > +pred_in > +N > +case B.4 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.4' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.4' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.4' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +T > +drop table t_out; > +drop table t_in; > +CREATE TABLE t1 (a INT, b INT); > +INSERT INTO t1 VALUES (2,22),(1,11),(2,22); > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +a > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +a > +1 > +2 > +SET @@sql_mode='ansi'; > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +ERROR HY000: Invalid use of group function > +SET @@sql_mode=default; > +DROP TABLE t1; > +CREATE TABLE t1 (s1 CHAR(1)); > +INSERT INTO t1 VALUES ('a'); > +SELECT * FROM t1 WHERE _utf8'a' = ANY (SELECT s1 FROM t1); > +s1 > +a > +DROP TABLE t1; > +CREATE TABLE t1(c INT, KEY(c)); > +CREATE TABLE t2(a INT, b INT); > +INSERT INTO t2 VALUES (1, 10), (2, NULL); > +INSERT INTO t1 VALUES (1), (3); > +SELECT * FROM t2 WHERE b NOT IN (SELECT max(t.c) FROM t1, t1 t WHERE t.c>10); > +a b > +DROP TABLE t1,t2; > +CREATE TABLE t1(pk INT PRIMARY KEY, a INT, INDEX idx(a)); > +INSERT INTO t1 VALUES (1, 10), (3, 30), (2, 20); > +CREATE TABLE t2(pk INT PRIMARY KEY, a INT, b INT, INDEX idxa(a)); > +INSERT INTO t2 VALUES (2, 20, 700), (1, 10, 200), (4, 10, 100); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b); > +pk a > +1 10 > +3 30 > +2 20 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b)); > +INSERT INTO t1 VALUES (1,NULL), (9,NULL); > +CREATE TABLE t2 ( > +a INT, > +b INT, > +c INT, > +d INT, > +PRIMARY KEY (a), > +UNIQUE KEY b (b,c,d), > +KEY b_2 (b), > +KEY c (c), > +KEY d (d) > +); > +INSERT INTO t2 VALUES > +(43, 2, 11 ,30), > +(44, 2, 12 ,30), > +(45, 1, 1 ,10000), > +(46, 1, 2 ,10000), > +(556,1, 32 ,10000); > +CREATE TABLE t3 ( > +a INT, > +b INT, > +c INT, > +PRIMARY KEY (a), > +UNIQUE KEY b (b,c), > +KEY c (c), > +KEY b_2 (b) > +); > +INSERT INTO t3 VALUES (1,1,1), (2,32,1); > +explain > +SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 index PRIMARY PRIMARY 4 NULL 2 Using index > +1 PRIMARY t3 ref b,b_2 b 5 test.t1.a 1 Using index > +2 DEPENDENT SUBQUERY t2 ref b,b_2,c b 10 test.t3.c,test.t1.a 1 Using where; Using index; Using filesort > +SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a; > +a incorrect > +1 1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (id int); > +CREATE TABLE t2 (id int, c int); > +INSERT INTO t1 (id) VALUES (1); > +INSERT INTO t2 (id) VALUES (1); > +INSERT INTO t1 (id) VALUES (1); > +INSERT INTO t2 (id) VALUES (1); > +CREATE VIEW v1 AS > +SELECT t2.c AS c FROM t1, t2 > +WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +UPDATE v1 SET c=1; > +CREATE VIEW v2 (a,b) AS > +SELECT t2.id, t2.c AS c FROM t1, t2 > +WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +INSERT INTO v2(a,b) VALUES (2,2); > +ERROR HY000: CHECK OPTION failed 'test.v2' > +SELECT * FROM v1; > +c > +1 > +1 > +1 > +1 > +CREATE VIEW v3 AS > +SELECT t2.c AS c FROM t2 > +WHERE 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +DELETE FROM v3; > +DROP VIEW v1,v2,v3; > +DROP TABLE t1,t2; > +# > +# BUG#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result > +# > +create table t1(id integer primary key, g integer, v integer, s char(1)); > +create table t2(id integer primary key, g integer, v integer, s char(1)); > +insert into t1 values > +(10, 10, 10, 'l'), > +(20, 20, 20, 'l'), > +(40, 40, 40, 'l'), > +(41, 40, null, 'l'), > +(50, 50, 50, 'l'), > +(51, 50, null, 'l'), > +(60, 60, 60, 'l'), > +(61, 60, null, 'l'), > +(70, 70, 70, 'l'), > +(90, 90, null, 'l'); > +insert into t2 values > +(10, 10, 10, 'r'), > +(30, 30, 30, 'r'), > +(50, 50, 50, 'r'), > +(60, 60, 60, 'r'), > +(61, 60, null, 'r'), > +(70, 70, 70, 'r'), > +(71, 70, null, 'r'), > +(80, 80, 80, 'r'), > +(81, 80, null, 'r'), > +(100,100,null, 'r'); > +select * > +from t1 > +where v in(select v > +from t2 > +where t1.g=t2.g) is unknown; > +id g v s > +51 50 NULL l > +61 60 NULL l > +drop table t1, t2; > +# > +# Bug#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result > +# > +create table t1(id integer primary key, g integer, v integer, s char(1)); > +create table t2(id integer primary key, g integer, v integer, s char(1)); > +insert into t1 values > +(10, 10, 10, 'l'), > +(20, 20, 20, 'l'), > +(40, 40, 40, 'l'), > +(41, 40, null, 'l'), > +(50, 50, 50, 'l'), > +(51, 50, null, 'l'), > +(60, 60, 60, 'l'), > +(61, 60, null, 'l'), > +(70, 70, 70, 'l'), > +(90, 90, null, 'l'); > +insert into t2 values > +(10, 10, 10, 'r'), > +(30, 30, 30, 'r'), > +(50, 50, 50, 'r'), > +(60, 60, 60, 'r'), > +(61, 60, null, 'r'), > +(70, 70, 70, 'r'), > +(71, 70, null, 'r'), > +(80, 80, 80, 'r'), > +(81, 80, null, 'r'), > +(100,100,null, 'r'); > +select * > +from t1 > +where v in(select v > +from t2 > +where t1.g=t2.g) is unknown; > +id g v s > +51 50 NULL l > +61 60 NULL l > +drop table t1, t2; > +CREATE TABLE t1 (a ENUM('rainbow')); > +INSERT INTO t1 VALUES (),(),(),(),(); > +SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID())); > +1 > +1 > +DROP TABLE t1; > +CREATE TABLE t1 (a LONGBLOB); > +INSERT INTO t1 SET a = 'aaaa'; > +INSERT INTO t1 SET a = 'aaaa'; > +SELECT 1 FROM t1 GROUP BY > +(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1); > +1 > +1 > +DROP TABLE t1; > +# > +# Bug #49512 : subquery with aggregate function crash > +# subselect_single_select_engine::exec() > +CREATE TABLE t1(a INT); > +INSERT INTO t1 VALUES(); > +# should not crash > +SELECT 1 FROM t1 WHERE a <> SOME > +( > +SELECT MAX((SELECT a FROM t1 LIMIT 1)) AS d > +FROM t1,t1 a > +); > +1 > +DROP TABLE t1; > +# > +# Bug #45989 take 2 : memory leak after explain encounters an > +# error in the query > +# > +CREATE TABLE t1(a LONGTEXT); > +INSERT INTO t1 VALUES (repeat('a',@@global.max_allowed_packet)); > +INSERT INTO t1 VALUES (repeat('b',@@global.max_allowed_packet)); > +EXPLAIN EXTENDED SELECT DISTINCT 1 FROM t1, > +(SELECT DISTINCTROW a AS away FROM t1 GROUP BY a WITH ROLLUP) AS d1 > +WHERE t1.a = d1.a; > +ERROR 42S22: Unknown column 'd1.a' in 'where clause' > +DROP TABLE t1; > +End of 5.1 tests. > +Set up test tables. > +CREATE TABLE t1 ( > +t1_id INT UNSIGNED, > +PRIMARY KEY(t1_id) > +) Engine=MyISAM; > +INSERT INTO t1 (t1_id) VALUES (1), (2), (3), (4), (5); > +CREATE TABLE t2 SELECT * FROM t1; > +CREATE TABLE t3 ( > +t3_id INT UNSIGNED AUTO_INCREMENT, > +t1_id INT UNSIGNED, > +amount DECIMAL(16,2), > +PRIMARY KEY(t3_id), > +KEY(t1_id) > +) Engine=MyISAM; > +INSERT INTO t3 (t1_id, t3_id, amount) > +VALUES (1, 1, 100.00), (2, 2, 200.00), (4, 4, 400.00); > +This is the 'inner query' running by itself. > +Produces correct results. > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +SELECT * FROM (the same inner query) > +Produces correct results. > +SELECT * FROM ( > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +) AS t; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +Now make t2.t1_id part of a key. > +ALTER TABLE t2 ADD PRIMARY KEY(t1_id); > +Same inner query by itself. > +Still correct results. > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +SELECT * FROM (the same inner query), now with indexes on the LEFT JOIN > +SELECT * FROM ( > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +) AS t; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +DROP TABLE t3; > +DROP TABLE t2; > +DROP TABLE t1; > +# > +# Bug #52711: Segfault when doing EXPLAIN SELECT with > +# union...order by (select... where...) > +# > +CREATE TABLE t1 (a VARCHAR(10), FULLTEXT KEY a (a)); > +INSERT INTO t1 VALUES (1),(2); > +CREATE TABLE t2 (b INT); > +INSERT INTO t2 VALUES (1),(2); > +# Should not crash > +EXPLAIN > +SELECT * FROM t2 UNION SELECT * FROM t2 > +ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE)); > +# Should not crash > +SELECT * FROM t2 UNION SELECT * FROM t2 > +ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE)); > +DROP TABLE t1,t2; > +# LP BUG#675248 - select->prep_where references on freed memory > +CREATE TABLE t1 (a int, b int); > +insert into t1 values (1,1),(0,0); > +CREATE TABLE t2 (c int); > +insert into t2 values (1),(2); > +prepare stmt1 from "select sum(a),(select sum(c) from t2 where table1.b) as sub > +from t1 as table1 group by sub"; > +execute stmt1; > +sum(a) sub > +0 NULL > +1 3 > +deallocate prepare stmt1; > +prepare stmt1 from "select sum(a),(select sum(c) from t2 having table1.b) as sub > +from t1 as table1"; > +execute stmt1; > +sum(a) sub > +1 3 > +deallocate prepare stmt1; > +drop table t1,t2; > +# > +# Bug LP#693935/#58727: Assertion failure with > +# a single row subquery returning more than one row > +# > +create table t1 (a char(1) charset utf8); > +insert into t1 values ('a'), ('b'); > +create table t2 (a binary(1)); > +insert into t2 values ('x'), ('y'); > +select * from t2 where a=(select a from t1) and a='x'; > +ERROR 21000: Subquery returns more than 1 row > +drop table t1,t2; > +End of 5.1 tests > +# > +# No BUG#, a case brought from 5.2's innodb_mysql_lock.test > +# > +create table t1 (i int not null primary key); > +insert into t1 values (1),(2),(3),(4),(5); > +create table t2 (j int not null primary key); > +insert into t2 values (1),(2),(3),(4),(5); > +create table t3 (k int not null primary key); > +insert into t3 values (1),(2),(3); > +create view v2 as select t2.j as j from t2 where t2.j in (select t1.i from t1); > +select * from t3 where k in (select j from v2); > +k > +1 > +2 > +3 > +drop table t1,t2,t3; > +drop view v2; > +# > +# Bug#52068: Optimizer generates invalid semijoin materialization plan > +# > +drop table if exists ot1, ot2, it1, it2; > +CREATE TABLE ot1(a INTEGER); > +INSERT INTO ot1 VALUES(5), (8); > +CREATE TABLE it2(a INTEGER); > +INSERT INTO it2 VALUES(9), (5), (1), (8); > +CREATE TABLE it3(a INTEGER); > +INSERT INTO it3 VALUES(7), (1), (0), (5), (1), (4); > +CREATE TABLE ot4(a INTEGER); > +INSERT INTO ot4 VALUES(1), (3), (5), (7), (9), (7), (3), (1); > +SELECT * FROM ot1,ot4 > +WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a > +FROM it2,it3); > +a a > +5 1 > +8 1 > +5 5 > +8 5 > +5 7 > +8 7 > +5 7 > +8 7 > +5 1 > +8 1 > +explain SELECT * FROM ot1,ot4 > +WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a > +FROM it2,it3); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY ot1 ALL NULL NULL NULL NULL 2 Start temporary > +1 PRIMARY it2 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) > +1 PRIMARY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) > +1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; End temporary; Using join buffer (flat, BNL join) > +DROP TABLE IF EXISTS ot1, ot4, it2, it3; > +# > +# Bug#729039: NULL keys used to evaluate subquery > +# > +CREATE TABLE t1 (a int) ; > +INSERT INTO t1 VALUES (NULL), (1), (NULL), (2); > +CREATE TABLE t2 (a int, INDEX idx(a)) ; > +INSERT INTO t2 VALUES (NULL), (1), (NULL); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 USE INDEX () WHERE t2.a = t1.a); > +a > +1 > +EXPLAIN > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 USE INDEX() WHERE t2.a = t1.a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 Using where > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); > +a > +1 > +EXPLAIN > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where > +2 DEPENDENT SUBQUERY t2 ref idx idx 5 test.t1.a 2 Using index > +DROP TABLE t1,t2; > +# > +# BUG#752992: Wrong results for a subquery with 'semijoin=on' > +# > +CREATE TABLE t1 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL); > +INSERT INTO t1 VALUES (11,0); > +INSERT INTO t1 VALUES (12,5); > +INSERT INTO t1 VALUES (15,0); > +CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL); > +INSERT INTO t2 VALUES (11,1); > +INSERT INTO t2 VALUES (12,2); > +INSERT INTO t2 VALUES (15,4); > +EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3 Start temporary > +1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join) > +1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index; End temporary > +SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); > +pk i > +11 0 > +12 5 > +15 0 > +DROP table t1,t2; > +# > +# Bug#751350: crash with pushed condition for outer references when > +# there should be none of such conditions > +# > +CREATE TABLE t1 (a int, b int) ; > +INSERT INTO t1 VALUES (0,0),(0,0); > +EXPLAIN > +SELECT b FROM t1 > +WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) > +GROUP BY b; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary > +SELECT b FROM t1 > +WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) > +GROUP BY b; > +b > +0 > +DROP TABLE t1; > +# > +# Bug #11765713 58705: > +# OPTIMIZER LET ENGINE DEPEND ON UNINITIALIZED VALUES > +# CREATED BY OPT_SUM_QUERY > +# > +CREATE TABLE t1(a INT NOT NULL, KEY (a)); > +INSERT INTO t1 VALUES (0), (1); > +SELECT 1 as foo FROM t1 WHERE a < SOME > +(SELECT a FROM t1 WHERE a <=> > +(SELECT a FROM t1) > +); > +ERROR 21000: Subquery returns more than 1 row > +SELECT 1 as foo FROM t1 WHERE a < SOME > +(SELECT a FROM t1 WHERE a <=> > +(SELECT a FROM t1 where a is null) > +); > +foo > +DROP TABLE t1; > +# > +# BUG#779885: Crash in eliminate_item_equal with materialization=on in > +# maria-5.3 > +# > +CREATE TABLE t1 ( f1 int ); > +INSERT INTO t1 VALUES (19), (20); > +CREATE TABLE t2 ( f10 varchar(32) ); > +INSERT INTO t2 VALUES ('c'),('d'); > +CREATE TABLE t3 ( f10 varchar(32) ); > +INSERT INTO t3 VALUES ('a'),('b'); > +SELECT * > +FROM t1 > +WHERE > +( 't' ) IN ( > +SELECT t3.f10 > +FROM t3 > +JOIN t2 > +ON t2.f10 = t3.f10 > +); > +f1 > +DROP TABLE t1,t2,t3; > +End of 5.3 tests > +set optimizer_switch=@subselect_tmp; > +set optimizer_switch=default; > +select @@optimizer_switch like '%subquery_cache=on%'; > +@@optimizer_switch like '%subquery_cache=on%' > +0 > > === modified file 'mysql-test/r/subselect_no_semijoin.result' > --- a/mysql-test/r/subselect_no_semijoin.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect_no_semijoin.result 2011-07-14 09:11:11 +0000 > @@ -56,7 +56,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > 1 > 1 > @@ -319,7 +319,7 @@ NULL UNION RESULT <union2,3> ALL NULL NU > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t2`.`a`>((select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +Note 1003 select (select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > ERROR 21000: Subquery returns more than 1 row > create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > @@ -337,7 +337,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > Warnings: > Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > ERROR 23000: Column 'a' in field list is ambiguous > drop table t1,t2,t3; > @@ -751,7 +751,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > id > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > @@ -899,7 +899,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > CREATE TABLE t3 (a int(11) default '0'); > INSERT INTO t3 VALUES (1),(2),(3); > SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > @@ -914,7 +914,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > drop table t1,t2,t3; > create table t1 (a float); > select 10.5 IN (SELECT * from t1 LIMIT 1); > @@ -1304,7 +1304,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1314,7 +1314,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1325,7 +1325,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 func 1 100.00 Using where > 2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY PRIMARY 4 test.t1.b 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > drop table t1, t2, t3; > create table t1 (a int, b int, index a (a,b)); > create table t2 (a int, index a (a)); > @@ -1347,7 +1347,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1357,7 +1357,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1368,7 +1368,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using index > 2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > insert into t1 values (3,31); > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > @@ -1384,7 +1384,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1001 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > drop table t0, t1, t2, t3; > create table t1 (a int, b int); > create table t2 (a int, b int); > @@ -1475,25 +1475,25 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > drop table t1,t2; > create table t2 (a int, b int); > create table t3 (a int); > @@ -1748,14 +1748,14 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > @@ -2291,7 +2291,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > drop table t1; > CREATE TABLE t1 (t1_a int); > INSERT INTO t1 VALUES (1); > @@ -2832,19 +2832,19 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 Using where > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`))))) > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`)))) > explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > DROP TABLE t1,t2; > CREATE TABLE t1 (a char(5), b char(5)); > INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > @@ -4327,13 +4327,13 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > Warnings: > -Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) > DROP TABLE t1; > # > # Bug#45061: Incorrectly market field caused wrong result. > > === added file 'mysql-test/r/subselect_scache.result' > --- a/mysql-test/r/subselect_scache.result 1970-01-01 00:00:00 +0000 > +++ b/mysql-test/r/subselect_scache.result 2011-07-14 09:11:11 +0000 > @@ -0,0 +1,5139 @@ > +select @@optimizer_switch like '%subquery_cache=on%'; > +@@optimizer_switch like '%subquery_cache=on%' > +0 > +set optimizer_switch='subquery_cache=on'; > +drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12; > +drop view if exists v2; > +set @subselect_tmp=@@optimizer_switch; > +set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test, > +"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off"); > +set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; > +select (select 2); > +(select 2) > +2 > +explain extended select (select 2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select 2 AS `(select 2)` > +SELECT (SELECT 1) UNION SELECT (SELECT 2); > +(SELECT 1) > +1 > +2 > +explain extended SELECT (SELECT 1) UNION SELECT (SELECT 2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1249 Select 4 was reduced during optimization > +Note 1003 select 1 AS `(SELECT 1)` union select 2 AS `(SELECT 2)` > +SELECT (SELECT (SELECT 0 UNION SELECT 0)); > +(SELECT (SELECT 0 UNION SELECT 0)) > +0 > +explain extended SELECT (SELECT (SELECT 0 UNION SELECT 0)); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +4 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select (select 0 union select 0) AS `(SELECT (SELECT 0 UNION SELECT 0))` > +SELECT (SELECT 1 FROM (SELECT 1) as b HAVING a=1) as a; > +ERROR 42S22: Reference 'a' not supported (forward reference in item list) > +SELECT (SELECT 1 FROM (SELECT 1) as b HAVING b=1) as a,(SELECT 1 FROM (SELECT 1) as c HAVING a=1) as b; > +ERROR 42S22: Reference 'b' not supported (forward reference in item list) > +SELECT (SELECT 1),MAX(1) FROM (SELECT 1) as a; > +(SELECT 1) MAX(1) > +1 1 > +SELECT (SELECT a) as a; > +ERROR 42S22: Reference 'a' not supported (forward reference in item list) > +EXPLAIN EXTENDED SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00 > +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +Warnings: > +Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > +Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > +1 > +1 > +SELECT (SELECT 1), a; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT 1 as a FROM (SELECT 1) as b HAVING (SELECT a)=1; > +a > +1 > +SELECT 1 FROM (SELECT (SELECT a) b) c; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT * FROM (SELECT 1 as id) b WHERE id IN (SELECT * FROM (SELECT 1 as id) c ORDER BY id); > +id > +1 > +SELECT * FROM (SELECT 1) a WHERE 1 IN (SELECT 1,1); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT 1 IN (SELECT 1); > +1 IN (SELECT 1) > +1 > +SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); > +1 > +1 > +select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); > +ERROR HY000: Incorrect usage of PROCEDURE and subquery > +SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); > +ERROR HY000: Incorrect parameters to procedure 'ANALYSE' > +SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; > +ERROR 42S22: Unknown column 'a' in 'field list' > +SELECT (SELECT 1,2,3) = ROW(1,2,3); > +(SELECT 1,2,3) = ROW(1,2,3) > +1 > +SELECT (SELECT 1,2,3) = ROW(1,2,1); > +(SELECT 1,2,3) = ROW(1,2,1) > +0 > +SELECT (SELECT 1,2,3) < ROW(1,2,1); > +(SELECT 1,2,3) < ROW(1,2,1) > +0 > +SELECT (SELECT 1,2,3) > ROW(1,2,1); > +(SELECT 1,2,3) > ROW(1,2,1) > +1 > +SELECT (SELECT 1,2,3) = ROW(1,2,NULL); > +(SELECT 1,2,3) = ROW(1,2,NULL) > +NULL > +SELECT ROW(1,2,3) = (SELECT 1,2,3); > +ROW(1,2,3) = (SELECT 1,2,3) > +1 > +SELECT ROW(1,2,3) = (SELECT 1,2,1); > +ROW(1,2,3) = (SELECT 1,2,1) > +0 > +SELECT ROW(1,2,3) < (SELECT 1,2,1); > +ROW(1,2,3) < (SELECT 1,2,1) > +0 > +SELECT ROW(1,2,3) > (SELECT 1,2,1); > +ROW(1,2,3) > (SELECT 1,2,1) > +1 > +SELECT ROW(1,2,3) = (SELECT 1,2,NULL); > +ROW(1,2,3) = (SELECT 1,2,NULL) > +NULL > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a'); > +(SELECT 1.5,2,'a') = ROW(1.5,2,'a') > +1 > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b'); > +(SELECT 1.5,2,'a') = ROW(1.5,2,'b') > +0 > +SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b'); > +(SELECT 1.5,2,'a') = ROW('1.5b',2,'b') > +0 > +Warnings: > +Warning 1292 Truncated incorrect DOUBLE value: '1.5b' > +SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a'); > +(SELECT 'b',2,'a') = ROW(1.5,2,'a') > +0 > +SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a'); > +(SELECT 1.5,2,'a') = ROW(1.5,'2','a') > +1 > +SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a'); > +(SELECT 1.5,'c','a') = ROW(1.5,2,'a') > +0 > +SELECT (SELECT * FROM (SELECT 'test' a,'test' b) a); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT 1 as a,(SELECT a+a) b,(SELECT b); > +a b (SELECT b) > +1 2 2 > +create table t1 (a int); > +create table t2 (a int, b int); > +create table t3 (a int); > +create table t4 (a int not null, b int not null); > +insert into t1 values (2); > +insert into t2 values (1,7),(2,7); > +insert into t4 values (4,8),(3,8),(5,9); > +select (select a from t1 where t1.a = a1) as a2, (select b from t2 where t2.b=a2) as a1; > +ERROR 42S22: Reference 'a1' not supported (forward reference in item list) > +select (select a from t1 where t1.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a) a > +NULL 1 > +2 2 > +select (select a from t1 where t1.a=t2.b), a from t2; > +(select a from t1 where t1.a=t2.b) a > +NULL 1 > +NULL 2 > +select (select a from t1), a, (select 1 union select 2 limit 1) from t2; > +(select a from t1) a (select 1 union select 2 limit 1) > +2 1 1 > +2 2 1 > +select (select a from t3), a from t2; > +(select a from t3) a > +NULL 1 > +NULL 2 > +select * from t2 where t2.a=(select a from t1); > +a b > +2 7 > +insert into t3 values (6),(7),(3); > +select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1); > +a b > +1 7 > +2 7 > +(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 order by a limit 2) limit 3; > +a b > +1 7 > +2 7 > +3 8 > +(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a); > +a b > +1 7 > +2 7 > +4 8 > +3 8 > +explain extended (select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 where t4.b=(select max(t2.a)*4 from t2) order by a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > +2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using filesort > +3 UNION t4 ALL NULL NULL NULL NULL 3 100.00 Using where > +4 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 > +NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = (select `test`.`t3`.`a` from `test`.`t3` order by 1 desc limit 1))) union (select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t4` where (`test`.`t4`.`b` = (select (max(`test`.`t2`.`a`) * 4) from `test`.`t2`)) order by `a`) > +select (select a from t3 where a<t2.a*4 order by 1 desc limit 1), a from t2; > +(select a from t3 where a<t2.a*4 order by 1 desc limit 1) a > +3 1 > +7 2 > +select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from > +(select * from t2 where a>1) as tt; > +(select t3.a from t3 where a<8 order by 1 desc limit 1) a > +7 2 > +explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from > +(select * from t2 where a>1) as tt; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > +2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort > +Warnings: > +Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`test`.`t2`.`a` AS `a` from `test`.`t2` where (`test`.`t2`.`a` > 1) > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1); > +a > +2 > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a > t1.a) order by 1 desc limit 1); > +a > +2 > +select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a < t1.a) order by 1 desc limit 1); > +a > +select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4; > +b (select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) > +8 7.5000 > +8 4.5000 > +9 7.5000 > +explain extended select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t4 ALL NULL NULL NULL NULL 3 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 > +3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +Warnings: > +Note 1276 Field or reference 'test.t4.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select `test`.`t4`.`b` AS `b`,(select avg((`test`.`t2`.`a` + (select min(`test`.`t3`.`a`) from `test`.`t3` where (`test`.`t3`.`a` >= `test`.`t4`.`a`)))) from `test`.`t2`) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4` > +select * from t3 where exists (select * from t2 where t2.b=t3.a); > +a > +7 > +select * from t3 where not exists (select * from t2 where t2.b=t3.a); > +a > +6 > +3 > +select * from t3 where a in (select b from t2); > +a > +7 > +select * from t3 where a not in (select b from t2); > +a > +6 > +3 > +select * from t3 where a = some (select b from t2); > +a > +7 > +select * from t3 where a <> any (select b from t2); > +a > +6 > +3 > +select * from t3 where a = all (select b from t2); > +a > +7 > +select * from t3 where a <> all (select b from t2); > +a > +6 > +3 > +insert into t2 values (100, 5); > +select * from t3 where a < any (select b from t2); > +a > +6 > +3 > +select * from t3 where a < all (select b from t2); > +a > +3 > +select * from t3 where a >= any (select b from t2); > +a > +6 > +7 > +explain extended select * from t3 where a >= any (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(`test`.`t2`.`b`) from `test`.`t2`)))) > +select * from t3 where a >= all (select b from t2); > +a > +7 > +delete from t2 where a=100; > +select * from t3 where a in (select a,b from t2); > +ERROR 21000: Operand should contain 1 column(s) > +select * from t3 where a in (select * from t2); > +ERROR 21000: Operand should contain 1 column(s) > +insert into t4 values (12,7),(1,7),(10,9),(9,6),(7,6),(3,9),(1,10); > +select b,max(a) as ma from t4 group by b having b < (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +insert into t2 values (2,10); > +select b,max(a) as ma from t4 group by b having ma < (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +10 1 > +delete from t2 where a=2 and b=10; > +select b,max(a) as ma from t4 group by b having b >= (select max(t2.a) from t2 where t2.b=t4.b); > +b ma > +7 12 > +create table t5 (a int); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +insert into t5 values (5); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +insert into t5 values (2); > +select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a > +NULL 1 > +2 2 > +explain extended select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > +3 DEPENDENT UNION t5 ALL NULL NULL NULL NULL 2 100.00 Using where > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > +Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > +Note 1003 select <expr_cache><`test`.`t2`.`a`>((select 2 from `test`.`t1` where (2 = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > +ERROR 21000: Subquery returns more than 1 row > +create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > +create table t7( uq int primary key, name char(25)); > +insert into t7 values(1,"Oblastnaia bolnitsa"),(2,"Bolnitsa Krasnogo Kresta"); > +insert into t6 values (1,1),(1,2),(2,2),(1,3); > +select * from t6 where exists (select * from t7 where uq = clinic_uq); > +patient_uq clinic_uq > +1 1 > +1 2 > +2 2 > +explain extended select * from t6 where exists (select * from t7 where uq = clinic_uq); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t6 ALL NULL NULL NULL NULL 4 100.00 Using where > +2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > +Warnings: > +Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > +ERROR 23000: Column 'a' in field list is ambiguous > +drop table t1,t2,t3; > +CREATE TABLE t3 (a varchar(20),b char(1) NOT NULL default '0'); > +INSERT INTO t3 VALUES ('W','a'),('A','c'),('J','b'); > +CREATE TABLE t2 (a varchar(20),b int NOT NULL default '0'); > +INSERT INTO t2 VALUES ('W','1'),('A','3'),('J','2'); > +CREATE TABLE t1 (a varchar(20),b date NOT NULL default '0000-00-00'); > +INSERT INTO t1 VALUES ('W','1732-02-22'),('A','1735-10-30'),('J','1743-04-13'); > +SELECT * FROM t1 WHERE b = (SELECT MIN(b) FROM t1); > +a b > +W 1732-02-22 > +SELECT * FROM t2 WHERE b = (SELECT MIN(b) FROM t2); > +a b > +W 1 > +SELECT * FROM t3 WHERE b = (SELECT MIN(b) FROM t3); > +a b > +W a > +CREATE TABLE `t8` ( > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +`email` varchar(60) character set latin1 NOT NULL default '', > +PRIMARY KEY (`pseudo`), > +UNIQUE KEY `email` (`email`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t8 (pseudo,email) VALUES ('joce','test'); > +INSERT INTO t8 (pseudo,email) VALUES ('joce1','test1'); > +INSERT INTO t8 (pseudo,email) VALUES ('2joce1','2test1'); > +EXPLAIN EXTENDED SELECT pseudo,(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce')) FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +4 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +2 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 > +3 SUBQUERY t8 const PRIMARY PRIMARY 37 const 1 100.00 Using index > +Warnings: > +Note 1003 select 'joce' AS `pseudo`,(select 'test' from `test`.`t8` where ('joce' = (select 'joce' from `test`.`t8` where 1))) AS `(SELECT email FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'))` from `test`.`t8` where ('joce' = (select 'joce' from `test`.`t8` where 1)) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo,email FROM > +t8 WHERE pseudo='joce'); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT * FROM t8 WHERE > +pseudo='joce'); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo='joce'); > +pseudo > +joce > +SELECT pseudo FROM t8 WHERE pseudo=(SELECT pseudo FROM t8 WHERE pseudo LIKE '%joce%'); > +ERROR 21000: Subquery returns more than 1 row > +drop table if exists t1,t2,t3,t4,t5,t6,t7,t8; > +CREATE TABLE `t1` ( > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (topic,date,pseudo) VALUES > +('43506','2002-10-02','joce'),('40143','2002-08-03','joce'); > +EXPLAIN EXTENDED SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE t1 index NULL PRIMARY 43 NULL 2 100.00 Using where; Using index > +Warnings: > +Note 1003 select distinct `test`.`t1`.`date` AS `date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03') > +EXPLAIN EXTENDED SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 SUBQUERY t1 index NULL PRIMARY 43 NULL 2 100.00 Using where; Using index > +Warnings: > +Note 1003 select (select distinct `test`.`t1`.`date` from `test`.`t1` where (`test`.`t1`.`date` = '2002-08-03')) AS `(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03')` > +SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'; > +date > +2002-08-03 > +SELECT (SELECT DISTINCT date FROM t1 WHERE date='2002-08-03'); > +(SELECT DISTINCT date FROM t1 WHERE date='2002-08-03') > +2002-08-03 > +SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1) UNION ALL SELECT 1; > +1 > +1 > +1 > +1 > +SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1) UNION SELECT 1; > +ERROR 21000: Subquery returns more than 1 row > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1=(SELECT 1 UNION SELECT 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL topic 3 NULL 2 100.00 Using index > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where (1 = (select 1 union select 1)) > +drop table t1; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM ROW_FORMAT=FIXED; > +INSERT INTO t1 (numeropost,maxnumrep) VALUES (40143,1),(43506,2); > +CREATE TABLE `t2` ( > +`mot` varchar(30) NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`) > +) ENGINE=MyISAM ROW_FORMAT=DYNAMIC; > +INSERT INTO t2 (mot,topic,date,pseudo) VALUES ('joce','40143','2002-10-22','joce'), ('joce','43506','2002-10-22','joce'); > +select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1); > +a > +40143 > +SELECT numeropost,maxnumrep FROM t1 WHERE exists (SELECT 1 FROM t2 WHERE (mot='joce') AND date >= '2002-10-21' AND t1.numeropost = t2.topic) ORDER BY maxnumrep DESC LIMIT 0, 20; > +numeropost maxnumrep > +43506 2 > +40143 1 > +SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) b; > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT 1 IN (SELECT 1 FROM t2 HAVING a); > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +SELECT * from t2 where topic IN (SELECT SUM(topic) FROM t1); > +mot topic date pseudo > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1); > +mot topic date pseudo > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic); > +mot topic date pseudo > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2; > +mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) > +joce 40143 2002-10-22 joce 1 > +joce 43506 2002-10-22 joce 1 > +SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2); > +mot topic date pseudo > +SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +joce 43506 2002-10-22 joce > +SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000); > +mot topic date pseudo > +joce 40143 2002-10-22 joce > +SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2; > +mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) > +joce 40143 2002-10-22 joce 1 > +joce 43506 2002-10-22 joce 0 > +drop table t1,t2; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM ROW_FORMAT=FIXED; > +INSERT INTO t1 (numeropost,maxnumrep) VALUES (1,0),(2,1); > +select numeropost as a FROM t1 GROUP BY (SELECT 1 FROM t1 HAVING a=1); > +ERROR 21000: Subquery returns more than 1 row > +select numeropost as a FROM t1 ORDER BY (SELECT 1 FROM t1 HAVING a=1); > +ERROR 21000: Subquery returns more than 1 row > +show warnings; > +Level Code Message > +Error 1242 Subquery returns more than 1 row > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1),(2),(3); > +(select * from t1) union (select * from t1) order by (select a from t1 limit 1); > +a > +1 > +2 > +3 > +drop table t1; > +CREATE TABLE t1 (field char(1) NOT NULL DEFAULT 'b'); > +INSERT INTO t1 VALUES (); > +SELECT field FROM t1 WHERE 1=(SELECT 1 UNION ALL SELECT 1 FROM (SELECT 1) a HAVING field='b'); > +ERROR 21000: Subquery returns more than 1 row > +drop table t1; > +CREATE TABLE `t1` ( > +`numeropost` mediumint(8) unsigned NOT NULL default '0', > +`numreponse` int(10) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) NOT NULL default '', > +PRIMARY KEY (`numeropost`,`numreponse`), > +UNIQUE KEY `numreponse` (`numreponse`), > +KEY `pseudo` (`pseudo`,`numeropost`) > +) ENGINE=MyISAM; > +SELECT (SELECT numeropost FROM t1 HAVING numreponse=a),numreponse FROM (SELECT * FROM t1) as a; > +ERROR 42S22: Reference 'numreponse' not supported (forward reference in item list) > +SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=a) FROM (SELECT * FROM t1) as a; > +ERROR 42S22: Unknown column 'a' in 'having clause' > +SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=1) FROM (SELECT * FROM t1) as a; > +numreponse (SELECT numeropost FROM t1 HAVING numreponse=1) > +INSERT INTO t1 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test'); > +EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1'); > +ERROR 21000: Subquery returns more than 1 row > +EXPLAIN EXTENDED SELECT MAX(numreponse) FROM t1 WHERE numeropost='1'; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select max(`test`.`t1`.`numreponse`) AS `MAX(numreponse)` from `test`.`t1` where multiple equal(1, `test`.`t1`.`numeropost`) > +EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT MAX(numreponse) FROM t1 WHERE numeropost='1'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 const PRIMARY,numreponse PRIMARY 7 const,const 1 100.00 Using index > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select 3 AS `numreponse` from `test`.`t1` where ((3 = (select max(`test`.`t1`.`numreponse`) from `test`.`t1` where multiple equal(1, `test`.`t1`.`numeropost`)))) > +drop table t1; > +CREATE TABLE t1 (a int(1)); > +INSERT INTO t1 VALUES (1); > +SELECT 1 FROM (SELECT a FROM t1) b HAVING (SELECT b.a)=1; > +1 > +1 > +drop table t1; > +create table t1 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t1 values (0, 10),(1, 11),(2, 12); > +insert into t2 values (1, 21),(2, 22),(3, 23); > +select * from t1; > +a b > +0 10 > +1 11 > +2 12 > +update t1 set b= (select b from t1); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +update t1 set b= (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +update t1 set b= (select b from t2 where t1.a = t2.a); > +select * from t1; > +a b > +0 NULL > +1 21 > +2 22 > +drop table t1, t2; > +create table t1 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t1 values (0, 10),(1, 11),(2, 12); > +insert into t2 values (1, 21),(2, 12),(3, 23); > +select * from t1; > +a b > +0 10 > +1 11 > +2 12 > +select * from t1 where b = (select b from t2 where t1.a = t2.a); > +a b > +2 12 > +delete from t1 where b in (select b from t1); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +delete from t1 where b = (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +delete from t1 where b = (select b from t2 where t1.a = t2.a); > +select * from t1; > +a b > +0 10 > +1 11 > +drop table t1, t2; > +create table t11 (a int NOT NULL, b int, primary key (a)); > +create table t12 (a int NOT NULL, b int, primary key (a)); > +create table t2 (a int NOT NULL, b int, primary key (a)); > +insert into t11 values (0, 10),(1, 11),(2, 12); > +insert into t12 values (33, 10),(22, 11),(2, 12); > +insert into t2 values (1, 21),(2, 12),(3, 23); > +select * from t11; > +a b > +0 10 > +1 11 > +2 12 > +select * from t12; > +a b > +33 10 > +22 11 > +2 12 > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t12 where t11.a = t12.a); > +ERROR HY000: You can't specify target table 't12' for update in FROM clause > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2); > +ERROR 21000: Subquery returns more than 1 row > +delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b = (select b from t2 where t11.a = t2.a); > +select * from t11; > +a b > +0 10 > +1 11 > +select * from t12; > +a b > +33 10 > +22 11 > +drop table t11, t12, t2; > +CREATE TABLE t1 (x int) ENGINE=MyISAM; > +create table t2 (a int) ENGINE=MyISAM; > +create table t3 (b int); > +insert into t2 values (1); > +insert into t3 values (1),(2); > +INSERT INTO t1 (x) VALUES ((SELECT x FROM t1)); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +INSERT INTO t1 (x) VALUES ((SELECT b FROM t3)); > +ERROR 21000: Subquery returns more than 1 row > +INSERT INTO t1 (x) VALUES ((SELECT a FROM t2)); > +select * from t1; > +x > +1 > +insert into t2 values (1); > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2)); > +select * from t1; > +x > +1 > +2 > +INSERT INTO t1 (x) select (SELECT SUM(a)+1 FROM t2) FROM t2; > +select * from t1; > +x > +1 > +2 > +3 > +3 > +INSERT INTO t1 (x) select (SELECT SUM(x)+2 FROM t1) FROM t2; > +select * from t1; > +x > +1 > +2 > +3 > +3 > +11 > +11 > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(x) FROM t2)); > +ERROR 42S22: Unknown column 'x' in 'field list' > +INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(a) FROM t2)); > +select * from t1; > +x > +1 > +2 > +3 > +3 > +11 > +11 > +2 > +drop table t1, t2, t3; > +CREATE TABLE t1 (x int not null, y int, primary key (x)) ENGINE=MyISAM; > +create table t2 (a int); > +create table t3 (a int); > +insert into t2 values (1); > +insert into t3 values (1),(2); > +select * from t1; > +x y > +replace into t1 (x, y) VALUES ((SELECT x FROM t1), (SELECT a+1 FROM t2)); > +ERROR HY000: You can't specify target table 't1' for update in FROM clause > +replace into t1 (x, y) VALUES ((SELECT a FROM t3), (SELECT a+1 FROM t2)); > +ERROR 21000: Subquery returns more than 1 row > +replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+1 FROM t2)); > +select * from t1; > +x y > +1 2 > +replace into t1 (x, y) VALUES ((SELECT a FROM t2), (SELECT a+2 FROM t2)); > +select * from t1; > +x y > +1 3 > +replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a FROM t2)); > +select * from t1; > +x y > +1 3 > +4 1 > +replace DELAYED into t1 (x, y) VALUES ((SELECT a+3 FROM t2), (SELECT a+1 FROM t2)); > +select * from t1; > +x y > +1 3 > +4 2 > +replace LOW_PRIORITY into t1 (x, y) VALUES ((SELECT a+1 FROM t2), (SELECT a FROM t2)); > +select * from t1; > +x y > +1 3 > +4 2 > +2 1 > +drop table t1, t2, t3; > +SELECT * FROM (SELECT 1) b WHERE 1 IN (SELECT *); > +ERROR HY000: No tables used > +CREATE TABLE t2 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (1),(2); > +SELECT * FROM t2 WHERE id IN (SELECT 1); > +id > +1 > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ref id id 5 const 1 100.00 Using index > +Warnings: > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = 1) > +SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3); > +id > +1 > +SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1)); > +id > +2 > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1)); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 ref id id 5 const 1 100.00 Using index > +Warnings: > +Note 1249 Select 3 was reduced during optimization > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where (`test`.`t2`.`id` = (1 + 1)) > +EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1 UNION SELECT 3); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index NULL id 5 NULL 2 100.00 Using where; Using index > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > +id > +SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > +id > +2 > +INSERT INTO t2 VALUES ((SELECT * FROM t2)); > +ERROR HY000: You can't specify target table 't2' for update in FROM clause > +INSERT INTO t2 VALUES ((SELECT id FROM t2)); > +ERROR HY000: You can't specify target table 't2' for update in FROM clause > +SELECT * FROM t2; > +id > +1 > +2 > +CREATE TABLE t1 (id int(11) default NULL, KEY id (id)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 values (1),(1); > +UPDATE t2 SET id=(SELECT * FROM t1); > +ERROR 21000: Subquery returns more than 1 row > +drop table t2, t1; > +create table t1 (a int); > +insert into t1 values (1),(2),(3); > +select 1 IN (SELECT * from t1); > +1 IN (SELECT * from t1) > +1 > +select 10 IN (SELECT * from t1); > +10 IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a=2; > +select 1 IN (SELECT * from t1); > +1 IN (SELECT * from t1) > +1 > +select 3 IN (SELECT * from t1); > +3 IN (SELECT * from t1) > +1 > +select 10 IN (SELECT * from t1); > +10 IN (SELECT * from t1) > +NULL > +select 1 > ALL (SELECT * from t1); > +1 > ALL (SELECT * from t1) > +0 > +select 10 > ALL (SELECT * from t1); > +10 > ALL (SELECT * from t1) > +NULL > +select 1 > ANY (SELECT * from t1); > +1 > ANY (SELECT * from t1) > +NULL > +select 10 > ANY (SELECT * from t1); > +10 > ANY (SELECT * from t1) > +1 > +drop table t1; > +create table t1 (a varchar(20)); > +insert into t1 values ('A'),('BC'),('DEF'); > +select 'A' IN (SELECT * from t1); > +'A' IN (SELECT * from t1) > +1 > +select 'XYZS' IN (SELECT * from t1); > +'XYZS' IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a='BC'; > +select 'A' IN (SELECT * from t1); > +'A' IN (SELECT * from t1) > +1 > +select 'DEF' IN (SELECT * from t1); > +'DEF' IN (SELECT * from t1) > +1 > +select 'XYZS' IN (SELECT * from t1); > +'XYZS' IN (SELECT * from t1) > +NULL > +select 'A' > ALL (SELECT * from t1); > +'A' > ALL (SELECT * from t1) > +0 > +select 'XYZS' > ALL (SELECT * from t1); > +'XYZS' > ALL (SELECT * from t1) > +NULL > +select 'A' > ANY (SELECT * from t1); > +'A' > ANY (SELECT * from t1) > +NULL > +select 'XYZS' > ANY (SELECT * from t1); > +'XYZS' > ANY (SELECT * from t1) > +1 > +drop table t1; > +create table t1 (a float); > +insert into t1 values (1.5),(2.5),(3.5); > +select 1.5 IN (SELECT * from t1); > +1.5 IN (SELECT * from t1) > +1 > +select 10.5 IN (SELECT * from t1); > +10.5 IN (SELECT * from t1) > +0 > +select NULL IN (SELECT * from t1); > +NULL IN (SELECT * from t1) > +NULL > +update t1 set a=NULL where a=2.5; > +select 1.5 IN (SELECT * from t1); > +1.5 IN (SELECT * from t1) > +1 > +select 3.5 IN (SELECT * from t1); > +3.5 IN (SELECT * from t1) > +1 > +select 10.5 IN (SELECT * from t1); > +10.5 IN (SELECT * from t1) > +NULL > +select 1.5 > ALL (SELECT * from t1); > +1.5 > ALL (SELECT * from t1) > +0 > +select 10.5 > ALL (SELECT * from t1); > +10.5 > ALL (SELECT * from t1) > +NULL > +select 1.5 > ANY (SELECT * from t1); > +1.5 > ANY (SELECT * from t1) > +NULL > +select 10.5 > ANY (SELECT * from t1); > +10.5 > ANY (SELECT * from t1) > +1 > +explain extended select (select a+1) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 > +Note 1249 Select 2 was reduced during optimization > +Note 1003 select (`test`.`t1`.`a` + 1) AS `(select a+1)` from `test`.`t1` > +select (select a+1) from t1; > +(select a+1) > +2.5 > +NULL > +4.5 > +drop table t1; > +CREATE TABLE t1 (a int(11) NOT NULL default '0', PRIMARY KEY (a)); > +CREATE TABLE t2 (a int(11) default '0', INDEX (a)); > +INSERT INTO t1 VALUES (1),(2),(3),(4); > +INSERT INTO t2 VALUES (1),(2),(3); > +SELECT t1.a, t1.a in (select t2.a from t2) FROM t1; > +a t1.a in (select t2.a from t2) > +1 1 > +2 1 > +3 1 > +4 0 > +explain extended SELECT t1.a, t1.a in (select t2.a from t2) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +CREATE TABLE t3 (a int(11) default '0'); > +INSERT INTO t3 VALUES (1),(2),(3); > +SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > +a t1.a in (select t2.a from t2,t3 where t3.a=t2.a) > +1 1 > +2 1 > +3 1 > +4 0 > +explain extended SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > +2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > +2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +drop table t1,t2,t3; > +create table t1 (a float); > +select 10.5 IN (SELECT * from t1 LIMIT 1); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +select 10.5 IN (SELECT * from t1 LIMIT 1 UNION SELECT 1.5); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +drop table t1; > +create table t1 (a int, b int, c varchar(10)); > +create table t2 (a int); > +insert into t1 values (1,2,'a'),(2,3,'b'),(3,4,'c'); > +insert into t2 values (1),(2),(NULL); > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a') (select c from t1 where a=t2.a) > +1 1 a > +2 0 b > +NULL NULL NULL > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,3,'b') (select c from t1 where a=t2.a) > +1 0 a > +2 1 b > +NULL NULL NULL > +select a, (select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c'),(select c from t1 where a=t2.a) from t2; > +a (select a,b,c from t1 where t1.a=t2.a) = ROW(a,4,'c') (select c from t1 where a=t2.a) > +1 0 a > +2 0 b > +NULL NULL NULL > +drop table t1,t2; > +create table t1 (a int, b real, c varchar(10)); > +insert into t1 values (1, 1, 'a'), (2,2,'b'), (NULL, 2, 'b'); > +select ROW(1, 1, 'a') IN (select a,b,c from t1); > +ROW(1, 1, 'a') IN (select a,b,c from t1) > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1); > +ROW(1, 2, 'a') IN (select a,b,c from t1) > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1); > +ROW(1, 1, 'a') IN (select b,a,c from t1) > +1 > +select ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null); > +ROW(1, 1, 'a') IN (select a,b,c from t1 where a is not null) > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null); > +ROW(1, 2, 'a') IN (select a,b,c from t1 where a is not null) > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null); > +ROW(1, 1, 'a') IN (select b,a,c from t1 where a is not null) > +1 > +select ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a'); > +ROW(1, 1, 'a') IN (select a,b,c from t1 where c='b' or c='a') > +1 > +select ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a'); > +ROW(1, 2, 'a') IN (select a,b,c from t1 where c='b' or c='a') > +0 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a'); > +ROW(1, 1, 'a') IN (select b,a,c from t1 where c='b' or c='a') > +1 > +select ROW(1, 1, 'a') IN (select b,a,c from t1 limit 2); > +ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1); > +do @a:=(SELECT a from t1); > +select @a; > +@a > +1 > +set @a:=2; > +set @a:=(SELECT a from t1); > +select @a; > +@a > +1 > +drop table t1; > +do (SELECT a from t1); > +ERROR 42S02: Table 'test.t1' doesn't exist > +set @a:=(SELECT a from t1); > +ERROR 42S02: Table 'test.t1' doesn't exist > +CREATE TABLE t1 (a int, KEY(a)); > +HANDLER t1 OPEN; > +HANDLER t1 READ a=((SELECT 1)); > +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT 1))' at line 1 > +HANDLER t1 CLOSE; > +drop table t1; > +create table t1 (a int); > +create table t2 (b int); > +insert into t1 values (1),(2); > +insert into t2 values (1); > +select a from t1 where a in (select a from t1 where a in (select b from t2)); > +a > +1 > +drop table t1, t2; > +create table t1 (a int, b int); > +create table t2 like t1; > +insert into t1 values (1,2),(1,3),(1,4),(1,5); > +insert into t2 values (1,2),(1,3); > +select * from t1 where row(a,b) in (select a,b from t2); > +a b > +1 2 > +1 3 > +drop table t1, t2; > +CREATE TABLE `t1` (`i` int(11) NOT NULL default '0',PRIMARY KEY (`i`)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1); > +UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i)); > +select * from t1; > +i > +2 > +drop table t1; > +CREATE TABLE t1 (a int(1)); > +EXPLAIN EXTENDED SELECT (SELECT RAND() FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select rand() from `test`.`t1`) AS `(SELECT RAND() FROM t1)` from `test`.`t1` > +EXPLAIN EXTENDED SELECT (SELECT ENCRYPT('test') FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select encrypt('test') from `test`.`t1`) AS `(SELECT ENCRYPT('test') FROM t1)` from `test`.`t1` > +EXPLAIN EXTENDED SELECT (SELECT BENCHMARK(1,1) FROM t1) FROM t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select (select benchmark(1,1) from `test`.`t1`) AS `(SELECT BENCHMARK(1,1) FROM t1)` from `test`.`t1` > +drop table t1; > +CREATE TABLE `t1` ( > +`mot` varchar(30) character set latin1 NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`), > +KEY `pseudo` (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +CREATE TABLE `t2` ( > +`mot` varchar(30) character set latin1 NOT NULL default '', > +`topic` mediumint(8) unsigned NOT NULL default '0', > +`date` date NOT NULL default '0000-00-00', > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`mot`,`pseudo`,`date`,`topic`), > +KEY `pseudo` (`pseudo`,`date`,`topic`), > +KEY `topic` (`topic`) > +) ENGINE=MyISAM CHARSET=latin1 ROW_FORMAT=DYNAMIC; > +CREATE TABLE `t3` ( > +`numeropost` mediumint(8) unsigned NOT NULL auto_increment, > +`maxnumrep` int(10) unsigned NOT NULL default '0', > +PRIMARY KEY (`numeropost`), > +UNIQUE KEY `maxnumrep` (`maxnumrep`) > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES ('joce','1','','joce'),('test','2','','test'); > +Warnings: > +Warning 1265 Data truncated for column 'date' at row 1 > +Warning 1265 Data truncated for column 'date' at row 2 > +INSERT INTO t2 VALUES ('joce','1','','joce'),('test','2','','test'); > +Warnings: > +Warning 1265 Data truncated for column 'date' at row 1 > +Warning 1265 Data truncated for column 'date' at row 2 > +INSERT INTO t3 VALUES (1,1); > +SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE > +numeropost=topic); > +topic > +2 > +select * from t1; > +mot topic date pseudo > +joce 1 0000-00-00 joce > +test 2 0000-00-00 test > +DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT > +EXISTS(SELECT * FROM t3 WHERE numeropost=topic)); > +select * from t1; > +mot topic date pseudo > +joce 1 0000-00-00 joce > +drop table t1, t2, t3; > +SELECT * FROM (SELECT 1 as a,(SELECT a)) a; > +a (SELECT a) > +1 1 > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT 1)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT 1)` int(1) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT a)` int(1) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT * FROM (SELECT 1 as a,(SELECT a+0)) a; > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` int(1) NOT NULL DEFAULT '0', > + `(SELECT a+0)` int(3) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +CREATE TABLE t1 SELECT (SELECT 1 as a UNION SELECT 1+1 limit 1,1) as a; > +select * from t1; > +a > +2 > +SHOW CREATE TABLE t1; > +Table Create Table > +t1 CREATE TABLE `t1` ( > + `a` bigint(20) NOT NULL DEFAULT '0' > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +drop table t1; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +explain extended select a,(select (select rand() from t1 limit 1) from t1 limit 1) > +from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 > +2 UNCACHEABLE SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 > +3 UNCACHEABLE SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 > +Warnings: > +Note 1003 select `test`.`t1`.`a` AS `a`,(select (select rand() from `test`.`t1` limit 1) from `test`.`t1` limit 1) AS `(select (select rand() from t1 limit 1) from t1 limit 1)` from `test`.`t1` > +drop table t1; > +select t1.Continent, t2.Name, t2.Population from t1 LEFT JOIN t2 ON t1.Code = t2.Country where t2.Population IN (select max(t2.Population) AS Population from t2, t1 where t2.Country = t1.Code group by Continent); > +ERROR 42S02: Table 'test.t1' doesn't exist > +CREATE TABLE t1 ( > +ID int(11) NOT NULL auto_increment, > +name char(35) NOT NULL default '', > +t2 char(3) NOT NULL default '', > +District char(20) NOT NULL default '', > +Population int(11) NOT NULL default '0', > +PRIMARY KEY (ID) > +) ENGINE=MyISAM; > +INSERT INTO t1 VALUES (130,'Sydney','AUS','New South Wales',3276207); > +INSERT INTO t1 VALUES (131,'Melbourne','AUS','Victoria',2865329); > +INSERT INTO t1 VALUES (132,'Brisbane','AUS','Queensland',1291117); > +CREATE TABLE t2 ( > +Code char(3) NOT NULL default '', > +Name char(52) NOT NULL default '', > +Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia', > +Region char(26) NOT NULL default '', > +SurfaceArea float(10,2) NOT NULL default '0.00', > +IndepYear smallint(6) default NULL, > +Population int(11) NOT NULL default '0', > +LifeExpectancy float(3,1) default NULL, > +GNP float(10,2) default NULL, > +GNPOld float(10,2) default NULL, > +LocalName char(45) NOT NULL default '', > +GovernmentForm char(45) NOT NULL default '', > +HeadOfState char(60) default NULL, > +Capital int(11) default NULL, > +Code2 char(2) NOT NULL default '', > +PRIMARY KEY (Code) > +) ENGINE=MyISAM; > +INSERT INTO t2 VALUES ('AUS','Australia','Oceania','Australia and New Zealand',7741220.00,1901,18886000,79.8,351182.00,392911.00,'Australia','Constitutional Monarchy, Federation','Elisabeth II',135,'AU'); > +INSERT INTO t2 VALUES ('AZE','Azerbaijan','Asia','Middle East',86600.00,1991,7734000,62.9,4127.00,4100.00,'Azärbaycan','Federal Republic','Heydär Äliyev',144,'AZ'); > +select t2.Continent, t1.Name, t1.Population from t2 LEFT JOIN t1 ON t2.Code = t1.t2 where t1.Population IN (select max(t1.Population) AS Population from t1, t2 where t1.t2 = t2.Code group by Continent); > +Continent Name Population > +Oceania Sydney 3276207 > +drop table t1, t2; > +CREATE TABLE `t1` ( > +`id` mediumint(8) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) character set latin1 NOT NULL default '', > +PRIMARY KEY (`id`), > +UNIQUE KEY `pseudo` (`pseudo`) > +) ENGINE=MyISAM PACK_KEYS=1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (pseudo) VALUES ('test'); > +SELECT 0 IN (SELECT 1 FROM t1 a); > +0 IN (SELECT 1 FROM t1 a) > +0 > +EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +Warnings: > +Note 1003 select <in_optimizer>(0,<exists>(select 1 from `test`.`t1` `a` where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)` > +INSERT INTO t1 (pseudo) VALUES ('test1'); > +SELECT 0 IN (SELECT 1 FROM t1 a); > +0 IN (SELECT 1 FROM t1 a) > +0 > +EXPLAIN EXTENDED SELECT 0 IN (SELECT 1 FROM t1 a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +Warnings: > +Note 1003 select <in_optimizer>(0,<exists>(select 1 from `test`.`t1` `a` where (0 = 1))) AS `0 IN (SELECT 1 FROM t1 a)` > +drop table t1; > +CREATE TABLE `t1` ( > +`i` int(11) NOT NULL default '0', > +PRIMARY KEY (`i`) > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1); > +UPDATE t1 SET i=i+(SELECT MAX(i) FROM (SELECT 1) t) WHERE i=(SELECT MAX(i)); > +UPDATE t1 SET i=i+1 WHERE i=(SELECT MAX(i)); > +UPDATE t1 SET t.i=i+(SELECT MAX(i) FROM (SELECT 1) t); > +ERROR 42S22: Unknown column 't.i' in 'field list' > +select * from t1; > +i > +3 > +drop table t1; > +CREATE TABLE t1 ( > +id int(11) default NULL > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1),(1),(2),(2),(1),(3); > +CREATE TABLE t2 ( > +id int(11) default NULL, > +name varchar(15) default NULL > +) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (4,'vita'), (1,'vita'), (2,'vita'), (1,'vita'); > +update t1, t2 set t2.name='lenka' where t2.id in (select id from t1); > +select * from t2; > +id name > +4 vita > +1 lenka > +2 lenka > +1 lenka > +drop table t1,t2; > +create table t1 (a int, unique index indexa (a)); > +insert into t1 values (-1), (-4), (-2), (NULL); > +select -10 IN (select a from t1 FORCE INDEX (indexa)); > +-10 IN (select a from t1 FORCE INDEX (indexa)) > +NULL > +drop table t1; > +create table t1 (id int not null auto_increment primary key, salary int, key(salary)); > +insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); > +explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away > +Warnings: > +Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`)) > +drop table t1; > +CREATE TABLE t1 ( > +ID int(10) unsigned NOT NULL auto_increment, > +SUB_ID int(3) unsigned NOT NULL default '0', > +REF_ID int(10) unsigned default NULL, > +REF_SUB int(3) unsigned default '0', > +PRIMARY KEY (ID,SUB_ID), > +UNIQUE KEY t1_PK (ID,SUB_ID), > +KEY t1_FK (REF_ID,REF_SUB), > +KEY t1_REFID (REF_ID) > +) ENGINE=MyISAM CHARSET=cp1251; > +INSERT INTO t1 VALUES (1,0,NULL,NULL),(2,0,NULL,NULL); > +SELECT DISTINCT REF_ID FROM t1 WHERE ID= (SELECT DISTINCT REF_ID FROM t1 WHERE ID=2); > +REF_ID > +DROP TABLE t1; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +insert into t1 values (1,0), (2,0), (3,0); > +insert into t2 values (1,1), (2,1), (3,1), (2,2); > +update ignore t1 set b=(select b from t2 where t1.a=t2.a); > +Warnings: > +Error 1242 Subquery returns more than 1 row > +select * from t1; > +a b > +1 1 > +2 NULL > +3 1 > +drop table t1, t2; > +CREATE TABLE `t1` ( > +`id` mediumint(8) unsigned NOT NULL auto_increment, > +`pseudo` varchar(35) NOT NULL default '', > +`email` varchar(60) NOT NULL default '', > +PRIMARY KEY (`id`), > +UNIQUE KEY `email` (`email`), > +UNIQUE KEY `pseudo` (`pseudo`) > +) ENGINE=MyISAM CHARSET=latin1 PACK_KEYS=1 ROW_FORMAT=DYNAMIC; > +INSERT INTO t1 (id,pseudo,email) VALUES (1,'test','test'),(2,'test1','test1'); > +SELECT pseudo as a, pseudo as b FROM t1 GROUP BY (SELECT a) ORDER BY (SELECT id*1); > +a b > +test test > +test1 test1 > +drop table if exists t1; > +(SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0); > +a > +1 > +create table t1 (a int not null, b int, primary key (a)); > +create table t2 (a int not null, primary key (a)); > +create table t3 (a int not null, b int, primary key (a)); > +insert into t1 values (1,10), (2,20), (3,30), (4,40); > +insert into t2 values (2), (3), (4), (5); > +insert into t3 values (10,3), (20,4), (30,5); > +select * from t2 where t2.a in (select a from t1); > +a > +2 > +3 > +4 > +explain extended select * from t2 where t2.a in (select a from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 index PRIMARY PRIMARY 4 NULL 4 75.00 Using where; Using index; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 4 75.00 Using where; Using join buffer (flat, BNL join) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +a > +2 > +3 > +explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 4 75.00 Using where; Using join buffer (flat, BNL join) > +1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t1.b 1 100.00 Using index > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`)) > +drop table t1, t2, t3; > +create table t1 (a int, b int, index a (a,b)); > +create table t2 (a int, index a (a)); > +create table t3 (a int, b int, index a (a)); > +insert into t1 values (1,10), (2,20), (3,30), (4,40); > +create table t0(a int); > +insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +insert into t1 > +select rand()*100000+200,rand()*100000 from t0 A, t0 B, t0 C, t0 D; > +insert into t2 values (2), (3), (4), (5); > +insert into t3 values (10,3), (20,4), (30,5); > +select * from t2 where t2.a in (select a from t1); > +a > +2 > +3 > +4 > +explain extended select * from t2 where t2.a in (select a from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where (`test`.`t1`.`a` = `test`.`t2`.`a`) > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +a > +2 > +3 > +explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t3 index a a 5 NULL 3 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 10 test.t2.a,test.t3.a 116 100.00 Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` = `test`.`t3`.`a`)) > +insert into t1 values (3,31); > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +a > +2 > +3 > +4 > +select * from t2 where t2.a in (select a from t1 where t1.b <> 30 and t1.b <> 31); > +a > +2 > +4 > +explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index > +1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) > +Warnings: > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t1`.`b` <> 30)) > +drop table t0, t1, t2, t3; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +create table t3 (a int, b int); > +insert into t1 values (0,100),(1,2), (1,3), (2,2), (2,7), (2,-1), (3,10); > +insert into t2 values (0,0), (1,1), (2,1), (3,1), (4,1); > +insert into t3 values (3,3), (2,2), (1,1); > +select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) from t3; > +a (select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) > +3 1 > +2 2 > +1 2 > +drop table t1,t2,t3; > +create table t1 (s1 int); > +create table t2 (s1 int); > +insert into t1 values (1); > +insert into t2 values (1); > +select * from t1 where exists (select s1 from t2 having max(t2.s1)=t1.s1); > +s1 > +1 > +drop table t1,t2; > +create table t1 (s1 int); > +create table t2 (s1 int); > +insert into t1 values (1); > +insert into t2 values (1); > +update t1 set s1 = s1 + 1 where 1 = (select x.s1 as A from t2 WHERE t2.s1 > t1.s1 order by A); > +ERROR 42S22: Unknown column 'x.s1' in 'field list' > +DROP TABLE t1, t2; > +CREATE TABLE t1 (s1 CHAR(5) COLLATE latin1_german1_ci, > +s2 CHAR(5) COLLATE latin1_swedish_ci); > +INSERT INTO t1 VALUES ('z','?'); > +select * from t1 where s1 > (select max(s2) from t1); > +ERROR HY000: Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '>' > +select * from t1 where s1 > any (select max(s2) from t1); > +ERROR HY000: Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '>' > +drop table t1; > +create table t1(toid int,rd int); > +create table t2(userid int,pmnew int,pmtotal int); > +insert into t2 values(1,0,0),(2,0,0); > +insert into t1 values(1,0),(1,0),(1,0),(1,12),(1,15),(1,123),(1,12312),(1,12312),(1,123),(2,0),(2,0),(2,1),(2,2); > +select userid,pmtotal,pmnew, (select count(rd) from t1 where toid=t2.userid) calc_total, (select count(rd) from t1 where rd=0 and toid=t2.userid) calc_new from t2 where userid in (select distinct toid from t1); > +userid pmtotal pmnew calc_total calc_new > +1 0 0 9 3 > +2 0 0 4 2 > +drop table t1, t2; > +create table t1 (s1 char(5)); > +select (select 'a','b' from t1 union select 'a','b' from t1) from t1; > +ERROR 21000: Operand should contain 1 column(s) > +insert into t1 values ('tttt'); > +select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1); > +s1 > +tttt > +explain extended (select * from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 > +Warnings: > +Note 1003 (select 'tttt' AS `s1` from `test`.`t1`) > +(select * from t1); > +s1 > +tttt > +drop table t1; > +create table t1 (s1 char(5), index s1(s1)); > +create table t2 (s1 char(5), index s1(s1)); > +insert into t1 values ('a1'),('a2'),('a3'); > +insert into t2 values ('a1'),('a2'); > +select s1, s1 NOT IN (SELECT s1 FROM t2) from t1; > +s1 s1 NOT IN (SELECT s1 FROM t2) > +a1 0 > +a2 0 > +a3 1 > +select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > +s1 s1 = ANY (SELECT s1 FROM t2) > +a1 1 > +a2 1 > +a3 0 > +select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > +s1 s1 <> ALL (SELECT s1 FROM t2) > +a1 0 > +a2 0 > +a3 1 > +select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > +s1 s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') > +a1 0 > +a2 1 > +a3 1 > +explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > +2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > +Warnings: > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +drop table t1,t2; > +create table t2 (a int, b int); > +create table t3 (a int); > +insert into t3 values (6),(7),(3); > +select * from t3 where a >= all (select b from t2); > +a > +6 > +7 > +3 > +explain extended select * from t3 where a >= all (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))) > +select * from t3 where a >= some (select b from t2); > +a > +explain extended select * from t3 where a >= some (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where a >= all (select b from t2 group by 1); > +a > +6 > +7 > +3 > +explain extended select * from t3 where a >= all (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` < <max>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where a >= some (select b from t2 group by 1); > +a > +explain extended select * from t3 where a >= some (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` >= <min>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where NULL >= any (select b from t2); > +a > +explain extended select * from t3 where NULL >= any (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where NULL >= any (select b from t2 group by 1); > +a > +explain extended select * from t3 where NULL >= any (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1)))) > +select * from t3 where NULL >= some (select b from t2); > +a > +explain extended select * from t3 where NULL >= some (select b from t2); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= (select min(NULL) from `test`.`t2`)))) > +select * from t3 where NULL >= some (select b from t2 group by 1); > +a > +explain extended select * from t3 where NULL >= some (select b from t2 group by 1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 > +2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(NULL >= <min>(select NULL from `test`.`t2` group by 1)))) > +insert into t2 values (2,2), (2,1), (3,3), (3,1); > +select * from t3 where a > all (select max(b) from t2 group by a); > +a > +6 > +7 > +explain extended select * from t3 where a > all (select max(b) from t2 group by a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where > +2 SUBQUERY t2 ALL NULL NULL NULL NULL 4 100.00 Using temporary > +Warnings: > +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(`test`.`t3`.`a` <= <max>(select max(`test`.`t2`.`b`) from `test`.`t2` group by `test`.`t2`.`a`)))) > +drop table t2, t3; > +CREATE TABLE `t1` ( `id` mediumint(9) NOT NULL auto_increment, `taskid` bigint(20) NOT NULL default '0', `dbid` int(11) NOT NULL default '0', `create_date` datetime NOT NULL default '0000-00-00 00:00:00', `last_update` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`id`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=3 ; > +INSERT INTO `t1` (`id`, `taskid`, `dbid`, `create_date`,`last_update`) VALUES (1, 1, 15, '2003-09-29 10:31:36', '2003-09-29 10:31:36'), (2, 1, 21, now(), now()); > +CREATE TABLE `t2` (`db_id` int(11) NOT NULL auto_increment,`name` varchar(200) NOT NULL default '',`primary_uid` smallint(6) NOT NULL default '0',`secondary_uid` smallint(6) NOT NULL default '0',PRIMARY KEY (`db_id`),UNIQUE KEY `name_2` (`name`),FULLTEXT KEY `name` (`name`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2147483647; > +INSERT INTO `t2` (`db_id`, `name`, `primary_uid`, `secondary_uid`) VALUES (18, 'Not Set 1', 0, 0),(19, 'Valid', 1, 2),(20, 'Valid 2', 1, 2),(21, 'Should Not Return', 1, 2),(26, 'Not Set 2', 0, 0),(-1, 'ALL DB\'S', 0, 0); > +CREATE TABLE `t3` (`taskgenid` mediumint(9) NOT NULL auto_increment,`dbid` int(11) NOT NULL default '0',`taskid` int(11) NOT NULL default '0',`mon` tinyint(4) NOT NULL default '1',`tues` tinyint(4) NOT NULL default '1',`wed` tinyint(4) NOT NULL default '1',`thur` tinyint(4) NOT NULL default '1',`fri` tinyint(4) NOT NULL default '1',`sat` tinyint(4) NOT NULL default '0',`sun` tinyint(4) NOT NULL default '0',`how_often` smallint(6) NOT NULL default '1',`userid` smallint(6) NOT NULL default '0',`active` tinyint(4) NOT NULL default '1',PRIMARY KEY (`taskgenid`)) ENGINE=MyISAM CHARSET=latin1 AUTO_INCREMENT=2 ; > +INSERT INTO `t3` (`taskgenid`, `dbid`, `taskid`, `mon`, `tues`,`wed`, `thur`, `fri`, `sat`, `sun`, `how_often`, `userid`, `active`) VALUES (1,-1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1); > +CREATE TABLE `t4` (`task_id` smallint(6) NOT NULL default '0',`description` varchar(200) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO `t4` (`task_id`, `description`) VALUES (1, 'Daily Check List'),(2, 'Weekly Status'); > +select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid; > +dbid name (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') > +-1 Valid 1 > +-1 Valid 2 1 > +-1 Should Not Return 0 > +SELECT dbid, name FROM t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND ((date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')) AND t4.task_id = taskid; > +dbid name > +-1 Valid > +-1 Valid 2 > +drop table t1,t2,t3,t4; > +CREATE TABLE t1 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES (1),(5); > +CREATE TABLE t2 (id int(11) default NULL) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES (2),(6); > +select * from t1 where (1,2,6) in (select * from t2); > +ERROR 21000: Operand should contain 3 column(s) > +DROP TABLE t1,t2; > +create table t1 (s1 int); > +insert into t1 values (1); > +insert into t1 values (2); > +set sort_buffer_size = (select s1 from t1); > +ERROR 21000: Subquery returns more than 1 row > +do (select * from t1); > +Warnings: > +Error 1242 Subquery returns more than 1 row > +drop table t1; > +create table t1 (s1 char); > +insert into t1 values ('e'); > +select * from t1 where 'f' > any (select s1 from t1); > +s1 > +e > +select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1); > +s1 > +e > +explain extended select * from t1 where 'f' > any (select s1 from t1 union select s1 from t1); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00 > +2 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 > +3 UNION t1 system NULL NULL NULL NULL 1 100.00 > +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > +Warnings: > +Note 1003 select 'e' AS `s1` from `test`.`t1` where <nop>(<in_optimizer>('f',('f' > <min>(select 'e' from `test`.`t1` union select 'e' from `test`.`t1`)))) > +drop table t1; > +CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874'); > +CREATE TABLE t2 (code char(5) NOT NULL default '',UNIQUE KEY code (code)) ENGINE=MyISAM CHARSET=latin1; > +INSERT INTO t2 VALUES ('1'),('1226'),('1245'),('1862'),('18623'),('1874'),('1967'),('6'); > +select c.number as phone,(select p.code from t2 p where c.number like concat(p.code, '%') order by length(p.code) desc limit 1) as code from t1 c; > +phone code > +69294728265 6 > +18621828126 1862 > +89356874041 NULL > +95895001874 NULL > +drop table t1, t2; > +create table t1 (s1 int); > +create table t2 (s1 int); > +select * from t1 where (select count(*) from t2 where t1.s2) = 1; > +ERROR 42S22: Unknown column 't1.s2' in 'where clause' > +select * from t1 where (select count(*) from t2 group by t1.s2) = 1; > +ERROR 42S22: Unknown column 't1.s2' in 'group statement' > +select count(*) from t2 group by t1.s2; > +ERROR 42S22: Unknown column 't1.s2' in 'group statement' > +drop table t1, t2; > +CREATE TABLE t1(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC VARCHAR(20) DEFAULT NULL,PRIMARY KEY (COLA, COLB)); > +CREATE TABLE t2(COLA FLOAT NOT NULL,COLB FLOAT NOT NULL,COLC CHAR(1) NOT NULL,PRIMARY KEY (COLA)); > +INSERT INTO t1 VALUES (1,1,'1A3240'), (1,2,'4W2365'); > +INSERT INTO t2 VALUES (100, 200, 'C'); > +SELECT DISTINCT COLC FROM t1 WHERE COLA = (SELECT COLA FROM t2 WHERE COLB = 200 AND COLC ='C' LIMIT 1); > +COLC > +DROP TABLE t1, t2; > +CREATE TABLE t1 (a int(1)); > +INSERT INTO t1 VALUES (1),(1),(1),(1),(1),(2),(3),(4),(5); > +SELECT DISTINCT (SELECT a) FROM t1 LIMIT 100; > +(SELECT a) > +1 > +2 > +3 > +4 > +5 > +DROP TABLE t1; > +create table t1 (a int, b decimal(13, 3)); > +insert into t1 values (1, 0.123); > +select a, (select max(b) from t1) into outfile "../../tmp/subselect.out.file.1" from t1; > +delete from t1; > +load data infile "../../tmp/subselect.out.file.1" into table t1; > +select * from t1; > +a b > +1 0.123 > +drop table t1; > +CREATE TABLE `t1` ( > +`id` int(11) NOT NULL auto_increment, > +`id_cns` tinyint(3) unsigned NOT NULL default '0', > +`tipo` enum('','UNO','DUE') NOT NULL default '', > +`anno_dep` smallint(4) unsigned zerofill NOT NULL default '0000', > +`particolare` mediumint(8) unsigned NOT NULL default '0', > +`generale` mediumint(8) unsigned NOT NULL default '0', > +`bis` tinyint(3) unsigned NOT NULL default '0', > +PRIMARY KEY (`id`), > +UNIQUE KEY `idx_cns_gen_anno` (`anno_dep`,`id_cns`,`generale`,`particolare`), > +UNIQUE KEY `idx_cns_par_anno` (`id_cns`,`anno_dep`,`tipo`,`particolare`,`bis`) > +); > +INSERT INTO `t1` VALUES (1,16,'UNO',1987,2048,9681,0),(2,50,'UNO',1987,1536,13987,0),(3,16,'UNO',1987,2432,14594,0),(4,16,'UNO',1987,1792,13422,0),(5,16,'UNO',1987,1025,10240,0),(6,16,'UNO',1987,1026,7089,0); > +CREATE TABLE `t2` ( > +`id` tinyint(3) unsigned NOT NULL auto_increment, > +`max_anno_dep` smallint(6) unsigned NOT NULL default '0', > +PRIMARY KEY (`id`) > +); > +INSERT INTO `t2` VALUES (16,1987),(50,1990),(51,1990); > +SELECT cns.id, cns.max_anno_dep, cns.max_anno_dep = (SELECT s.anno_dep FROM t1 AS s WHERE s.id_cns = cns.id ORDER BY s.anno_dep DESC LIMIT 1) AS PIPPO FROM t2 AS cns; > +id max_anno_dep PIPPO > +16 1987 1 > +50 1990 0 > +51 1990 NULL > +DROP TABLE t1, t2; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +SET SQL_SELECT_LIMIT=1; > +select sum(a) from (select * from t1) as a; > +sum(a) > +6 > +select 2 in (select * from t1); > +2 in (select * from t1) > +1 > +SET SQL_SELECT_LIMIT=default; > +drop table t1; > +CREATE TABLE t1 (a int, b int, INDEX (a)); > +INSERT INTO t1 VALUES (1, 1), (1, 2), (1, 3); > +SELECT * FROM t1 WHERE a = (SELECT MAX(a) FROM t1 WHERE a = 1) ORDER BY b; > +a b > +1 1 > +1 2 > +1 3 > +DROP TABLE t1; > +create table t1(val varchar(10)); > +insert into t1 values ('aaa'), ('bbb'),('eee'),('mmm'),('ppp'); > +select count(*) from t1 as w1 where w1.val in (select w2.val from t1 as w2 where w2.val like 'm%') and w1.val in (select w3.val from t1 as w3 where w3.val like 'e%'); > +count(*) > +0 > +drop table t1; > +create table t1 (id int not null, text varchar(20) not null default '', primary key (id)); > +insert into t1 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text11'), (12, 'text12'); > +select * from t1 where id not in (select id from t1 where id < 8); > +id text > +8 text8 > +9 text9 > +10 text10 > +11 text11 > +12 text12 > +select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > +id text > +8 text8 > +9 text9 > +10 text10 > +11 text11 > +12 text12 > +explain extended select * from t1 where id not in (select id from t1 where id < 8); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > +2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > +Warnings: > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > +2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > +Warnings: > +Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > +create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > +insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > +select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id); > +id text id text id text > +1 text1 1 text1 1 text1 > +2 text2 2 text2 2 text2 > +3 text3 3 text3 3 text3 > +4 text4 4 text4 4 text4 > +5 text5 5 text5 5 text5 > +6 text6 6 text6 6 text6 > +7 text7 7 text7 7 text7 > +8 text8 8 text8 8 text8 > +9 text9 9 text9 9 text9 > +10 text10 10 text10 10 text10 > +11 text11 11 text1 11 text11 > +12 text12 12 text2 12 text12 > +1000 text1000 NULL NULL 1000 text1000 > +1001 text1001 NULL NULL 1000 text1000 > +explain extended select * from t1 a left join t2 b on (a.id=b.id or b.id is null) join t1 c on (if(isnull(b.id), 1000, b.id)=c.id); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 SIMPLE a ALL NULL NULL NULL NULL 14 100.00 > +1 SIMPLE b eq_ref PRIMARY PRIMARY 4 test.a.id 2 100.00 > +1 SIMPLE c eq_ref PRIMARY PRIMARY 4 func 1 100.00 Using index condition > +Warnings: > +Note 1003 select `test`.`a`.`id` AS `id`,`test`.`a`.`text` AS `text`,`test`.`b`.`id` AS `id`,`test`.`b`.`text` AS `text`,`test`.`c`.`id` AS `id`,`test`.`c`.`text` AS `text` from `test`.`t1` `a` left join `test`.`t2` `b` on(((`test`.`b`.`id` = `test`.`a`.`id`) or isnull(`test`.`b`.`id`))) join `test`.`t1` `c` where (if(isnull(`test`.`b`.`id`),1000,`test`.`b`.`id`) = `test`.`c`.`id`) > +drop table t1,t2; > +create table t1 (a int); > +insert into t1 values (1); > +explain select benchmark(1000, (select a from t1 where a=sha(rand()))); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used > +2 UNCACHEABLE SUBQUERY t1 system NULL NULL NULL NULL 1 > +drop table t1; > +create table t1(id int); > +create table t2(id int); > +create table t3(flag int); > +select (select * from t3 where id not null) from t1, t2; > +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'null) from t1, t2' at line 1 > +drop table t1,t2,t3; > +CREATE TABLE t1 (id INT); > +CREATE TABLE t2 (id INT); > +INSERT INTO t1 VALUES (1), (2); > +INSERT INTO t2 VALUES (1); > +SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id); > +id c > +1 1 > +2 0 > +SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id); > +id c > +1 1 > +2 0 > +SELECT t1.id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY t1.id; > +id c > +1 1 > +2 0 > +SELECT id, ( SELECT COUNT(t.id) FROM t2 AS t WHERE t.id = t1.id ) AS c FROM t1 LEFT JOIN t2 USING (id) ORDER BY id; > +id c > +1 1 > +2 0 > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( a int, b int ); > +INSERT INTO t1 VALUES (1,1),(2,2),(3,3); > +SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +ALTER TABLE t1 ADD INDEX (a); > +SELECT a FROM t1 WHERE a > ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL ( SELECT a FROM t1 WHERE b = 2 ); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 UNION SELECT a FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 HAVING a = 2 UNION SELECT a FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE a > ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE a > ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) > ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) <> ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 2 column(s) > +SELECT a FROM t1 WHERE a = ANY (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) = ANY (SELECT a,2 FROM t1 WHERE b = 2); > +a > +SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 2 column(s) > +SELECT a FROM t1 WHERE a <> ALL (SELECT a,2 FROM t1 WHERE b = 2); > +ERROR 21000: Operand should contain 1 column(s) > +SELECT a FROM t1 WHERE (1,2) <> ALL (SELECT a,2 FROM t1 WHERE b = 2); > +a > +1 > +2 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 WHERE b = 2 UNION SELECT a,1 FROM t1 WHERE b = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE (a,1) = ANY (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE (a,1) <> ALL (SELECT a,1 FROM t1 HAVING a = 2 UNION SELECT a,1 FROM t1 HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2 group by a); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 group by a HAVING a = 2); > +a > +1 > +3 > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a > t1.a), '-') > +0- > +0- > +1- > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a < t1.a), '-') > +1- > +0- > +0- > +SELECT concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-') from t1 a; > +concat(EXISTS(SELECT a FROM t1 WHERE b = 2 and a.a = t1.a), '-') > +0- > +1- > +0- > +DROP TABLE t1; > +CREATE TABLE t1 ( a double, b double ); > +INSERT INTO t1 VALUES (1,1),(2,2),(3,3); > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = 2e0); > +a > +1 > +3 > +DROP TABLE t1; > +CREATE TABLE t1 ( a char(1), b char(1)); > +INSERT INTO t1 VALUES ('1','1'),('2','2'),('3','3'); > +SELECT a FROM t1 WHERE a > ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +3 > +SELECT a FROM t1 WHERE a < ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +SELECT a FROM t1 WHERE a = ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +SELECT a FROM t1 WHERE a >= ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ANY (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +3 > +SELECT a FROM t1 WHERE a > ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +3 > +SELECT a FROM t1 WHERE a < ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +SELECT a FROM t1 WHERE a = ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +SELECT a FROM t1 WHERE a >= ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +2 > +3 > +SELECT a FROM t1 WHERE a <= ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +2 > +SELECT a FROM t1 WHERE a <> ALL (SELECT a FROM t1 WHERE b = '2'); > +a > +1 > +3 > +DROP TABLE t1; > +create table t1 (a int, b int); > +insert into t1 values (1,2),(3,4); > +select * from t1 up where exists (select * from t1 where t1.a=up.a); > +a b > +1 2 > +3 4 > +explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY up ALL NULL NULL NULL NULL 2 100.00 Using where > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > +Warnings: > +Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +drop table t1; > +CREATE TABLE t1 (t1_a int); > +INSERT INTO t1 VALUES (1); > +CREATE TABLE t2 (t2_a int, t2_b int, PRIMARY KEY (t2_a, t2_b)); > +INSERT INTO t2 VALUES (1, 1), (1, 2); > +SELECT * FROM t1, t2 table2 WHERE t1_a = 1 AND table2.t2_a = 1 > +HAVING table2.t2_b = (SELECT MAX(t2_b) FROM t2 WHERE t2_a = table2.t2_a); > +t1_a t2_a t2_b > +1 1 2 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (id int(11) default NULL,name varchar(10) default NULL); > +INSERT INTO t1 VALUES (1,'Tim'),(2,'Rebecca'),(3,NULL); > +CREATE TABLE t2 (id int(11) default NULL, pet varchar(10) default NULL); > +INSERT INTO t2 VALUES (1,'Fido'),(2,'Spot'),(3,'Felix'); > +SELECT a.*, b.* FROM (SELECT * FROM t1) AS a JOIN t2 as b on a.id=b.id; > +id name id pet > +1 Tim 1 Fido > +2 Rebecca 2 Spot > +3 NULL 3 Felix > +drop table t1,t2; > +CREATE TABLE t1 ( a int, b int ); > +CREATE TABLE t2 ( c int, d int ); > +INSERT INTO t1 VALUES (1,2), (2,3), (3,4); > +SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +abc b > +1 2 > +2 3 > +3 4 > +INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +select * from t2; > +c d > +1 2 > +2 3 > +3 4 > +CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b = > +(SELECT MIN(b) FROM t1 WHERE a=outr.a); > +select * from t3; > +abc b > +1 2 > +2 3 > +3 4 > +prepare stmt1 from "INSERT INTO t2 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);"; > +execute stmt1; > +deallocate prepare stmt1; > +select * from t2; > +c d > +1 2 > +2 3 > +3 4 > +1 2 > +2 3 > +3 4 > +drop table t3; > +prepare stmt1 from "CREATE TABLE t3 SELECT a AS abc, b FROM t1 outr WHERE b = (SELECT MIN(b) FROM t1 WHERE a=outr.a);"; > +execute stmt1; > +select * from t3; > +abc b > +1 2 > +2 3 > +3 4 > +deallocate prepare stmt1; > +DROP TABLE t1, t2, t3; > +CREATE TABLE `t1` ( `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1; > +insert into t1 values (1); > +CREATE TABLE `t2` ( `b` int(11) default NULL, `a` int(11) default NULL) ENGINE=MyISAM DEFAULT CHARSET=latin1; > +insert into t2 values (1,2); > +select t000.a, count(*) `C` FROM t1 t000 GROUP BY t000.a HAVING count(*) > ALL (SELECT count(*) FROM t2 t001 WHERE t001.a=1); > +a C > +1 1 > +drop table t1,t2; > +create table t1 (a int not null auto_increment primary key, b varchar(40), fulltext(b)); > +insert into t1 (b) values ('ball'),('ball games'), ('games'), ('foo'), ('foobar'), ('Serg'), ('Sergei'),('Georg'), ('Patrik'),('Hakan'); > +create table t2 (a int); > +insert into t2 values (1),(3),(2),(7); > +select a,b from t1 where match(b) against ('Ball') > 0; > +a b > +1 ball > +2 ball games > +select a from t2 where a in (select a from t1 where match(b) against ('Ball') > 0); > +a > +1 > +2 > +drop table t1,t2; > +CREATE TABLE t1(`IZAVORGANG_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`KUERZEL` VARCHAR(10) CHARACTER SET latin1 COLLATE latin1_bin,`IZAANALYSEART_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin,`IZAPMKZ_ID` VARCHAR(11) CHARACTER SET latin1 COLLATE latin1_bin); > +CREATE INDEX AK01IZAVORGANG ON t1(izaAnalyseart_id,Kuerzel); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000001','601','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000002','602','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000003','603','D0000000001','I0000000001'); > +INSERT INTO t1(`IZAVORGANG_ID`,`KUERZEL`,`IZAANALYSEART_ID`,`IZAPMKZ_ID`)VALUES('D0000000004','101','D0000000001','I0000000001'); > +SELECT `IZAVORGANG_ID` FROM t1 WHERE `KUERZEL` IN(SELECT MIN(`KUERZEL`)`Feld1` FROM t1 WHERE `KUERZEL` LIKE'601%'And`IZAANALYSEART_ID`='D0000000001'); > +IZAVORGANG_ID > +D0000000001 > +drop table t1; > +CREATE TABLE `t1` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY (`aid`,`bid`)); > +CREATE TABLE `t2` ( `aid` int(11) NOT NULL default '0', `bid` int(11) NOT NULL default '0', PRIMARY KEY (`aid`,`bid`)); > +insert into t1 values (1,1),(1,2),(2,1),(2,2); > +insert into t2 values (1,2),(2,2); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +alter table t2 drop primary key; > +alter table t2 add key KEY1 (aid, bid); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +alter table t2 drop key KEY1; > +alter table t2 add primary key (bid, aid); > +select * from t1 where t1.aid not in (select aid from t2 where bid=t1.bid); > +aid bid > +1 1 > +2 1 > +drop table t1,t2; > +CREATE TABLE t1 (howmanyvalues bigint, avalue int); > +INSERT INTO t1 VALUES (1, 1),(2, 1),(2, 2),(3, 1),(3, 2),(3, 3),(4, 1),(4, 2),(4, 3),(4, 4); > +SELECT howmanyvalues, count(*) from t1 group by howmanyvalues; > +howmanyvalues count(*) > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +CREATE INDEX t1_howmanyvalues_idx ON t1 (howmanyvalues); > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues+1 = a.howmanyvalues+1) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.howmanyvalues) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 2 > +3 3 > +4 4 > +SELECT a.howmanyvalues, (SELECT count(*) from t1 b where b.howmanyvalues = a.avalue) as mycount from t1 a group by a.howmanyvalues; > +howmanyvalues mycount > +1 1 > +2 1 > +3 1 > +4 1 > +drop table t1; > +create table t1 (x int); > +select (select b.x from t1 as b where b.x=a.x) from t1 as a where a.x=2 group by a.x; > +(select b.x from t1 as b where b.x=a.x) > +drop table t1; > +CREATE TABLE `t1` ( `master` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `slave` int(10) unsigned NOT NULL default '0', `access` int(10) unsigned NOT NULL default '0', UNIQUE KEY `access_u` (`master`,`map`,`slave`)); > +INSERT INTO `t1` VALUES (1,0,0,700),(1,1,1,400),(1,5,5,400),(1,12,12,400),(1,12,32,400),(4,12,32,400); > +CREATE TABLE `t2` ( `id` int(10) unsigned NOT NULL default '0', `pid` int(10) unsigned NOT NULL default '0', `map` smallint(6) unsigned NOT NULL default '0', `level` tinyint(4) unsigned NOT NULL default '0', `title` varchar(255) default NULL, PRIMARY KEY (`id`,`pid`,`map`), KEY `level` (`level`), KEY `id` (`id`,`map`)) ; > +INSERT INTO `t2` VALUES (6,5,12,7,'a'),(12,0,0,7,'a'),(12,1,0,7,'a'),(12,5,5,7,'a'),(12,5,12,7,'a'); > +SELECT b.sc FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b; > +ERROR 42S22: Unknown column 'b.sc' in 'field list' > +SELECT b.ac FROM (SELECT (SELECT a.access FROM t1 a WHERE a.map = op.map AND a.slave = op.pid AND a.master = 1) ac FROM t2 op WHERE op.id = 12 AND op.map = 0) b; > +ac > +700 > +NULL > +drop tables t1,t2; > +create table t1 (a int not null, b int not null, c int, primary key (a,b)); > +insert into t1 values (1,1,1), (2,2,2), (3,3,3); > +set @b:= 0; > +explain select sum(a) from t1 where b > @b; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 index NULL PRIMARY 8 NULL 3 Using where; Using index > +set @a:= (select sum(a) from t1 where b > @b); > +explain select a from t1 where c=2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where > +do @a:= (select sum(a) from t1 where b > @b); > +explain select a from t1 where c=2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where > +drop table t1; > +set @got_val= (SELECT 1 FROM (SELECT 'A' as my_col) as T1 ) ; > +create table t1 (a int, b int); > +create table t2 (a int, b int); > +insert into t1 values (1,1),(1,2),(1,3),(2,4),(2,5); > +insert into t2 values (1,3),(2,1); > +select distinct a,b, (select max(b) from t2 where t1.b=t2.a) from t1 order by t1.b; > +a b (select max(b) from t2 where t1.b=t2.a) > +1 1 3 > +1 2 1 > +1 3 NULL > +2 4 NULL > +2 5 NULL > +drop table t1, t2; > +create table t1 (id int); > +create table t2 (id int, body text, fulltext (body)); > +insert into t1 values(1),(2),(3); > +insert into t2 values (1,'test'), (2,'mysql'), (3,'test'), (4,'test'); > +select count(distinct id) from t1 where id in (select id from t2 where match(body) against ('mysql' in boolean mode)); > +count(distinct id) > +1 > +drop table t2,t1; > +create table t1 (s1 int,s2 int); > +insert into t1 values (20,15); > +select * from t1 where (('a',null) <=> (select 'a',s2 from t1 where s1 = 0)); > +s1 s2 > +drop table t1; > +create table t1 (s1 int); > +insert into t1 values (1),(null); > +select * from t1 where s1 < all (select s1 from t1); > +s1 > +select s1, s1 < all (select s1 from t1) from t1; > +s1 s1 < all (select s1 from t1) > +1 0 > +NULL NULL > +drop table t1; > +CREATE TABLE t1 ( > +Code char(3) NOT NULL default '', > +Name char(52) NOT NULL default '', > +Continent enum('Asia','Europe','North America','Africa','Oceania','Antarctica','South America') NOT NULL default 'Asia', > +Region char(26) NOT NULL default '', > +SurfaceArea float(10,2) NOT NULL default '0.00', > +IndepYear smallint(6) default NULL, > +Population int(11) NOT NULL default '0', > +LifeExpectancy float(3,1) default NULL, > +GNP float(10,2) default NULL, > +GNPOld float(10,2) default NULL, > +LocalName char(45) NOT NULL default '', > +GovernmentForm char(45) NOT NULL default '', > +HeadOfState char(60) default NULL, > +Capital int(11) default NULL, > +Code2 char(2) NOT NULL default '' > +) ENGINE=MyISAM; > +INSERT INTO t1 VALUES ('XXX','Xxxxx','Oceania','Xxxxxx',26.00,0,0,0,0,0,'Xxxxx','Xxxxx','Xxxxx',NULL,'XX'); > +INSERT INTO t1 VALUES ('ASM','American Samoa','Oceania','Polynesia',199.00,0,68000,75.1,334.00,NULL,'Amerika Samoa','US Territory','George W. Bush',54,'AS'); > +INSERT INTO t1 VALUES ('ATF','French Southern territories','Antarctica','Antarctica',7780.00,0,0,NULL,0.00,NULL,'Terres australes françaises','Nonmetropolitan Territory of France','Jacques Chirac',NULL,'TF'); > +INSERT INTO t1 VALUES ('UMI','United States Minor Outlying Islands','Oceania','Micronesia/Caribbean',16.00,0,0,NULL,0.00,NULL,'United States Minor Outlying Islands','Dependent Territory of the US','George W. Bush',NULL,'UM'); > +/*!40000 ALTER TABLE t1 ENABLE KEYS */; > +SELECT DISTINCT Continent AS c FROM t1 outr WHERE > +Code <> SOME ( SELECT Code FROM t1 WHERE Continent = outr.Continent AND > +Population < 200); > +c > +Oceania > +drop table t1; > +create table t1 (a1 int); > +create table t2 (b1 int); > +select * from t1 where a2 > any(select b1 from t2); > +ERROR 42S22: Unknown column 'a2' in 'IN/ALL/ANY subquery' > +select * from t1 where a1 > any(select b1 from t2); > +a1 > +drop table t1,t2; > +create table t1 (a integer, b integer); > +select (select * from t1) = (select 1,2); > +(select * from t1) = (select 1,2) > +NULL > +select (select 1,2) = (select * from t1); > +(select 1,2) = (select * from t1) > +NULL > +select row(1,2) = ANY (select * from t1); > +row(1,2) = ANY (select * from t1) > +0 > +select row(1,2) != ALL (select * from t1); > +row(1,2) != ALL (select * from t1) > +1 > +drop table t1; > +create table t1 (a integer, b integer); > +select row(1,(2,2)) in (select * from t1 ); > +ERROR 21000: Operand should contain 2 column(s) > +select row(1,(2,2)) = (select * from t1 ); > +ERROR 21000: Operand should contain 2 column(s) > +select (select * from t1) = row(1,(2,2)); > +ERROR 21000: Operand should contain 1 column(s) > +drop table t1; > +create table t1 (a integer); > +insert into t1 values (1); > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx ; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 as xx, 1 = ALL ( select 1 from t1 where 1 = xx ); > +xx 1 = ALL ( select 1 from t1 where 1 = xx ) > +1 1 > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +select 1 = ALL (select 1 from t1 where 1 = xx ), 1 as xx from DUAL; > +ERROR 42S22: Reference 'xx' not supported (forward reference in item list) > +drop table t1; > +CREATE TABLE t1 ( > +categoryId int(11) NOT NULL, > +courseId int(11) NOT NULL, > +startDate datetime NOT NULL, > +endDate datetime NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL, > +attributes text NOT NULL > +); > +INSERT INTO t1 VALUES (1,41,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''), > +(1,86,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(1,87,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(2,52,'2004-03-15','2004-10-01','2004-03-15','2004-09-17',''), > +(2,53,'2004-03-16','2004-10-01','2004-03-16','2004-09-17',''), > +(2,88,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(2,89,'2004-08-16','2004-08-16','2004-08-16','2004-08-16',''), > +(3,51,'2004-02-09','2010-01-01','2004-02-09','2004-02-09',''), > +(5,12,'2004-02-18','2010-01-01','2004-02-18','2004-02-18',''); > +CREATE TABLE t2 ( > +userId int(11) NOT NULL, > +courseId int(11) NOT NULL, > +date datetime NOT NULL > +); > +INSERT INTO t2 VALUES (5141,71,'2003-11-18'), > +(5141,72,'2003-11-25'),(5141,41,'2004-08-06'), > +(5141,52,'2004-08-06'),(5141,53,'2004-08-06'), > +(5141,12,'2004-08-06'),(5141,86,'2004-10-21'), > +(5141,87,'2004-10-21'),(5141,88,'2004-10-21'), > +(5141,89,'2004-10-22'),(5141,51,'2004-10-26'); > +CREATE TABLE t3 ( > +groupId int(11) NOT NULL, > +parentId int(11) NOT NULL, > +startDate datetime NOT NULL, > +endDate datetime NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL, > +ordering int(11) > +); > +INSERT INTO t3 VALUES (12,9,'1000-01-01','3999-12-31','2004-01-29','2004-01-29',NULL); > +CREATE TABLE t4 ( > +id int(11) NOT NULL, > +groupTypeId int(11) NOT NULL, > +groupKey varchar(50) NOT NULL, > +name text, > +ordering int(11), > +description text, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL > +); > +INSERT INTO t4 VALUES (9,5,'stationer','stationer',0,'Stationer','2004-01-29','2004-01-29'), > +(12,5,'group2','group2',0,'group2','2004-01-29','2004-01-29'); > +CREATE TABLE t5 ( > +userId int(11) NOT NULL, > +groupId int(11) NOT NULL, > +createDate datetime NOT NULL, > +modifyDate timestamp NOT NULL > +); > +INSERT INTO t5 VALUES (5141,12,'2004-08-06','2004-08-06'); > +select > +count(distinct t2.userid) pass, > +groupstuff.*, > +count(t2.courseid) crse, > +t1.categoryid, > +t2.courseid, > +date_format(date, '%b%y') as colhead > +from t2 > +join t1 on t2.courseid=t1.courseid > +join > +( > +select > +t5.userid, > +parentid, > +parentgroup, > +childid, > +groupname, > +grouptypeid > +from t5 > +join > +( > +select t4.id as parentid, > +t4.name as parentgroup, > +t4.id as childid, > +t4.name as groupname, > +t4.grouptypeid > +from t4 > +) as gin on t5.groupid=gin.childid > +) as groupstuff on t2.userid = groupstuff.userid > +group by > +groupstuff.groupname, colhead , t2.courseid; > +pass userid parentid parentgroup childid groupname grouptypeid crse categoryid courseid colhead > +1 5141 12 group2 12 group2 5 1 5 12 Aug04 > +1 5141 12 group2 12 group2 5 1 1 41 Aug04 > +1 5141 12 group2 12 group2 5 1 2 52 Aug04 > +1 5141 12 group2 12 group2 5 1 2 53 Aug04 > +1 5141 12 group2 12 group2 5 1 3 51 Oct04 > +1 5141 12 group2 12 group2 5 1 1 86 Oct04 > +1 5141 12 group2 12 group2 5 1 1 87 Oct04 > +1 5141 12 group2 12 group2 5 1 2 88 Oct04 > +1 5141 12 group2 12 group2 5 1 2 89 Oct04 > +drop table t1, t2, t3, t4, t5; > +create table t1 (a int); > +insert into t1 values (1), (2), (3); > +SELECT 1 FROM t1 WHERE (SELECT 1) in (SELECT 1); > +1 > +1 > +1 > +1 > +drop table t1; > +create table t1 (a int); > +create table t2 (a int); > +insert into t1 values (1),(2); > +insert into t2 values (0),(1),(2),(3); > +select a from t2 where a in (select a from t1); > +a > +1 > +2 > +select a from t2 having a in (select a from t1); > +a > +1 > +2 > +prepare stmt1 from "select a from t2 where a in (select a from t1)"; > +execute stmt1; > +a > +1 > +2 > +execute stmt1; > +a > +1 > +2 > +deallocate prepare stmt1; > +prepare stmt1 from "select a from t2 having a in (select a from t1)"; > +execute stmt1; > +a > +1 > +2 > +execute stmt1; > +a > +1 > +2 > +deallocate prepare stmt1; > +drop table t1, t2; > +create table t1 (a int, b int); > +insert into t1 values (1,2); > +select 1 = (select * from t1); > +ERROR 21000: Operand should contain 1 column(s) > +select (select * from t1) = 1; > +ERROR 21000: Operand should contain 2 column(s) > +select (1,2) = (select a from t1); > +ERROR 21000: Operand should contain 2 column(s) > +select (select a from t1) = (1,2); > +ERROR 21000: Operand should contain 1 column(s) > +select (1,2,3) = (select * from t1); > +ERROR 21000: Operand should contain 3 column(s) > +select (select * from t1) = (1,2,3); > +ERROR 21000: Operand should contain 2 column(s) > +drop table t1; > +CREATE TABLE `t1` ( > +`itemid` bigint(20) unsigned NOT NULL auto_increment, > +`sessionid` bigint(20) unsigned default NULL, > +`time` int(10) unsigned NOT NULL default '0', > +`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT > +NULL default '', > +`data` text collate latin1_general_ci NOT NULL, > +PRIMARY KEY (`itemid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t1` VALUES (1, 1, 1, 'D', ''); > +CREATE TABLE `t2` ( > +`sessionid` bigint(20) unsigned NOT NULL auto_increment, > +`pid` int(10) unsigned NOT NULL default '0', > +`date` int(10) unsigned NOT NULL default '0', > +`ip` varchar(15) collate latin1_general_ci NOT NULL default '', > +PRIMARY KEY (`sessionid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1'); > +SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30; > +ip count( e.itemid ) > +10.10.10.1 1 > +drop tables t1,t2; > +create table t1 (fld enum('0','1')); > +insert into t1 values ('1'); > +select * from (select max(fld) from t1) as foo; > +max(fld) > +1 > +drop table t1; > +CREATE TABLE t1 (one int, two int, flag char(1)); > +CREATE TABLE t2 (one int, two int, flag char(1)); > +INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N'); > +INSERT INTO t2 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N'); > +SELECT * FROM t1 > +WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t2 WHERE flag = 'N'); > +one two flag > +5 6 N > +7 8 N > +SELECT * FROM t1 > +WHERE ROW(one,two) IN (SELECT DISTINCT one,two FROM t1 WHERE flag = 'N'); > +one two flag > +5 6 N > +7 8 N > +insert into t2 values (null,null,'N'); > +insert into t2 values (null,3,'0'); > +insert into t2 values (null,5,'0'); > +insert into t2 values (10,null,'0'); > +insert into t1 values (10,3,'0'); > +insert into t1 values (10,5,'0'); > +insert into t1 values (10,10,'0'); > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N') as 'test' from t1; > +one two test > +1 2 NULL > +2 3 NULL > +3 4 NULL > +5 6 1 > +7 8 1 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > +one two > +5 6 > +7 8 > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N' group by one,two) as 'test' from t1; > +one two test > +1 2 NULL > +2 3 NULL > +3 4 NULL > +5 6 1 > +7 8 1 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1; > +one two test > +1 2 0 > +2 3 NULL > +3 4 0 > +5 6 0 > +7 8 0 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > +one two test > +1 2 0 > +2 3 NULL > +3 4 0 > +5 6 0 > +7 8 0 > +10 3 NULL > +10 5 NULL > +10 10 NULL > +explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +1 PRIMARY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; FirstMatch(t1) > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`two` = `test`.`t1`.`two`) and (`test`.`t2`.`one` = `test`.`t1`.`one`) and (`test`.`t2`.`flag` = 'N')) > +explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > +Warnings: > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a char(5), b char(5)); > +INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa'); > +SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb')); > +a b > +aaa aaa > +DROP TABLE t1; > +CREATE TABLE t1 (a int); > +CREATE TABLE t2 (a int, b int); > +CREATE TABLE t3 (b int NOT NULL); > +INSERT INTO t1 VALUES (1), (2), (3), (4); > +INSERT INTO t2 VALUES (1,10), (3,30); > +SELECT * FROM t2 LEFT JOIN t3 ON t2.b=t3.b > +WHERE t3.b IS NOT NULL OR t2.a > 10; > +a b b > +SELECT * FROM t1 > +WHERE t1.a NOT IN (SELECT a FROM t2 LEFT JOIN t3 ON t2.b=t3.b > +WHERE t3.b IS NOT NULL OR t2.a > 10); > +a > +1 > +2 > +3 > +4 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (f1 INT); > +CREATE TABLE t2 (f2 INT); > +INSERT INTO t1 VALUES (1); > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2); > +f1 > +1 > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE 1=0); > +f1 > +1 > +INSERT INTO t2 VALUES (1); > +INSERT INTO t2 VALUES (2); > +SELECT * FROM t1 WHERE f1 > ALL (SELECT f2 FROM t2 WHERE f2=0); > +f1 > +1 > +DROP TABLE t1, t2; > +select 1 from dual where 1 < any (select 2); > +1 > +1 > +select 1 from dual where 1 < all (select 2); > +1 > +1 > +select 1 from dual where 2 > any (select 1); > +1 > +1 > +select 1 from dual where 2 > all (select 1); > +1 > +1 > +select 1 from dual where 1 < any (select 2 from dual); > +1 > +1 > +select 1 from dual where 1 < all (select 2 from dual where 1!=1); > +1 > +1 > +create table t1 (s1 char); > +insert into t1 values (1),(2); > +select * from t1 where (s1 < any (select s1 from t1)); > +s1 > +1 > +select * from t1 where not (s1 < any (select s1 from t1)); > +s1 > +2 > +select * from t1 where (s1 < ALL (select s1+1 from t1)); > +s1 > +1 > +select * from t1 where not(s1 < ALL (select s1+1 from t1)); > +s1 > +2 > +select * from t1 where (s1+1 = ANY (select s1 from t1)); > +s1 > +1 > +select * from t1 where NOT(s1+1 = ANY (select s1 from t1)); > +s1 > +2 > +select * from t1 where (s1 = ALL (select s1/s1 from t1)); > +s1 > +1 > +select * from t1 where NOT(s1 = ALL (select s1/s1 from t1)); > +s1 > +2 > +drop table t1; > +create table t1 ( > +retailerID varchar(8) NOT NULL, > +statusID int(10) unsigned NOT NULL, > +changed datetime NOT NULL, > +UNIQUE KEY retailerID (retailerID, statusID, changed) > +); > +INSERT INTO t1 VALUES("0026", "1", "2005-12-06 12:18:56"); > +INSERT INTO t1 VALUES("0026", "2", "2006-01-06 12:25:53"); > +INSERT INTO t1 VALUES("0037", "1", "2005-12-06 12:18:56"); > +INSERT INTO t1 VALUES("0037", "2", "2006-01-06 12:25:53"); > +INSERT INTO t1 VALUES("0048", "1", "2006-01-06 12:37:50"); > +INSERT INTO t1 VALUES("0059", "1", "2006-01-06 12:37:50"); > +select * from t1 r1 > +where (r1.retailerID,(r1.changed)) in > +(SELECT r2.retailerId,(max(changed)) from t1 r2 > +group by r2.retailerId); > +retailerID statusID changed > +0026 2 2006-01-06 12:25:53 > +0037 2 2006-01-06 12:25:53 > +0048 1 2006-01-06 12:37:50 > +0059 1 2006-01-06 12:37:50 > +drop table t1; > +create table t1(a int, primary key (a)); > +insert into t1 values (10); > +create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b)); > +insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989'); > +explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 > +1 PRIMARY r const PRIMARY PRIMARY 4 const 1 > +2 DEPENDENT SUBQUERY t2 range b b 40 NULL 2 Using index condition > +SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10; > +a a b > +10 3 35989 > +explain SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 > +1 PRIMARY r const PRIMARY PRIMARY 4 const 1 > +2 DEPENDENT SUBQUERY t2 range b b 40 NULL 2 Using index condition > +SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r > +ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' > + ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10; > +a a b > +10 1 359 > +drop table t1,t2; > +CREATE TABLE t1 ( > +field1 int NOT NULL, > +field2 int NOT NULL, > +field3 int NOT NULL, > +PRIMARY KEY (field1,field2,field3) > +); > +CREATE TABLE t2 ( > +fieldA int NOT NULL, > +fieldB int NOT NULL, > +PRIMARY KEY (fieldA,fieldB) > +); > +INSERT INTO t1 VALUES > +(1,1,1), (1,1,2), (1,2,1), (1,2,2), (1,2,3), (1,3,1); > +INSERT INTO t2 VALUES (1,1), (1,2), (1,3); > +SELECT field1, field2, COUNT(*) > +FROM t1 GROUP BY field1, field2; > +field1 field2 COUNT(*) > +1 1 2 > +1 2 3 > +1 3 1 > +SELECT field1, field2 > +FROM t1 > +GROUP BY field1, field2 > +HAVING COUNT(*) >= ALL (SELECT fieldB > +FROM t2 WHERE fieldA = field1); > +field1 field2 > +1 2 > +SELECT field1, field2 > +FROM t1 > +GROUP BY field1, field2 > +HAVING COUNT(*) < ANY (SELECT fieldB > +FROM t2 WHERE fieldA = field1); > +field1 field2 > +1 1 > +1 3 > +DROP TABLE t1, t2; > +CREATE TABLE t1(a int, INDEX (a)); > +INSERT INTO t1 VALUES (1), (3), (5), (7); > +INSERT INTO t1 VALUES (NULL); > +CREATE TABLE t2(a int); > +INSERT INTO t2 VALUES (1),(2),(3); > +EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 ALL NULL NULL NULL NULL 3 > +2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 2 Using index; Full scan on NULL key > +SELECT a, a IN (SELECT a FROM t1) FROM t2; > +a a IN (SELECT a FROM t1) > +1 1 > +2 NULL > +3 1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a DATETIME); > +INSERT INTO t1 VALUES ('1998-09-23'), ('2003-03-25'); > +CREATE TABLE t2 AS SELECT > +(SELECT a FROM t1 WHERE a < '2000-01-01') AS sub_a > +FROM t1 WHERE a > '2000-01-01'; > +SHOW CREATE TABLE t2; > +Table Create Table > +t2 CREATE TABLE `t2` ( > + `sub_a` datetime DEFAULT NULL > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +CREATE TABLE t3 AS (SELECT a FROM t1 WHERE a < '2000-01-01') UNION (SELECT a FROM t1 WHERE a > '2000-01-01'); > +SHOW CREATE TABLE t3; > +Table Create Table > +t3 CREATE TABLE `t3` ( > + `a` datetime DEFAULT NULL > +) ENGINE=MyISAM DEFAULT CHARSET=latin1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (1), (2); > +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) > 0; > +a > +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; > +a > +1 > +2 > +EXPLAIN SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 > +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE > +DROP TABLE t1; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (2), (4), (1), (3); > +CREATE TABLE t2 (b int, c int); > +INSERT INTO t2 VALUES > +(2,1), (1,3), (2,1), (4,4), (2,2), (1,4); > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2 ); > +a > +2 > +4 > +1 > +3 > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 2), a; > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 ORDER BY (SELECT c FROM t2 WHERE b > 1), a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 2); > +b MAX(c) > +1 4 > +2 2 > +4 4 > +SELECT b, MAX(c) FROM t2 GROUP BY b, (SELECT c FROM t2 WHERE b > 1); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 2), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 1), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)) > 3; > +a > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)) > 3; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 2), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)); > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 1), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)); > +ERROR 21000: Subquery returns more than 1 row > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 2 ORDER BY b)); > +a > +1 > +2 > +3 > +4 > +SELECT a FROM t1 > +ORDER BY IFNULL((SELECT b FROM t2 WHERE b > 4), > +(SELECT c FROM t2 WHERE c=a AND b > 1 ORDER BY b)); > +ERROR 21000: Subquery returns more than 1 row > +DROP TABLE t1,t2; > +create table t1 (df decimal(5,1)); > +insert into t1 values(1.1); > +insert into t1 values(2.2); > +select * from t1 where df <= all (select avg(df) from t1 group by df); > +df > +1.1 > +select * from t1 where df >= all (select avg(df) from t1 group by df); > +df > +2.2 > +drop table t1; > +create table t1 (df decimal(5,1)); > +insert into t1 values(1.1); > +select 1.1 * exists(select * from t1); > +1.1 * exists(select * from t1) > +1.1 > +drop table t1; > +CREATE TABLE t1 ( > +grp int(11) default NULL, > +a decimal(10,2) default NULL); > +insert into t1 values (1, 1), (2, 2), (2, 3), (3, 4), (3, 5), (3, 6), (NULL, NULL); > +select * from t1; > +grp a > +1 1.00 > +2 2.00 > +2 3.00 > +3 4.00 > +3 5.00 > +3 6.00 > +NULL NULL > +select min(a) from t1 group by grp; > +min(a) > +NULL > +1.00 > +2.00 > +4.00 > +drop table t1; > +CREATE table t1 ( c1 integer ); > +INSERT INTO t1 VALUES ( 1 ); > +INSERT INTO t1 VALUES ( 2 ); > +INSERT INTO t1 VALUES ( 3 ); > +CREATE TABLE t2 ( c2 integer ); > +INSERT INTO t2 VALUES ( 1 ); > +INSERT INTO t2 VALUES ( 4 ); > +INSERT INTO t2 VALUES ( 5 ); > +SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2 WHERE c2 IN (1); > +c1 c2 > +1 1 > +SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2 > +WHERE c2 IN ( SELECT c2 FROM t2 WHERE c2 IN ( 1 ) ); > +c1 c2 > +1 1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( c1 integer ); > +INSERT INTO t1 VALUES ( 1 ); > +INSERT INTO t1 VALUES ( 2 ); > +INSERT INTO t1 VALUES ( 3 ); > +INSERT INTO t1 VALUES ( 6 ); > +CREATE TABLE t2 ( c2 integer ); > +INSERT INTO t2 VALUES ( 1 ); > +INSERT INTO t2 VALUES ( 4 ); > +INSERT INTO t2 VALUES ( 5 ); > +INSERT INTO t2 VALUES ( 6 ); > +CREATE TABLE t3 ( c3 integer ); > +INSERT INTO t3 VALUES ( 7 ); > +INSERT INTO t3 VALUES ( 8 ); > +SELECT c1,c2 FROM t1 LEFT JOIN t2 ON c1 = c2 > +WHERE EXISTS (SELECT c3 FROM t3 WHERE c2 IS NULL ); > +c1 c2 > +2 NULL > +3 NULL > +DROP TABLE t1,t2,t3; > +CREATE TABLE `t1` ( > +`itemid` bigint(20) unsigned NOT NULL auto_increment, > +`sessionid` bigint(20) unsigned default NULL, > +`time` int(10) unsigned NOT NULL default '0', > +`type` set('A','D','E','F','G','I','L','N','U') collate latin1_general_ci NOT > +NULL default '', > +`data` text collate latin1_general_ci NOT NULL, > +PRIMARY KEY (`itemid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t1` VALUES (1, 1, 1, 'D', ''); > +CREATE TABLE `t2` ( > +`sessionid` bigint(20) unsigned NOT NULL auto_increment, > +`pid` int(10) unsigned NOT NULL default '0', > +`date` int(10) unsigned NOT NULL default '0', > +`ip` varchar(15) collate latin1_general_ci NOT NULL default '', > +PRIMARY KEY (`sessionid`) > +) DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; > +INSERT INTO `t2` VALUES (1, 1, 1, '10.10.10.1'); > +SELECT s.ip, count( e.itemid ) FROM `t1` e JOIN t2 s ON s.sessionid = e.sessionid WHERE e.sessionid = ( SELECT sessionid FROM t2 ORDER BY sessionid DESC LIMIT 1 ) GROUP BY s.ip HAVING count( e.itemid ) >0 LIMIT 0 , 30; > +ip count( e.itemid ) > +10.10.10.1 1 > +drop tables t1,t2; > +CREATE TABLE t1 (EMPNUM CHAR(3)); > +CREATE TABLE t2 (EMPNUM CHAR(3) ); > +INSERT INTO t1 VALUES ('E1'),('E2'); > +INSERT INTO t2 VALUES ('E1'); > +DELETE FROM t1 > +WHERE t1.EMPNUM NOT IN > +(SELECT t2.EMPNUM > +FROM t2 > +WHERE t1.EMPNUM = t2.EMPNUM); > +select * from t1; > +EMPNUM > +E1 > +DROP TABLE t1,t2; > +CREATE TABLE t1(select_id BIGINT, values_id BIGINT); > +INSERT INTO t1 VALUES (1, 1); > +CREATE TABLE t2 (select_id BIGINT, values_id BIGINT, > +PRIMARY KEY(select_id,values_id)); > +INSERT INTO t2 VALUES (0, 1), (0, 2), (0, 3), (1, 5); > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id IN (1, 0)); > +values_id > +1 > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id BETWEEN 0 AND 1); > +values_id > +1 > +SELECT values_id FROM t1 > +WHERE values_id IN (SELECT values_id FROM t2 > +WHERE select_id = 0 OR select_id = 1); > +values_id > +1 > +DROP TABLE t1, t2; > +create table t1 (fld enum('0','1')); > +insert into t1 values ('1'); > +select * from (select max(fld) from t1) as foo; > +max(fld) > +1 > +drop table t1; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (c int, d int); > +CREATE TABLE t3 (e int); > +INSERT INTO t1 VALUES > +(1,10), (2,10), (1,20), (2,20), (3,20), (2,30), (4,40); > +INSERT INTO t2 VALUES > +(2,10), (2,20), (4,10), (5,10), (3,20), (2,40); > +INSERT INTO t3 VALUES (10), (30), (10), (20) ; > +SELECT a, MAX(b), MIN(b) FROM t1 GROUP BY a; > +a MAX(b) MIN(b) > +1 20 10 > +2 30 10 > +3 20 20 > +4 40 40 > +SELECT * FROM t2; > +c d > +2 10 > +2 20 > +4 10 > +5 10 > +3 20 > +2 40 > +SELECT * FROM t3; > +e > +10 > +30 > +10 > +20 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>20); > +a > +2 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)<d); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>d); > +a > +2 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE d >= SOME(SELECT e FROM t3 WHERE MAX(b)=e)); > +a > +2 > +3 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d)); > +a > +2 > +3 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE d > SOME(SELECT e FROM t3 WHERE MAX(b)=e)); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e < d)); > +a > +2 > +SELECT a FROM t1 GROUP BY a > +HAVING a IN (SELECT c FROM t2 > +WHERE MIN(b) < d AND > +EXISTS(SELECT e FROM t3 WHERE MAX(b)=e AND e <= d)); > +a > +2 > +SELECT a, SUM(a) FROM t1 GROUP BY a; > +a SUM(a) > +1 2 > +2 6 > +3 3 > +4 4 > +SELECT a FROM t1 > +WHERE EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c) GROUP BY a; > +a > +3 > +4 > +SELECT a FROM t1 GROUP BY a > +HAVING EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) = c); > +a > +1 > +3 > +4 > +SELECT a FROM t1 > +WHERE a < 3 AND > +EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c) GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 > +WHERE a < 3 AND > +EXISTS(SELECT c FROM t2 GROUP BY c HAVING SUM(a) != c); > +a > +1 > +2 > +1 > +2 > +2 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a < ALL(SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e > +HAVING SUM(t1.a+t2.c) < t3.e/4)); > +a > +1 > +2 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a > ALL(SELECT t2.c FROM t2 > +WHERE EXISTS(SELECT t3.e FROM t3 GROUP BY t3.e > +HAVING SUM(t1.a+t2.c) < t3.e/4)); > +a > +4 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a > ALL(SELECT t2.c FROM t2 > +WHERE EXISTS(SELECT t3.e FROM t3 > +WHERE SUM(t1.a+t2.c) < t3.e/4)); > +ERROR HY000: Invalid use of group function > +SELECT t1.a from t1 GROUP BY t1.a HAVING AVG(SUM(t1.b)) > 20; > +ERROR HY000: Invalid use of group function > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING AVG(t2.c+SUM(t1.b)) > 20); > +a > +2 > +3 > +4 > +SELECT t1.a FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING AVG(SUM(t1.b)) > 20); > +a > +2 > +4 > +SELECT t1.a, SUM(b) AS sum FROM t1 GROUP BY t1.a > +HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c > +HAVING t2.c+sum > 20); > +a sum > +2 60 > +3 20 > +4 40 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a varchar(5), b varchar(10)); > +INSERT INTO t1 VALUES > +('AAA', 5), ('BBB', 4), ('BBB', 1), ('CCC', 2), > +('CCC', 7), ('AAA', 2), ('AAA', 4), ('BBB', 3), ('AAA', 8); > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +a b > +BBB 4 > +CCC 7 > +AAA 8 > +EXPLAIN > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary > +ALTER TABLE t1 ADD INDEX(a); > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +a b > +BBB 4 > +CCC 7 > +AAA 8 > +EXPLAIN > +SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where > +2 DEPENDENT SUBQUERY t1 index NULL a 8 NULL 1 > +DROP TABLE t1; > +create table t1( f1 int,f2 int); > +insert into t1 values (1,1),(2,2); > +select tt.t from (select 'crash1' as t, f2 from t1) as tt left join t1 on tt.t = 'crash2' and tt.f2 = t1.f2 where tt.t = 'crash1'; > +t > +crash1 > +crash1 > +drop table t1; > +create table t1 (c int, key(c)); > +insert into t1 values (1142477582), (1142455969); > +create table t2 (a int, b int); > +insert into t2 values (2, 1), (1, 0); > +delete from t1 where c <= 1140006215 and (select b from t2 where a = 2) = 1; > +drop table t1, t2; > +CREATE TABLE t1 (a INT); > +CREATE VIEW v1 AS SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'where clause' > +CREATE VIEW v2 AS SELECT * FROM t1 WHERE no_such_column = (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'where clause' > +SELECT * FROM t1 WHERE no_such_column = ANY (SELECT 1); > +ERROR 42S22: Unknown column 'no_such_column' in 'IN/ALL/ANY subquery' > +DROP TABLE t1; > +create table t1 (i int, j bigint); > +insert into t1 values (1, 2), (2, 2), (3, 2); > +select * from (select min(i) from t1 where j=(select * from (select min(j) from t1) t2)) t3; > +min(i) > +1 > +drop table t1; > +CREATE TABLE t1 (i BIGINT UNSIGNED); > +INSERT INTO t1 VALUES (10000000000000000000); > +INSERT INTO t1 VALUES (1); > +CREATE TABLE t2 (i BIGINT UNSIGNED); > +INSERT INTO t2 VALUES (10000000000000000000); > +INSERT INTO t2 VALUES (1); > +/* simple test */ > +SELECT t1.i FROM t1 JOIN t2 ON t1.i = t2.i; > +i > +10000000000000000000 > +1 > +/* subquery test */ > +SELECT t1.i FROM t1 WHERE t1.i = (SELECT MAX(i) FROM t2); > +i > +10000000000000000000 > +/* subquery test with cast*/ > +SELECT t1.i FROM t1 WHERE t1.i = CAST((SELECT MAX(i) FROM t2) AS UNSIGNED); > +i > +10000000000000000000 > +DROP TABLE t1; > +DROP TABLE t2; > +CREATE TABLE t1 ( > +id bigint(20) unsigned NOT NULL auto_increment, > +name varchar(255) NOT NULL, > +PRIMARY KEY (id) > +); > +INSERT INTO t1 VALUES > +(1, 'Balazs'), (2, 'Joe'), (3, 'Frank'); > +CREATE TABLE t2 ( > +id bigint(20) unsigned NOT NULL auto_increment, > +mid bigint(20) unsigned NOT NULL, > +date date NOT NULL, > +PRIMARY KEY (id) > +); > +INSERT INTO t2 VALUES > +(1, 1, '2006-03-30'), (2, 2, '2006-04-06'), (3, 3, '2006-04-13'), > +(4, 2, '2006-04-20'), (5, 1, '2006-05-01'); > +SELECT *, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 0, 1) AS date_last, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 3, 1) AS date_next_to_last > +FROM t1; > +id name date_last date_next_to_last > +1 Balazs 2006-05-01 NULL > +2 Joe 2006-04-20 NULL > +3 Frank 2006-04-13 NULL > +SELECT *, > +(SELECT COUNT(*) FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 1, 1) AS date_count > +FROM t1; > +id name date_count > +1 Balazs NULL > +2 Joe NULL > +3 Frank NULL > +SELECT *, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 0, 1) AS date_last, > +(SELECT date FROM t2 WHERE mid = t1.id > +ORDER BY date DESC LIMIT 1, 1) AS date_next_to_last > +FROM t1; > +id name date_last date_next_to_last > +1 Balazs 2006-05-01 2006-03-30 > +2 Joe 2006-04-20 2006-04-06 > +3 Frank 2006-04-13 NULL > +DROP TABLE t1,t2; > +CREATE TABLE t1 ( > +i1 int(11) NOT NULL default '0', > +i2 int(11) NOT NULL default '0', > +t datetime NOT NULL default '0000-00-00 00:00:00', > +PRIMARY KEY (i1,i2,t) > +); > +INSERT INTO t1 VALUES > +(24,1,'2005-03-03 16:31:31'),(24,1,'2005-05-27 12:40:07'), > +(24,1,'2005-05-27 12:40:08'),(24,1,'2005-05-27 12:40:10'), > +(24,1,'2005-05-27 12:40:25'),(24,1,'2005-05-27 12:40:30'), > +(24,2,'2005-03-03 13:43:05'),(24,2,'2005-03-03 16:23:31'), > +(24,2,'2005-03-03 16:31:30'),(24,2,'2005-05-27 12:37:02'), > +(24,2,'2005-05-27 12:40:06'); > +CREATE TABLE t2 ( > +i1 int(11) NOT NULL default '0', > +i2 int(11) NOT NULL default '0', > +t datetime default NULL, > +PRIMARY KEY (i1) > +); > +INSERT INTO t2 VALUES (24,1,'2006-06-20 12:29:40'); > +EXPLAIN > +SELECT * FROM t1,t2 > +WHERE t1.t = (SELECT t1.t FROM t1 > +WHERE t1.t < t2.t AND t1.i2=1 AND t2.i1=t1.i1 > +ORDER BY t1.t DESC LIMIT 1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 system NULL NULL NULL NULL 1 > +1 PRIMARY t1 index NULL PRIMARY 16 NULL 11 Using where; Using index > +2 DEPENDENT SUBQUERY t1 range PRIMARY PRIMARY 16 NULL 5 Using where; Using index > +SELECT * FROM t1,t2 > +WHERE t1.t = (SELECT t1.t FROM t1 > +WHERE t1.t < t2.t AND t1.i2=1 AND t2.i1=t1.i1 > +ORDER BY t1.t DESC LIMIT 1); > +i1 i2 t i1 i2 t > +24 1 2005-05-27 12:40:30 24 1 2006-06-20 12:29:40 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (a VARCHAR(250), b INT auto_increment, PRIMARY KEY (b)); > +insert into t1 (a) values (FLOOR(rand() * 100)); > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +insert into t1 (a) select FLOOR(rand() * 100) from t1; > +SELECT a, > +(SELECT REPEAT(' ',250) FROM t1 i1 > +WHERE i1.b=t1.a ORDER BY RAND() LIMIT 1) AS a > +FROM t1 ORDER BY a LIMIT 5; > +a a > +0 NULL > +0 NULL > +0 NULL > +0 NULL > +0 NULL > +DROP TABLE t1; > +CREATE TABLE t1 (a INT, b INT); > +CREATE TABLE t2 (a INT); > +INSERT INTO t2 values (1); > +INSERT INTO t1 VALUES (1,1),(1,2),(2,3),(3,4); > +SELECT (SELECT COUNT(DISTINCT t1.b) from t2) FROM t1 GROUP BY t1.a; > +(SELECT COUNT(DISTINCT t1.b) from t2) > +2 > +1 > +1 > +SELECT (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) > +FROM t1 GROUP BY t1.a; > +(SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) > +2 > +1 > +1 > +SELECT COUNT(DISTINCT t1.b), (SELECT COUNT(DISTINCT t1.b)) FROM t1 GROUP BY t1.a; > +COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b)) > +2 2 > +1 1 > +1 1 > +SELECT COUNT(DISTINCT t1.b), > +(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) > +FROM t1 GROUP BY t1.a; > +COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) > +2 2 > +1 1 > +1 1 > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a; > +( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +2 > +1 > +1 > +SELECT ( > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a LIMIT 1) > +FROM t1 t2 > +GROUP BY t2.a; > +( > +SELECT ( > +SELECT ( > +SELECT COUNT(DISTINCT t1.b) > +) > +) > +FROM t1 GROUP BY t1.a LIMIT 1) > +2 > +2 > +2 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int, PRIMARY KEY (b)); > +CREATE TABLE t2 (x int auto_increment, y int, z int, > +PRIMARY KEY (x), FOREIGN KEY (y) REFERENCES t1 (b)); > +create table t3 (a int); > +insert into t3 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +insert into t1 select RAND()*1000, A.a + 10*(B.a+10*(C.a+10*D.a)) > +from t3 A, t3 B, t3 C, t3 D where D.a<3; > +insert into t2(y,z) select t1.b, RAND()*1000 from t1, t3; > +SET SESSION sort_buffer_size = 32 * 1024; > +SELECT SQL_NO_CACHE COUNT(*) > +FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c > +FROM t1) t; > +COUNT(*) > +3000 > +SET SESSION sort_buffer_size = 8 * 1024 * 1024; > +SELECT SQL_NO_CACHE COUNT(*) > +FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c > +FROM t1) t; > +COUNT(*) > +3000 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (id char(4) PRIMARY KEY, c int); > +CREATE TABLE t2 (c int); > +INSERT INTO t1 VALUES ('aa', 1); > +INSERT INTO t2 VALUES (1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT c FROM t2 WHERE c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +INSERT INTO t1 VALUES ('bb', 2), ('cc', 3), ('dd',1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT c FROM t2 WHERE c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +bb 2 > +cc 3 > +dd 1 > +INSERT INTO t2 VALUES (2); > +CREATE TABLE t3 (c int); > +INSERT INTO t3 VALUES (1); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT t2.c FROM t2 JOIN t3 ON t2.c=t3.c WHERE t2.c=1 > +UNION > +SELECT c from t2 WHERE c=t1.c); > +id c > +aa 1 > +bb 2 > +cc 3 > +dd 1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1(f1 int); > +CREATE TABLE t2(f2 int, f21 int, f3 timestamp); > +INSERT INTO t1 VALUES (1),(1),(2),(2); > +INSERT INTO t2 VALUES (1,1,"2004-02-29 11:11:11"), (2,2,"2004-02-29 11:11:11"); > +SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1; > +sq > +2 > +4 > +SELECT (SELECT SUM(1) FROM t2 ttt GROUP BY t2.f3 LIMIT 1) AS tt FROM t2; > +tt > +2 > +2 > +PREPARE stmt1 FROM 'SELECT ((SELECT f2 FROM t2 WHERE f21=f1 LIMIT 1) * COUNT(f1)) AS sq FROM t1 GROUP BY f1'; > +EXECUTE stmt1; > +sq > +2 > +4 > +EXECUTE stmt1; > +sq > +2 > +4 > +DEALLOCATE PREPARE stmt1; > +SELECT f2, AVG(f21), > +(SELECT t.f3 FROM t2 AS t WHERE t2.f2=t.f2 AND t.f3=MAX(t2.f3)) AS test > +FROM t2 GROUP BY f2; > +f2 AVG(f21) test > +1 1.0000 2004-02-29 11:11:11 > +2 2.0000 2004-02-29 11:11:11 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b INT, c CHAR(10) NOT NULL); > +INSERT INTO t1 VALUES > +(1,1,'a'), (1,2,'b'), (1,3,'c'), (1,4,'d'), (1,5,'e'), > +(2,1,'f'), (2,2,'g'), (2,3,'h'), (3,4,'i'), (3,3,'j'), > +(3,2,'k'), (3,1,'l'), (1,9,'m'); > +SELECT a, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b)) AS test > +FROM t1 GROUP BY a; > +a MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +DROP TABLE t1; > +DROP TABLE IF EXISTS t1; > +DROP TABLE IF EXISTS t2; > +DROP TABLE IF EXISTS t1xt2; > +CREATE TABLE t1 ( > +id_1 int(5) NOT NULL, > +t varchar(4) DEFAULT NULL > +); > +CREATE TABLE t2 ( > +id_2 int(5) NOT NULL, > +t varchar(4) DEFAULT NULL > +); > +CREATE TABLE t1xt2 ( > +id_1 int(5) NOT NULL, > +id_2 int(5) NOT NULL > +); > +INSERT INTO t1 VALUES (1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'); > +INSERT INTO t2 VALUES (2, 'bb'), (3, 'cc'), (4, 'dd'), (12, 'aa'); > +INSERT INTO t1xt2 VALUES (2, 2), (3, 3), (4, 4); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 where t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +2 > +3 > +4 > +insert INTO t1xt2 VALUES (1, 12); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +2 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +2 > +3 > +4 > +insert INTO t1xt2 VALUES (2, 12); > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +1 > +2 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)); > +id_1 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN ((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1))); > +id_1 > +3 > +4 > +SELECT DISTINCT t1.id_1 FROM t1 WHERE > +(12 NOT IN (((SELECT t1xt2.id_2 FROM t1xt2 WHERE t1.id_1 = t1xt2.id_1)))); > +id_1 > +3 > +4 > +DROP TABLE t1; > +DROP TABLE t2; > +DROP TABLE t1xt2; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (3), (1), (2); > +SELECT 'this is ' 'a test.' AS col1, a AS col2 FROM t1; > +col1 col2 > +this is a test. 3 > +this is a test. 1 > +this is a test. 2 > +SELECT * FROM (SELECT 'this is ' 'a test.' AS col1, a AS t2 FROM t1) t; > +col1 t2 > +this is a test. 3 > +this is a test. 1 > +this is a test. 2 > +DROP table t1; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (m int, n int); > +INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4); > +INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44); > +SELECT COUNT(*), a, > +(SELECT m FROM t2 WHERE m = count(*) LIMIT 1) > +FROM t1 GROUP BY a; > +COUNT(*) a (SELECT m FROM t2 WHERE m = count(*) LIMIT 1) > +2 2 2 > +3 3 3 > +1 4 1 > +SELECT COUNT(*), a, > +(SELECT MIN(m) FROM t2 WHERE m = count(*)) > +FROM t1 GROUP BY a; > +COUNT(*) a (SELECT MIN(m) FROM t2 WHERE m = count(*)) > +2 2 2 > +3 3 3 > +1 4 1 > +SELECT COUNT(*), a > +FROM t1 GROUP BY a > +HAVING (SELECT MIN(m) FROM t2 WHERE m = count(*)) > 1; > +COUNT(*) a > +2 2 > +3 3 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int); > +CREATE TABLE t2 (m int, n int); > +INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4); > +INSERT INTO t2 VALUES (1,11), (2,22), (3,32), (4,44), (4,44); > +SELECT COUNT(*) c, a, > +(SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a) > +FROM t1 GROUP BY a; > +c a (SELECT GROUP_CONCAT(COUNT(a)) FROM t2 WHERE m = a) > +2 2 2 > +3 3 3 > +1 4 1,1 > +SELECT COUNT(*) c, a, > +(SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a) > +FROM t1 GROUP BY a; > +c a (SELECT GROUP_CONCAT(COUNT(a)+1) FROM t2 WHERE m = a) > +2 2 3 > +3 3 4 > +1 4 2,2 > +DROP table t1,t2; > +CREATE TABLE t1 (a int, b INT, d INT, c CHAR(10) NOT NULL, PRIMARY KEY (a, b)); > +INSERT INTO t1 VALUES (1,1,0,'a'), (1,2,0,'b'), (1,3,0,'c'), (1,4,0,'d'), > +(1,5,0,'e'), (2,1,0,'f'), (2,2,0,'g'), (2,3,0,'h'), (3,4,0,'i'), (3,3,0,'j'), > +(3,2,0,'k'), (3,1,0,'l'), (1,9,0,'m'), (1,0,10,'n'), (2,0,5,'o'), (3,0,7,'p'); > +SELECT a, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=MAX(t1.b + 0)) as test > +FROM t1 GROUP BY a; > +a MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +SELECT a x, MAX(b), > +(SELECT t.c FROM t1 AS t WHERE x=t.a AND t.b=MAX(t1.b + 0)) as test > +FROM t1 GROUP BY a; > +x MAX(b) test > +1 9 m > +2 3 h > +3 4 i > +SELECT a, AVG(b), > +(SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.b=AVG(t1.b)) AS test > +FROM t1 WHERE t1.d=0 GROUP BY a; > +a AVG(b) test > +1 4.0000 d > +2 2.0000 g > +3 2.5000 NULL > +SELECT tt.a, > +(SELECT (SELECT c FROM t1 as t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test > +FROM t1 as tt; > +a test > +1 n > +1 n > +1 n > +1 n > +1 n > +1 n > +1 n > +2 o > +2 o > +2 o > +2 o > +3 p > +3 p > +3 p > +3 p > +3 p > +SELECT tt.a, > +(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) > +FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test > +FROM t1 as tt GROUP BY tt.a; > +a test > +1 n > +2 o > +3 p > +SELECT tt.a, MAX( > +(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a) > +LIMIT 1) > +FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1)) as test > +FROM t1 as tt GROUP BY tt.a; > +a test > +1 n > +2 o > +3 p > +DROP TABLE t1; > +CREATE TABLE t1 (a int, b int); > +INSERT INTO t1 VALUES (2,22),(1,11),(2,22); > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +a > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +a > +1 > +2 > +SET @@sql_mode='ansi'; > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +ERROR HY000: Invalid use of group function > +SET @@sql_mode=default; > +DROP TABLE t1; > +CREATE TABLE t1 (a INT); > +INSERT INTO t1 values (1),(1),(1),(1); > +CREATE TABLE t2 (x INT); > +INSERT INTO t1 values (1000),(1001),(1002); > +SELECT SUM( (SELECT COUNT(a) FROM t2) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT SUM( (SELECT SUM(COUNT(a)) FROM t2) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT COUNT(1) FROM DUAL; > +COUNT(1) > +1 > +SELECT SUM( (SELECT AVG( (SELECT t1.a FROM t2) ) FROM DUAL) ) FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT > +SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING t1.a < 12) ) FROM t2) ) > +FROM t1; > +ERROR HY000: Invalid use of group function > +SELECT t1.a as XXA, > +SUM( (SELECT AVG( (SELECT COUNT(*) FROM t1 t HAVING XXA < 12) ) FROM t2) ) > +FROM t1; > +ERROR HY000: Invalid use of group function > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int, b int, KEY (a)); > +INSERT INTO t1 VALUES (1,1),(2,1); > +EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT COUNT(*) FROM t1 GROUP BY b); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ref a a 5 const 0 Using where; Using index > +2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort > +DROP TABLE t1; > +CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id)); > +INSERT INTO t1 VALUES > +(3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY'); > +CREATE TABLE t2 (id int NOT NULL, INDEX idx(id)); > +INSERT INTO t2 VALUES (7), (5), (1), (3); > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id); > +id st > +3 FL > +1 GA > +7 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id) > +GROUP BY id; > +id st > +1 GA > +3 FL > +7 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id); > +id st > +2 GA > +4 FL > +SELECT id, st FROM t1 > +WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id) > +GROUP BY id; > +id st > +2 GA > +4 FL > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a int); > +INSERT INTO t1 VALUES (1), (2); > +EXPLAIN EXTENDED > +SELECT * FROM (SELECT count(*) FROM t1 GROUP BY a) as res; > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 > +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort > +Warnings: > +Note 1003 select `res`.`count(*)` AS `count(*)` from (select count(0) AS `count(*)` from `test`.`t1` group by `test`.`t1`.`a`) `res` > +DROP TABLE t1; > +CREATE TABLE t1 ( > +a varchar(255) default NULL, > +b timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP, > +INDEX idx(a,b) > +); > +CREATE TABLE t2 ( > +a varchar(255) default NULL > +); > +INSERT INTO t1 VALUES ('abcdefghijk','2007-05-07 06:00:24'); > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO t1 SELECT * FROM t1; > +INSERT INTO `t1` VALUES ('asdf','2007-02-08 01:11:26'); > +INSERT INTO `t2` VALUES ('abcdefghijk'); > +INSERT INTO `t2` VALUES ('asdf'); > +SET session sort_buffer_size=8192; > +SELECT (SELECT 1 FROM t1 WHERE t1.a=t2.a ORDER BY t1.b LIMIT 1) AS d1 FROM t2; > +d1 > +1 > +1 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INTEGER, b INTEGER); > +CREATE TABLE t2 (x INTEGER); > +INSERT INTO t1 VALUES (1,11), (2,22), (2,22); > +INSERT INTO t2 VALUES (1), (2); > +SELECT a, COUNT(b), (SELECT COUNT(b) FROM t2) FROM t1 GROUP BY a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT a, COUNT(b), (SELECT COUNT(b)+0 FROM t2) FROM t1 GROUP BY a; > +ERROR 21000: Subquery returns more than 1 row > +SELECT (SELECT SUM(t1.a)/AVG(t2.x) FROM t2) FROM t1; > +(SELECT SUM(t1.a)/AVG(t2.x) FROM t2) > +3.3333 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INT, b INT); > +INSERT INTO t1 VALUES (1, 2), (1,3), (1,4), (2,1), (2,2); > +SELECT a1.a, COUNT(*) FROM t1 a1 WHERE a1.a = 1 > +AND EXISTS( SELECT a2.a FROM t1 a2 WHERE a2.a = a1.a) > +GROUP BY a1.a; > +a COUNT(*) > +1 3 > +DROP TABLE t1; > +CREATE TABLE t1 (a INT); > +CREATE TABLE t2 (a INT); > +INSERT INTO t1 VALUES (1),(2); > +INSERT INTO t2 VALUES (1),(2); > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=0) FROM t1; > +(SELECT SUM(t1.a) FROM t2 WHERE a=0) > +NULL > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a!=0) FROM t1; > +ERROR 21000: Subquery returns more than 1 row > +SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=1) FROM t1; > +(SELECT SUM(t1.a) FROM t2 WHERE a=1) > +3 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a1 INT, a2 INT); > +CREATE TABLE t2 (b1 INT, b2 INT); > +INSERT INTO t1 VALUES (100, 200); > +INSERT INTO t1 VALUES (101, 201); > +INSERT INTO t2 VALUES (101, 201); > +INSERT INTO t2 VALUES (103, 203); > +SELECT ((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL FROM t1; > +((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL > +0 > +0 > +DROP TABLE t1, t2; > +CREATE TABLE t1 (s1 BINARY(5), s2 VARBINARY(5)); > +INSERT INTO t1 VALUES (0x41,0x41), (0x42,0x42), (0x43,0x43); > +SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1); > +s1 s2 > +SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1); > +s1 s2 > +CREATE INDEX I1 ON t1 (s1); > +CREATE INDEX I2 ON t1 (s2); > +SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1); > +s1 s2 > +SELECT s1, s2 FROM t1 WHERE (s2, 10) IN (SELECT s1, 10 FROM t1); > +s1 s2 > +TRUNCATE t1; > +INSERT INTO t1 VALUES (0x41,0x41); > +SELECT * FROM t1 WHERE s1 = (SELECT s2 FROM t1); > +s1 s2 > +DROP TABLE t1; > +CREATE TABLE t1 (a1 VARBINARY(2) NOT NULL DEFAULT '0', PRIMARY KEY (a1)); > +CREATE TABLE t2 (a2 BINARY(2) default '0', INDEX (a2)); > +CREATE TABLE t3 (a3 BINARY(2) default '0'); > +INSERT INTO t1 VALUES (1),(2),(3),(4); > +INSERT INTO t2 VALUES (1),(2),(3); > +INSERT INTO t3 VALUES (1),(2),(3); > +SELECT LEFT(t2.a2, 1) FROM t2,t3 WHERE t3.a3=t2.a2; > +LEFT(t2.a2, 1) > +1 > +2 > +3 > +SELECT t1.a1, t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2) FROM t1; > +a1 t1.a1 in (SELECT t2.a2 FROM t2,t3 WHERE t3.a3=t2.a2) > +1 0 > +2 0 > +3 0 > +4 0 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (a1 BINARY(3) PRIMARY KEY, b1 VARBINARY(3)); > +CREATE TABLE t2 (a2 VARBINARY(3) PRIMARY KEY); > +CREATE TABLE t3 (a3 VARBINARY(3) PRIMARY KEY); > +INSERT INTO t1 VALUES (1,10), (2,20), (3,30), (4,40); > +INSERT INTO t2 VALUES (2), (3), (4), (5); > +INSERT INTO t3 VALUES (10), (20), (30); > +SELECT LEFT(t1.a1,1) FROM t1,t3 WHERE t1.b1=t3.a3; > +LEFT(t1.a1,1) > +1 > +2 > +3 > +SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3); > +a2 > +DROP TABLE t1, t2, t3; > +CREATE TABLE t1 (a CHAR(1), b VARCHAR(10)); > +INSERT INTO t1 VALUES ('a', 'aa'); > +INSERT INTO t1 VALUES ('a', 'aaa'); > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +a b > +CREATE INDEX I1 ON t1 (a); > +CREATE INDEX I2 ON t1 (b); > +EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); > +a b > +CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10)); > +INSERT INTO t2 SELECT * FROM t1; > +CREATE INDEX I1 ON t2 (a); > +CREATE INDEX I2 ON t2 (b); > +EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t2 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t2 ref I1 I1 4 test.t2.b 2 Using where; Using index; FirstMatch(t2) > +SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); > +a b > +EXPLAIN > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where > +1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) > +SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); > +a b > +DROP TABLE t1,t2; > +CREATE TABLE t1(a INT, b INT); > +INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4); > +EXPLAIN > +SELECT a AS out_a, MIN(b) FROM t1 > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a) > +GROUP BY a; > +ERROR 42S22: Unknown column 'out_a' in 'where clause' > +SELECT a AS out_a, MIN(b) FROM t1 > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = out_a) > +GROUP BY a; > +ERROR 42S22: Unknown column 'out_a' in 'where clause' > +EXPLAIN > +SELECT a AS out_a, MIN(b) FROM t1 t1_outer > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a) > +GROUP BY a; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1_outer ALL NULL NULL NULL NULL 4 Using where; Using temporary; Using filesort > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 4 Using where > +SELECT a AS out_a, MIN(b) FROM t1 t1_outer > +WHERE b > (SELECT MIN(b) FROM t1 WHERE a = t1_outer.a) > +GROUP BY a; > +out_a MIN(b) > +1 2 > +2 4 > +DROP TABLE t1; > +create table t0(a int); > +insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); > +create table t1(f11 int, f12 int); > +create table t2(f21 int unsigned not null, f22 int, f23 varchar(10)); > +insert into t1 values(1,1),(2,2), (3, 3); > +insert into t2 > +select -1 , (@a:=(A.a + 10 * (B.a + 10 * (C.a+10*D.a))))/5000 + 1, @a > +from t0 A, t0 B, t0 C, t0 D; > +set session sort_buffer_size= 33*1024; > +select count(*) from t1 where f12 = > +(select f22 from t2 where f22 = f12 order by f21 desc, f22, f23 limit 1); > +count(*) > +3 > +drop table t0,t1,t2; > +CREATE TABLE t4 ( > +f7 varchar(32) collate utf8_bin NOT NULL default '', > +f10 varchar(32) collate utf8_bin default NULL, > +PRIMARY KEY (f7) > +); > +INSERT INTO t4 VALUES(1,1), (2,null); > +CREATE TABLE t2 ( > +f4 varchar(32) collate utf8_bin NOT NULL default '', > +f2 varchar(50) collate utf8_bin default NULL, > +f3 varchar(10) collate utf8_bin default NULL, > +PRIMARY KEY (f4), > +UNIQUE KEY uk1 (f2) > +); > +INSERT INTO t2 VALUES(1,1,null), (2,2,null); > +CREATE TABLE t1 ( > +f8 varchar(32) collate utf8_bin NOT NULL default '', > +f1 varchar(10) collate utf8_bin default NULL, > +f9 varchar(32) collate utf8_bin default NULL, > +PRIMARY KEY (f8) > +); > +INSERT INTO t1 VALUES (1,'P',1), (2,'P',1), (3,'R',2); > +CREATE TABLE t3 ( > +f6 varchar(32) collate utf8_bin NOT NULL default '', > +f5 varchar(50) collate utf8_bin default NULL, > +PRIMARY KEY (f6) > +); > +INSERT INTO t3 VALUES (1,null), (2,null); > +SELECT > +IF(t1.f1 = 'R', a1.f2, t2.f2) AS a4, > +IF(t1.f1 = 'R', a1.f3, t2.f3) AS f3, > +SUM( > +IF( > +(SELECT VPC.f2 > +FROM t2 VPC, t4 a2, t2 a3 > +WHERE > +VPC.f4 = a2.f10 AND a3.f2 = a4 > +LIMIT 1) IS NULL, > +0, > +t3.f5 > +) > +) AS a6 > +FROM > +t2, t3, t1 JOIN t2 a1 ON t1.f9 = a1.f4 > +GROUP BY a4; > +a4 f3 a6 > +1 NULL NULL > +2 NULL NULL > +DROP TABLE t1, t2, t3, t4; > +create table t1 (a float(5,4) zerofill); > +create table t2 (a float(5,4),b float(2,0)); > +select t1.a from t1 where > +t1.a= (select b from t2 limit 1) and not > +t1.a= (select a from t2 limit 1) ; > +a > +drop table t1, t2; > +CREATE TABLE t1 (a INT); > +INSERT INTO t1 VALUES (1),(2); > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary > +Warnings: > +Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1))))) > +DROP TABLE t1; > +# > +# Bug#45061: Incorrectly market field caused wrong result. > +# > +CREATE TABLE `C` ( > +`int_nokey` int(11) NOT NULL, > +`int_key` int(11) NOT NULL, > +KEY `int_key` (`int_key`) > +); > +INSERT INTO `C` VALUES (9,9), (0,0), (8,6), (3,6), (7,6), (0,4), > +(1,7), (9,4), (0,8), (9,4), (0,7), (5,5), (0,0), (8,5), (8,7), > +(5,2), (1,8), (7,0), (0,9), (9,5); > +SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); > +int_nokey int_key > +9 9 > +0 0 > +5 5 > +0 0 > +EXPLAIN EXTENDED SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); > +id select_type table type possible_keys key key_len ref rows filtered Extra > +1 PRIMARY C ALL NULL NULL NULL NULL 20 100.00 Using where > +DROP TABLE C; > +# End of test for bug#45061. > +# > +# Bug #46749: Segfault in add_key_fields() with outer subquery level > +# field references > +# > +CREATE TABLE t1 ( > +a int, > +b int, > +UNIQUE (a), KEY (b) > +); > +INSERT INTO t1 VALUES (1,1), (2,1); > +CREATE TABLE st1 like t1; > +INSERT INTO st1 VALUES (1,1), (2,1); > +CREATE TABLE st2 like t1; > +INSERT INTO st2 VALUES (1,1), (2,1); > +EXPLAIN > +SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +FROM t1 > +WHERE a = 230; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables > +SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +FROM t1 > +WHERE a = 230; > +MAX(b) (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b) > +NULL 0 > +DROP TABLE t1, st1, st2; > +# > +# Bug #48709: Assertion failed in sql_select.cc:11782: > +# int join_read_key(JOIN_TAB*) > +# > +CREATE TABLE t1 (pk int PRIMARY KEY, int_key int); > +INSERT INTO t1 VALUES (10,1), (14,1); > +CREATE TABLE t2 (pk int PRIMARY KEY, int_key int); > +INSERT INTO t2 VALUES (3,3), (5,NULL), (7,3); > +# should have eq_ref for t1 > +EXPLAIN > +SELECT * FROM t2 outr > +WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2) > +ORDER BY outr.pk; > +id select_type table type possible_keys key key_len ref rows Extra > +x x outr ALL x x x x x x > +x x t1 eq_ref x x x x x x > +x x t2 index x x x x x x > +# should not crash on debug binaries > +SELECT * FROM t2 outr > +WHERE outr.int_key NOT IN (SELECT t1.pk FROM t1, t2) > +ORDER BY outr.pk; > +pk int_key > +3 3 > +7 3 > +DROP TABLE t1,t2; > +End of 5.0 tests. > +create table t_out (subcase char(3), > +a1 char(2), b1 char(2), c1 char(2)); > +create table t_in (a2 char(2), b2 char(2), c2 char(2)); > +insert into t_out values ('A.1','2a', NULL, '2a'); > +insert into t_out values ('A.3', '2a', NULL, '2a'); > +insert into t_out values ('A.4', '2a', NULL, 'xx'); > +insert into t_out values ('B.1', '2a', '2a', '2a'); > +insert into t_out values ('B.2', '2a', '2a', '2a'); > +insert into t_out values ('B.3', '3a', 'xx', '3a'); > +insert into t_out values ('B.4', 'xx', '3a', '3a'); > +insert into t_in values ('1a', '1a', '1a'); > +insert into t_in values ('2a', '2a', '2a'); > +insert into t_in values (NULL, '2a', '2a'); > +insert into t_in values ('3a', NULL, '3a'); > + > +Test general IN semantics (not top-level) > + > +case A.1 > +select subcase, > +(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in, > +(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in > +from t_out where subcase = 'A.1'; > +subcase pred_in pred_not_in > +A.1 0 1 > +case A.2 - impossible > +case A.3 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'A.3'; > +subcase pred_in pred_not_in > +A.3 NULL NULL > +case A.4 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'A.4'; > +subcase pred_in pred_not_in > +A.4 0 1 > +case B.1 > +select subcase, > +(a1, b1, c1) IN (select * from t_in where a2 = 'no_match') pred_in, > +(a1, b1, c1) NOT IN (select * from t_in where a2 = 'no_match') pred_not_in > +from t_out where subcase = 'B.1'; > +subcase pred_in pred_not_in > +B.1 0 1 > +case B.2 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.2'; > +subcase pred_in pred_not_in > +B.2 1 0 > +case B.3 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.3'; > +subcase pred_in pred_not_in > +B.3 NULL NULL > +case B.4 > +select subcase, > +(a1, b1, c1) IN (select * from t_in) pred_in, > +(a1, b1, c1) NOT IN (select * from t_in) pred_not_in > +from t_out where subcase = 'B.4'; > +subcase pred_in pred_not_in > +B.4 0 1 > + > +Test IN as top-level predicate, and > +as non-top level for cases A.3, B.3 (the only cases with NULL result). > + > +case A.1 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.1' and > +(a1, b1, c1) IN (select * from t_in where a1 = 'no_match'); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.1' and > +(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match'); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.1' and > +NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match')); > +not_pred_in > +T > +case A.3 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.3' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.3' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.3' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out > +where subcase = 'A.3' and > +((a1, b1, c1) IN (select * from t_in)) is NULL and > +((a1, b1, c1) NOT IN (select * from t_in)) is NULL; > +pred_in > +N > +case A.4 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'A.4' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'A.4' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'A.4' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +T > +case B.1 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.1' and > +(a1, b1, c1) IN (select * from t_in where a1 = 'no_match'); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.1' and > +(a1, b1, c1) NOT IN (select * from t_in where a1 = 'no_match'); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.1' and > +NOT((a1, b1, c1) IN (select * from t_in where a1 = 'no_match')); > +not_pred_in > +T > +case B.2 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.2' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.2' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.2' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +case B.3 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.3' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.3' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.3' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +F > +select case when count(*) > 0 then 'N' else 'wrong result' end as pred_in from t_out > +where subcase = 'B.3' and > +((a1, b1, c1) IN (select * from t_in)) is NULL and > +((a1, b1, c1) NOT IN (select * from t_in)) is NULL; > +pred_in > +N > +case B.4 > +select case when count(*) > 0 then 'T' else 'F' end as pred_in from t_out > +where subcase = 'B.4' and > +(a1, b1, c1) IN (select * from t_in); > +pred_in > +F > +select case when count(*) > 0 then 'T' else 'F' end as pred_not_in from t_out > +where subcase = 'B.4' and > +(a1, b1, c1) NOT IN (select * from t_in); > +pred_not_in > +T > +select case when count(*) > 0 then 'T' else 'F' end as not_pred_in from t_out > +where subcase = 'B.4' and > +NOT((a1, b1, c1) IN (select * from t_in)); > +not_pred_in > +T > +drop table t_out; > +drop table t_in; > +CREATE TABLE t1 (a INT, b INT); > +INSERT INTO t1 VALUES (2,22),(1,11),(2,22); > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +a > +1 > +2 > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +a > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +a > +1 > +2 > +SET @@sql_mode='ansi'; > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 0 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 WHERE (SELECT COUNT(b) FROM DUAL) > 1 GROUP BY a; > +ERROR HY000: Invalid use of group function > +SELECT a FROM t1 t0 > +WHERE (SELECT COUNT(t0.b) FROM t1 t WHERE t.b>20) GROUP BY a; > +ERROR HY000: Invalid use of group function > +SET @@sql_mode=default; > +DROP TABLE t1; > +CREATE TABLE t1 (s1 CHAR(1)); > +INSERT INTO t1 VALUES ('a'); > +SELECT * FROM t1 WHERE _utf8'a' = ANY (SELECT s1 FROM t1); > +s1 > +a > +DROP TABLE t1; > +CREATE TABLE t1(c INT, KEY(c)); > +CREATE TABLE t2(a INT, b INT); > +INSERT INTO t2 VALUES (1, 10), (2, NULL); > +INSERT INTO t1 VALUES (1), (3); > +SELECT * FROM t2 WHERE b NOT IN (SELECT max(t.c) FROM t1, t1 t WHERE t.c>10); > +a b > +DROP TABLE t1,t2; > +CREATE TABLE t1(pk INT PRIMARY KEY, a INT, INDEX idx(a)); > +INSERT INTO t1 VALUES (1, 10), (3, 30), (2, 20); > +CREATE TABLE t2(pk INT PRIMARY KEY, a INT, b INT, INDEX idxa(a)); > +INSERT INTO t2 VALUES (2, 20, 700), (1, 10, 200), (4, 10, 100); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b); > +pk a > +1 10 > +3 30 > +2 20 > +DROP TABLE t1,t2; > +CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b)); > +INSERT INTO t1 VALUES (1,NULL), (9,NULL); > +CREATE TABLE t2 ( > +a INT, > +b INT, > +c INT, > +d INT, > +PRIMARY KEY (a), > +UNIQUE KEY b (b,c,d), > +KEY b_2 (b), > +KEY c (c), > +KEY d (d) > +); > +INSERT INTO t2 VALUES > +(43, 2, 11 ,30), > +(44, 2, 12 ,30), > +(45, 1, 1 ,10000), > +(46, 1, 2 ,10000), > +(556,1, 32 ,10000); > +CREATE TABLE t3 ( > +a INT, > +b INT, > +c INT, > +PRIMARY KEY (a), > +UNIQUE KEY b (b,c), > +KEY c (c), > +KEY b_2 (b) > +); > +INSERT INTO t3 VALUES (1,1,1), (2,32,1); > +explain > +SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 index PRIMARY PRIMARY 4 NULL 2 Using index > +1 PRIMARY t3 ref b,b_2 b 5 test.t1.a 1 Using index > +2 DEPENDENT SUBQUERY t2 ref b,b_2,c b 10 test.t3.c,test.t1.a 1 Using where; Using index; Using filesort > +SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a; > +a incorrect > +1 1 > +DROP TABLE t1,t2,t3; > +CREATE TABLE t1 (id int); > +CREATE TABLE t2 (id int, c int); > +INSERT INTO t1 (id) VALUES (1); > +INSERT INTO t2 (id) VALUES (1); > +INSERT INTO t1 (id) VALUES (1); > +INSERT INTO t2 (id) VALUES (1); > +CREATE VIEW v1 AS > +SELECT t2.c AS c FROM t1, t2 > +WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +UPDATE v1 SET c=1; > +CREATE VIEW v2 (a,b) AS > +SELECT t2.id, t2.c AS c FROM t1, t2 > +WHERE t1.id=t2.id AND 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +INSERT INTO v2(a,b) VALUES (2,2); > +ERROR HY000: CHECK OPTION failed 'test.v2' > +SELECT * FROM v1; > +c > +1 > +1 > +1 > +1 > +CREATE VIEW v3 AS > +SELECT t2.c AS c FROM t2 > +WHERE 1 IN (SELECT id FROM t1) WITH CHECK OPTION; > +DELETE FROM v3; > +DROP VIEW v1,v2,v3; > +DROP TABLE t1,t2; > +# > +# BUG#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result > +# > +create table t1(id integer primary key, g integer, v integer, s char(1)); > +create table t2(id integer primary key, g integer, v integer, s char(1)); > +insert into t1 values > +(10, 10, 10, 'l'), > +(20, 20, 20, 'l'), > +(40, 40, 40, 'l'), > +(41, 40, null, 'l'), > +(50, 50, 50, 'l'), > +(51, 50, null, 'l'), > +(60, 60, 60, 'l'), > +(61, 60, null, 'l'), > +(70, 70, 70, 'l'), > +(90, 90, null, 'l'); > +insert into t2 values > +(10, 10, 10, 'r'), > +(30, 30, 30, 'r'), > +(50, 50, 50, 'r'), > +(60, 60, 60, 'r'), > +(61, 60, null, 'r'), > +(70, 70, 70, 'r'), > +(71, 70, null, 'r'), > +(80, 80, 80, 'r'), > +(81, 80, null, 'r'), > +(100,100,null, 'r'); > +select * > +from t1 > +where v in(select v > +from t2 > +where t1.g=t2.g) is unknown; > +id g v s > +51 50 NULL l > +61 60 NULL l > +drop table t1, t2; > +# > +# Bug#37822 Correlated subquery with IN and IS UNKNOWN provides wrong result > +# > +create table t1(id integer primary key, g integer, v integer, s char(1)); > +create table t2(id integer primary key, g integer, v integer, s char(1)); > +insert into t1 values > +(10, 10, 10, 'l'), > +(20, 20, 20, 'l'), > +(40, 40, 40, 'l'), > +(41, 40, null, 'l'), > +(50, 50, 50, 'l'), > +(51, 50, null, 'l'), > +(60, 60, 60, 'l'), > +(61, 60, null, 'l'), > +(70, 70, 70, 'l'), > +(90, 90, null, 'l'); > +insert into t2 values > +(10, 10, 10, 'r'), > +(30, 30, 30, 'r'), > +(50, 50, 50, 'r'), > +(60, 60, 60, 'r'), > +(61, 60, null, 'r'), > +(70, 70, 70, 'r'), > +(71, 70, null, 'r'), > +(80, 80, 80, 'r'), > +(81, 80, null, 'r'), > +(100,100,null, 'r'); > +select * > +from t1 > +where v in(select v > +from t2 > +where t1.g=t2.g) is unknown; > +id g v s > +51 50 NULL l > +61 60 NULL l > +drop table t1, t2; > +CREATE TABLE t1 (a ENUM('rainbow')); > +INSERT INTO t1 VALUES (),(),(),(),(); > +SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID())); > +1 > +1 > +DROP TABLE t1; > +CREATE TABLE t1 (a LONGBLOB); > +INSERT INTO t1 SET a = 'aaaa'; > +INSERT INTO t1 SET a = 'aaaa'; > +SELECT 1 FROM t1 GROUP BY > +(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1); > +1 > +1 > +DROP TABLE t1; > +# > +# Bug #49512 : subquery with aggregate function crash > +# subselect_single_select_engine::exec() > +CREATE TABLE t1(a INT); > +INSERT INTO t1 VALUES(); > +# should not crash > +SELECT 1 FROM t1 WHERE a <> SOME > +( > +SELECT MAX((SELECT a FROM t1 LIMIT 1)) AS d > +FROM t1,t1 a > +); > +1 > +DROP TABLE t1; > +# > +# Bug #45989 take 2 : memory leak after explain encounters an > +# error in the query > +# > +CREATE TABLE t1(a LONGTEXT); > +INSERT INTO t1 VALUES (repeat('a',@@global.max_allowed_packet)); > +INSERT INTO t1 VALUES (repeat('b',@@global.max_allowed_packet)); > +EXPLAIN EXTENDED SELECT DISTINCT 1 FROM t1, > +(SELECT DISTINCTROW a AS away FROM t1 GROUP BY a WITH ROLLUP) AS d1 > +WHERE t1.a = d1.a; > +ERROR 42S22: Unknown column 'd1.a' in 'where clause' > +DROP TABLE t1; > +End of 5.1 tests. > +Set up test tables. > +CREATE TABLE t1 ( > +t1_id INT UNSIGNED, > +PRIMARY KEY(t1_id) > +) Engine=MyISAM; > +INSERT INTO t1 (t1_id) VALUES (1), (2), (3), (4), (5); > +CREATE TABLE t2 SELECT * FROM t1; > +CREATE TABLE t3 ( > +t3_id INT UNSIGNED AUTO_INCREMENT, > +t1_id INT UNSIGNED, > +amount DECIMAL(16,2), > +PRIMARY KEY(t3_id), > +KEY(t1_id) > +) Engine=MyISAM; > +INSERT INTO t3 (t1_id, t3_id, amount) > +VALUES (1, 1, 100.00), (2, 2, 200.00), (4, 4, 400.00); > +This is the 'inner query' running by itself. > +Produces correct results. > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +SELECT * FROM (the same inner query) > +Produces correct results. > +SELECT * FROM ( > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +) AS t; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +Now make t2.t1_id part of a key. > +ALTER TABLE t2 ADD PRIMARY KEY(t1_id); > +Same inner query by itself. > +Still correct results. > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +SELECT * FROM (the same inner query), now with indexes on the LEFT JOIN > +SELECT * FROM ( > +SELECT > +t1.t1_id, > +IFNULL((SELECT SUM(amount) FROM t3 WHERE t3.t1_id=t1.t1_id), 0) AS total_amount > +FROM > +t1 > +LEFT JOIN t2 ON t2.t1_id=t1.t1_id > +GROUP BY > +t1.t1_id > +) AS t; > +t1_id total_amount > +1 100.00 > +2 200.00 > +3 0.00 > +4 400.00 > +5 0.00 > +DROP TABLE t3; > +DROP TABLE t2; > +DROP TABLE t1; > +# > +# Bug #52711: Segfault when doing EXPLAIN SELECT with > +# union...order by (select... where...) > +# > +CREATE TABLE t1 (a VARCHAR(10), FULLTEXT KEY a (a)); > +INSERT INTO t1 VALUES (1),(2); > +CREATE TABLE t2 (b INT); > +INSERT INTO t2 VALUES (1),(2); > +# Should not crash > +EXPLAIN > +SELECT * FROM t2 UNION SELECT * FROM t2 > +ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE)); > +# Should not crash > +SELECT * FROM t2 UNION SELECT * FROM t2 > +ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE)); > +DROP TABLE t1,t2; > +# LP BUG#675248 - select->prep_where references on freed memory > +CREATE TABLE t1 (a int, b int); > +insert into t1 values (1,1),(0,0); > +CREATE TABLE t2 (c int); > +insert into t2 values (1),(2); > +prepare stmt1 from "select sum(a),(select sum(c) from t2 where table1.b) as sub > +from t1 as table1 group by sub"; > +execute stmt1; > +sum(a) sub > +0 NULL > +1 3 > +deallocate prepare stmt1; > +prepare stmt1 from "select sum(a),(select sum(c) from t2 having table1.b) as sub > +from t1 as table1"; > +execute stmt1; > +sum(a) sub > +1 3 > +deallocate prepare stmt1; > +drop table t1,t2; > +# > +# Bug LP#693935/#58727: Assertion failure with > +# a single row subquery returning more than one row > +# > +create table t1 (a char(1) charset utf8); > +insert into t1 values ('a'), ('b'); > +create table t2 (a binary(1)); > +insert into t2 values ('x'), ('y'); > +select * from t2 where a=(select a from t1) and a='x'; > +ERROR 21000: Subquery returns more than 1 row > +drop table t1,t2; > +End of 5.1 tests > +# > +# No BUG#, a case brought from 5.2's innodb_mysql_lock.test > +# > +create table t1 (i int not null primary key); > +insert into t1 values (1),(2),(3),(4),(5); > +create table t2 (j int not null primary key); > +insert into t2 values (1),(2),(3),(4),(5); > +create table t3 (k int not null primary key); > +insert into t3 values (1),(2),(3); > +create view v2 as select t2.j as j from t2 where t2.j in (select t1.i from t1); > +select * from t3 where k in (select j from v2); > +k > +1 > +2 > +3 > +drop table t1,t2,t3; > +drop view v2; > +# > +# Bug#52068: Optimizer generates invalid semijoin materialization plan > +# > +drop table if exists ot1, ot2, it1, it2; > +CREATE TABLE ot1(a INTEGER); > +INSERT INTO ot1 VALUES(5), (8); > +CREATE TABLE it2(a INTEGER); > +INSERT INTO it2 VALUES(9), (5), (1), (8); > +CREATE TABLE it3(a INTEGER); > +INSERT INTO it3 VALUES(7), (1), (0), (5), (1), (4); > +CREATE TABLE ot4(a INTEGER); > +INSERT INTO ot4 VALUES(1), (3), (5), (7), (9), (7), (3), (1); > +SELECT * FROM ot1,ot4 > +WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a > +FROM it2,it3); > +a a > +5 1 > +8 1 > +5 5 > +8 5 > +5 7 > +8 7 > +5 7 > +8 7 > +5 1 > +8 1 > +explain SELECT * FROM ot1,ot4 > +WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a > +FROM it2,it3); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY ot1 ALL NULL NULL NULL NULL 2 Start temporary > +1 PRIMARY it2 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) > +1 PRIMARY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) > +1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; End temporary; Using join buffer (flat, BNL join) > +DROP TABLE IF EXISTS ot1, ot4, it2, it3; > +# > +# Bug#729039: NULL keys used to evaluate subquery > +# > +CREATE TABLE t1 (a int) ; > +INSERT INTO t1 VALUES (NULL), (1), (NULL), (2); > +CREATE TABLE t2 (a int, INDEX idx(a)) ; > +INSERT INTO t2 VALUES (NULL), (1), (NULL); > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 USE INDEX () WHERE t2.a = t1.a); > +a > +1 > +EXPLAIN > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 USE INDEX() WHERE t2.a = t1.a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where > +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 Using where > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); > +a > +1 > +EXPLAIN > +SELECT * FROM t1 > +WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where > +2 DEPENDENT SUBQUERY t2 ref idx idx 5 test.t1.a 2 Using index > +DROP TABLE t1,t2; > +# > +# BUG#752992: Wrong results for a subquery with 'semijoin=on' > +# > +CREATE TABLE t1 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL); > +INSERT INTO t1 VALUES (11,0); > +INSERT INTO t1 VALUES (12,5); > +INSERT INTO t1 VALUES (15,0); > +CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL); > +INSERT INTO t2 VALUES (11,1); > +INSERT INTO t2 VALUES (12,2); > +INSERT INTO t2 VALUES (15,4); > +EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 3 Start temporary > +1 PRIMARY t2 index NULL PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join) > +1 PRIMARY it eq_ref PRIMARY PRIMARY 4 test.t1.pk 1 Using index; End temporary > +SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); > +pk i > +11 0 > +12 5 > +15 0 > +DROP table t1,t2; > +# > +# Bug#751350: crash with pushed condition for outer references when > +# there should be none of such conditions > +# > +CREATE TABLE t1 (a int, b int) ; > +INSERT INTO t1 VALUES (0,0),(0,0); > +EXPLAIN > +SELECT b FROM t1 > +WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) > +GROUP BY b; > +id select_type table type possible_keys key key_len ref rows Extra > +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort > +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary > +SELECT b FROM t1 > +WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) > +GROUP BY b; > +b > +0 > +DROP TABLE t1; > +# > +# Bug #11765713 58705: > +# OPTIMIZER LET ENGINE DEPEND ON UNINITIALIZED VALUES > +# CREATED BY OPT_SUM_QUERY > +# > +CREATE TABLE t1(a INT NOT NULL, KEY (a)); > +INSERT INTO t1 VALUES (0), (1); > +SELECT 1 as foo FROM t1 WHERE a < SOME > +(SELECT a FROM t1 WHERE a <=> > +(SELECT a FROM t1) > +); > +ERROR 21000: Subquery returns more than 1 row > +SELECT 1 as foo FROM t1 WHERE a < SOME > +(SELECT a FROM t1 WHERE a <=> > +(SELECT a FROM t1 where a is null) > +); > +foo > +DROP TABLE t1; > +# > +# BUG#779885: Crash in eliminate_item_equal with materialization=on in > +# maria-5.3 > +# > +CREATE TABLE t1 ( f1 int ); > +INSERT INTO t1 VALUES (19), (20); > +CREATE TABLE t2 ( f10 varchar(32) ); > +INSERT INTO t2 VALUES ('c'),('d'); > +CREATE TABLE t3 ( f10 varchar(32) ); > +INSERT INTO t3 VALUES ('a'),('b'); > +SELECT * > +FROM t1 > +WHERE > +( 't' ) IN ( > +SELECT t3.f10 > +FROM t3 > +JOIN t2 > +ON t2.f10 = t3.f10 > +); > +f1 > +DROP TABLE t1,t2,t3; > +End of 5.3 tests > +set optimizer_switch=@subselect_tmp; > +set optimizer_switch=default; > +select @@optimizer_switch like '%subquery_cache=on%'; > +@@optimizer_switch like '%subquery_cache=on%' > +0 > > === modified file 'mysql-test/r/subselect_sj.result' > --- a/mysql-test/r/subselect_sj.result 2011-07-13 12:49:52 +0000 > +++ b/mysql-test/r/subselect_sj.result 2011-07-14 09:11:11 +0000 > @@ -761,11 +761,11 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) > show warnings; > Level Code Message > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) > select a from t1 > where a in (select c from t2 where d >= some(select e from t3 where b=e)); > a > > === modified file 'mysql-test/r/subselect_sj_jcl6.result' > --- a/mysql-test/r/subselect_sj_jcl6.result 2011-07-13 12:49:52 +0000 > +++ b/mysql-test/r/subselect_sj_jcl6.result 2011-07-14 09:11:11 +0000 > @@ -771,11 +771,11 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) > show warnings; > Level Code Message > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) > select a from t1 > where a in (select c from t2 where d >= some(select e from t3 where b=e)); > a > > === modified file 'mysql-test/r/subselect_sj_mat.result' > --- a/mysql-test/r/subselect_sj_mat.result 2011-07-08 14:46:47 +0000 > +++ b/mysql-test/r/subselect_sj_mat.result 2011-07-14 09:11:11 +0000 > @@ -349,7 +349,7 @@ id select_type table type possible_keys > 4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > 3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3`.`c2` > '0')) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`))))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) and (`test`.`t3`.`c2` > '0')) > select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 where c2 LIKE '%02') or > @@ -375,7 +375,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) and (`test`.`t3c`.`c2` > '0')) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b2` = `test`.`t3c`.`c2`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3c`.`c1`) and (<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`)))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) and (`test`.`t3c`.`c2` > '0')) > select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 t3a where c1 = a1) or > @@ -414,7 +414,7 @@ id select_type table type possible_keys > 9 SUBQUERY t3i index it3i1,it3i2,it3i3 # # # 4 75.00 # > NULL UNION RESULT <union1,7> ALL NULL # # # NULL NULL # > Warnings: > -Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`)))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2`) semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t1` where ((`test`.`t3`.`c2` = `<subquery2>`.`b2`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`) and (`test`.`t2i`.`b2` = `<subquery2>`.`b2`) and (`test`.`t3`.`c1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t2i`.`b1` = `<subquery2>`.`b1`) and (`<subquery2>`.`b2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))) > +Note 1003 (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%02') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery3>`.`c2`))))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3`.`c2` from `test`.`t3` where (`test`.`t3`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2`) semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t1` where ((`test`.`t3`.`c2` = `<subquery2>`.`b2`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`) and (`test`.`t2i`.`b2` = `<subquery2>`.`b2`) and (`test`.`t3`.`c1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t2i`.`b1` = `<subquery2>`.`b1`) and (`<subquery2>`.`b2` > '0'))) union (select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where ((`test`.`t3i`.`c2` = `test`.`t2i`.`b2`) and (`test`.`t3i`.`c1` = `test`.`t2i`.`b1`) and (`test`.`t2i`.`b1` > '0') and (`test`.`t2i`.`b2` > '0'))) > (select * from t1 > where (a1, a2) in (select b1, b2 from t2 > where b2 in (select c2 from t3 where c2 LIKE '%02') or > @@ -444,7 +444,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0')) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and (`test`.`t3`.`c2` > '0')) > select * from t1 > where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and > (a1, a2) in (select c1, c2 from t3 > @@ -468,7 +468,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t3` where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t3`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`))))) and (`test`.`t3`.`c2` > '0')) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t1` semi join (`test`.`t2i` join `test`.`t3`) join `test`.`t3` where ((`test`.`t2i`.`b2` = `test`.`t3`.`c2`) and (`test`.`t3`.`c1` = `test`.`t1`.`a1`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select `test`.`t1`.`a1`,`test`.`t1`.`a2` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t1`.`a1`) = `test`.`t1`.`a1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t1`.`a2`)) union select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t1`.`a1`) = `test`.`t2`.`b1`) and (<cache>(`test`.`t1`.`a2`) = `test`.`t2`.`b2`)))) and (`test`.`t3`.`c2` > '0')) > select * from t1, t3 > where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where b1 < '9') and > (c1, c2) in (select c1, c2 from t3 > @@ -490,7 +490,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`>(<in_optimizer>(`test`.`t3`.`c1`,<exists>(select `test`.`t1`.`a1` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t3`.`c1`) = `test`.`t1`.`a1`)) union select `test`.`t2`.`b1` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t3`.`c1`) = `test`.`t2`.`b1`))))) > +Note 1003 select `test`.`t3`.`c1` AS `c1`,`test`.`t3`.`c2` AS `c2` from `test`.`t3` where <in_optimizer>(`test`.`t3`.`c1`,<exists>(select `test`.`t1`.`a1` from `test`.`t1` where ((`test`.`t1`.`a1` > '0') and (<cache>(`test`.`t3`.`c1`) = `test`.`t1`.`a1`)) union select `test`.`t2`.`b1` from `test`.`t2` where ((`test`.`t2`.`b1` < '9') and (<cache>(`test`.`t3`.`c1`) = `test`.`t2`.`b1`)))) > select * from t3 > where c1 in (select a1 from t1 where a1 > '0' UNION select b1 from t2 where b1 < '9'); > c1 c2 > @@ -514,14 +514,14 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t1.a2' of SELECT #6 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`)))))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where ((`test`.`t2i`.`b2` = `test`.`t1`.`a2`) and (`test`.`t2`.`b2` = `test`.`t1`.`a2`) and (`test`.`t3c`.`c2` = `test`.`t1`.`a2`) and (`test`.`t2i`.`b1` = `test`.`t1`.`a1`) and (`test`.`t2`.`b1` = `test`.`t1`.`a1`) and (`test`.`t3c`.`c1` = `test`.`t1`.`a1`) and (<in_optimizer>(`test`.`t2`.`b2`,<exists>(select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where ((`test`.`t3a`.`c1` = `test`.`t1`.`a1`) and (<cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`)))) or <in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where (`test`.`t3b`.`c2` like '%03') ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where ((`test`.`t2`.`b2` = `<subquery4>`.`c2`))))))) > explain extended > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01'))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01')))) > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01'); > a1 a2 > 1 - 01 2 - 01 > @@ -531,7 +531,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a2`,`test`.`t1`.`a1`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01'))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),<exists>(select '1 - 01','2 - 01' having (((<cache>(`test`.`t1`.`a1`) = '1 - 01') or isnull('1 - 01')) and ((<cache>(`test`.`t1`.`a2`) = '2 - 01') or isnull('2 - 01')) and <is_not_null_test>('1 - 01') and <is_not_null_test>('2 - 01')))) > select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01' from dual); > a1 a2 > 1 - 01 2 - 01 > @@ -563,7 +563,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using temporary; Using filesort > 2 DEPENDENT SUBQUERY columns unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` group by <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`a1`) in columns on PRIMARY where trigcond((<cache>(`test`.`t1`.`a1`) = `test`.`columns`.`col`)))))) > +Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` group by <in_optimizer>(`test`.`t1`.`a1`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`a1`) in columns on PRIMARY where trigcond((<cache>(`test`.`t1`.`a1`) = `test`.`columns`.`col`))))) > select * from t1 group by (a1 in (select col from columns)); > a1 a2 > 1 - 00 2 - 00 > @@ -663,7 +663,7 @@ id select_type table type possible_keys > 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where > 2 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort > Warnings: > -Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` having (<cache>(`test`.`t1_16`.`a1`) = <ref_null_helper>(group_concat(`test`.`t2_16`.`b1` separator ',')))))) > +Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <in_optimizer>(`test`.`t1_16`.`a1`,<exists>(select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` having (<cache>(`test`.`t1_16`.`a1`) = <ref_null_helper>(group_concat(`test`.`t2_16`.`b1` separator ','))))) > select left(a1,7), left(a2,7) > from t1_16 > where a1 in (select group_concat(b1) from t2_16 group by b2); > @@ -1118,7 +1118,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 group by a having a in (select c from t2 where d >= 20); > a > 2 > @@ -1130,7 +1130,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index > 2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`))))) > select a from t1 group by a having a in (select c from t2 where d >= 20); > a > 2 > @@ -1144,7 +1144,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`,max(`test`.`t1`.`b`)>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<expr_cache><`test`.`t2`.`d`,max(`test`.`t1`.`b`)>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where (max(`test`.`t1`.`b`) = `test`.`t3`.`e`) having (<cache>(`test`.`t2`.`d`) >= <ref_null_helper>(`test`.`t3`.`e`)))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`c` from `test`.`t2` where (<nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where (max(`test`.`t1`.`b`) = `test`.`t3`.`e`) having (<cache>(`test`.`t2`.`d`) >= <ref_null_helper>(`test`.`t3`.`e`))))) and (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`c`)))) > select a from t1 group by a > having a in (select c from t2 where d >= some(select e from t3 where max(b)=e)); > a > @@ -1159,7 +1159,7 @@ id select_type table type possible_keys > 3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))) > +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select `test`.`t3`.`e` from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))) > select a from t1 > where a in (select c from t2 where d >= some(select e from t3 where b=e)); > a > > === modified file 'mysql-test/r/type_datetime.result' > --- a/mysql-test/r/type_datetime.result 2011-07-04 21:44:15 +0000 > +++ b/mysql-test/r/type_datetime.result 2011-07-14 09:11:11 +0000 > @@ -518,7 +518,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE > Warnings: > Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select 1 AS `id`,'2007-04-25 18:30:22' AS `cur_date` from `test`.`t1` where <expr_cache><1,'2007-04-25 18:30:22'>(<in_optimizer>(1,<exists>(select `test`.`x1`.`id` from `test`.`t1` `x1` where 0))) > +Note 1003 select 1 AS `id`,'2007-04-25 18:30:22' AS `cur_date` from `test`.`t1` where <in_optimizer>(1,<exists>(select `test`.`x1`.`id` from `test`.`t1` `x1` where 0)) > select * from t1 > where id in (select id from t1 as x1 where (t1.cur_date is null)); > id cur_date > @@ -530,7 +530,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE > Warnings: > Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select 1 AS `id`,'2007-04-25' AS `cur_date` from `test`.`t2` where <expr_cache><1,'2007-04-25'>(<in_optimizer>(1,<exists>(select `test`.`x1`.`id` from `test`.`t2` `x1` where 0))) > +Note 1003 select 1 AS `id`,'2007-04-25' AS `cur_date` from `test`.`t2` where <in_optimizer>(1,<exists>(select `test`.`x1`.`id` from `test`.`t2` `x1` where 0)) > select * from t2 > where id in (select id from t2 as x1 where (t2.cur_date is null)); > id cur_date > @@ -544,7 +544,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY x1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` where <expr_cache><`test`.`t1`.`id`,`test`.`t1`.`cur_date`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(select `test`.`x1`.`id` from `test`.`t1` `x1` where ((`test`.`t1`.`cur_date` = 0) and (<cache>(`test`.`t1`.`id`) = `test`.`x1`.`id`))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` where <in_optimizer>(`test`.`t1`.`id`,<exists>(select `test`.`x1`.`id` from `test`.`t1` `x1` where ((`test`.`t1`.`cur_date` = 0) and (<cache>(`test`.`t1`.`id`) = `test`.`x1`.`id`)))) > select * from t1 > where id in (select id from t1 as x1 where (t1.cur_date is null)); > id cur_date > @@ -556,7 +556,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY x1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`,`test`.`t2`.`cur_date`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select `test`.`x1`.`id` from `test`.`t2` `x1` where ((`test`.`t2`.`cur_date` = 0) and (<cache>(`test`.`t2`.`id`) = `test`.`x1`.`id`))))) > +Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select `test`.`x1`.`id` from `test`.`t2` `x1` where ((`test`.`t2`.`cur_date` = 0) and (<cache>(`test`.`t2`.`id`) = `test`.`x1`.`id`)))) > select * from t2 > where id in (select id from t2 as x1 where (t2.cur_date is null)); > id cur_date > > === modified file 'mysql-test/suite/pbxt/r/subselect.result' > --- a/mysql-test/suite/pbxt/r/subselect.result 2011-07-06 18:32:07 +0000 > +++ b/mysql-test/suite/pbxt/r/subselect.result 2011-07-14 09:11:11 +0000 > @@ -50,7 +50,7 @@ id select_type table type possible_keys > Warnings: > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having (<expr_cache><1>((select 1)) = 1) > +Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select 1) = 1) > SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1; > 1 > 1 > @@ -313,7 +313,7 @@ NULL UNION RESULT <union2,3> ALL NULL NU > Warnings: > Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1 > Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1 > -Note 1003 select <expr_cache><`test`.`t2`.`a`>((select `test`.`t1`.`a` from `test`.`t1` where (`test`.`t1`.`a` = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`))) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > +Note 1003 select (select `test`.`t1`.`a` from `test`.`t1` where (`test`.`t1`.`a` = `test`.`t2`.`a`) union select `test`.`t5`.`a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2` > select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2; > ERROR 21000: Subquery returns more than 1 row > create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq)); > @@ -331,7 +331,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t7 eq_ref PRIMARY PRIMARY 4 test.t6.clinic_uq 1 100.00 Using index > Warnings: > Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))) > +Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)) > select * from t1 where a= (select a from t2,t4 where t2.b=t4.b); > ERROR 23000: Column 'a' in field list is ambiguous > drop table t1,t2,t3; > @@ -742,7 +742,7 @@ id select_type table type possible_keys > 3 DEPENDENT UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used > NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL > Warnings: > -Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <expr_cache><`test`.`t2`.`id`>(<in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3))))) > +Note 1003 select `test`.`t2`.`id` AS `id` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`id`,<exists>(select 1 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(1)) union select 3 having (<cache>(`test`.`t2`.`id`) = <ref_null_helper>(3)))) > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 3); > id > SELECT * FROM t2 WHERE id IN (SELECT 5 UNION SELECT 2); > @@ -892,7 +892,7 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL PRIMARY 4 NULL 4 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery a a 5 func 2 100.00 Using index > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`))))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in t2 on a checking NULL having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2)` from `test`.`t1` > CREATE TABLE t3 (a int(11) default '0'); > INSERT INTO t3 VALUES (1),(2),(3); > SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1; > @@ -907,7 +907,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ref_or_null a a 5 func 2 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) > Warnings: > -Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`a` AS `a`,<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and ((<cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having <is_not_null_test>(`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` > drop table t1,t2,t3; > create table t1 (a float); > select 10.5 IN (SELECT * from t1 LIMIT 1); > @@ -1297,7 +1297,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1307,7 +1307,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<primary_index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on PRIMARY where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1318,7 +1318,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 func 1 100.00 Using where > 2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY PRIMARY 4 test.t1.b 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > drop table t1, t2, t3; > create table t1 (a int, b int, index a (a,b)); > create table t2 (a int, index a (a)); > @@ -1336,7 +1336,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a)))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a))) > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > 2 > @@ -1346,7 +1346,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); > a > 2 > @@ -1357,7 +1357,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ref a a 5 func 1 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t3 ref a a 5 test.t1.b 1 100.00 Using index > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) > insert into t1 values (3,31); > select * from t2 where t2.a in (select a from t1 where t1.b <> 30); > a > @@ -1373,7 +1373,7 @@ id select_type table type possible_keys > 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index > 2 DEPENDENT SUBQUERY t1 index_subquery a a 5 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))))) > +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a where ((`test`.`t1`.`b` <> 30) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`))))) > drop table t1, t2, t3; > create table t1 (a int, b int); > create table t2 (a int, b int); > @@ -1464,25 +1464,25 @@ id select_type table type possible_keys > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` > explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index > 2 DEPENDENT SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Using where; Full scan on NULL key > Warnings: > -Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > +Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL where (`test`.`t2`.`s1` < 'a2') having trigcond(<is_not_null_test>(`test`.`t2`.`s1`))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` > drop table t1,t2; > create table t2 (a int, b int); > create table t3 (a int); > @@ -1737,14 +1737,14 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 unique_subquery PRIMARY PRIMARY 4 func 1 100.00 Using index; Using where > Warnings: > -Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`)))))))) > +Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`id`,<exists>(<primary_index_lookup>(<cache>(`test`.`t1`.`id`) in t1 on PRIMARY where ((`test`.`t1`.`id` < 8) and (<cache>(`test`.`t1`.`id`) = `test`.`t1`.`id`))))))) > explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY tt ALL NULL NULL NULL NULL 12 100.00 Using where > 2 DEPENDENT SUBQUERY t1 eq_ref PRIMARY PRIMARY 4 test.tt.id 1 100.00 Using where; Using index > Warnings: > Note 1276 Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))) > +Note 1003 select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))) > insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001'); > create table t2 (id int not null, text varchar(20) not null default '', primary key (id)); > insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10'); > @@ -2281,7 +2281,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))) > +Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)) > drop table t1; > CREATE TABLE t1 (t1_a int); > INSERT INTO t1 VALUES (1); > @@ -2824,19 +2824,19 @@ id select_type table type possible_keys > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = '0') and trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`)))) having (trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 Using where > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`))))) > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where ((`test`.`t2`.`flag` = 'N') and (<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) and (<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`)))) > explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; > id select_type table type possible_keys key key_len ref rows filtered Extra > 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary > Warnings: > -Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`two`,`test`.`t1`.`one`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1` > +Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1` > DROP TABLE t1,t2; > set @@optimizer_switch=@save_optimizer_switch; > CREATE TABLE t1 (a char(5), b char(5)); > @@ -4279,7 +4279,7 @@ id select_type table type possible_keys > 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where > Warnings: > Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 > -Note 1003 select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))) > +Note 1003 select 2 AS `2` from `test`.`t1` where exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) > EXPLAIN EXTENDED > SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION > (SELECT 1 FROM t2 WHERE t1.a = t2.a)); > > === added file 'mysql-test/t/subselect_no_scache.test' > --- a/mysql-test/t/subselect_no_scache.test 1970-01-01 00:00:00 +0000 > +++ b/mysql-test/t/subselect_no_scache.test 2011-07-14 09:11:11 +0000 > @@ -0,0 +1,11 @@ > +# > +# Run subselect.test without semi-join optimization (test materialize) > +# > +select @@optimizer_switch like '%subquery_cache=on%'; > +set optimizer_switch='subquery_cache=off'; > + > +--source t/subselect.test > + > +set optimizer_switch=default; > +select @@optimizer_switch like '%subquery_cache=on%'; > + > > === added file 'mysql-test/t/subselect_scache.test' > --- a/mysql-test/t/subselect_scache.test 1970-01-01 00:00:00 +0000 > +++ b/mysql-test/t/subselect_scache.test 2011-07-14 09:11:11 +0000 > @@ -0,0 +1,11 @@ > +# > +# Run subselect.test without semi-join optimization (test materialize) > +# > +select @@optimizer_switch like '%subquery_cache=on%'; > +set optimizer_switch='subquery_cache=on'; > + > +--source t/subselect.test > + > +set optimizer_switch=default; > +select @@optimizer_switch like '%subquery_cache=on%'; > + > > === modified file 'sql/mysql_priv.h' > --- a/sql/mysql_priv.h 2011-07-08 15:09:30 +0000 > +++ b/sql/mysql_priv.h 2011-07-14 09:11:11 +0000 > @@ -610,7 +610,6 @@ enabled by default, add OPTIMIZER_SWITCH > OPTIMIZER_SWITCH_IN_TO_EXISTS | \ > OPTIMIZER_SWITCH_PARTIAL_MATCH_ROWID_MERGE|\ > OPTIMIZER_SWITCH_PARTIAL_MATCH_TABLE_SCAN|\ > - OPTIMIZER_SWITCH_SUBQUERY_CACHE|\ > OPTIMIZER_SWITCH_JOIN_CACHE_INCREMENTAL | \ > OPTIMIZER_SWITCH_JOIN_CACHE_HASHED | \ > OPTIMIZER_SWITCH_JOIN_CACHE_BKA | \ > > === modified file 'sql/mysqld.cc' > --- a/sql/mysqld.cc 2011-07-08 15:09:30 +0000 > +++ b/sql/mysqld.cc 2011-07-14 09:11:11 +0000 > @@ -491,7 +491,7 @@ static const char *optimizer_switch_str= > "semijoin=off," > "partial_match_rowid_merge=on," > "partial_match_table_scan=on," > - "subquery_cache=on," > + "subquery_cache=off," > "mrr=off," > "mrr_cost_based=off," > "mrr_sort_keys=off," > > _______________________________________________ > commits mailing list > commits(a)mariadb.org > https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits -- BR Sergey -- Sergey Petrunia, Software Developer Monty Program AB, http://askmonty.org Blog: http://s.petrunia.net/blog

1 0

[Maria-developers] Fwd: [Commits] Rev 3108: Fix bug lp:777691 in file:///home/tsk/mprog/src/5.3-work/
by Timour Katchaounov 14 Jul '11

14 Jul '11

Sergey, Please review the below patch. As discussed, all other solutions that try to keep the call to mark_as_null_row() lead to a chicken-egg-like problem that is tricky to solve. Since I am not sure it is worth solving, I suggest the below simple solution. Timour ------------------------------------------------------------ revno: 3108 revision-id: timour(a)askmonty.org-20110714095300-bwi0z7x542cj2avd parent: timour(a)askmonty.org-20110714072218-hty7xnwn1dxmn9a3 fixes bug(s): https://launchpad.net/bugs/777691 committer: timour(a)askmonty.org branch nick: 5.3-work timestamp: Thu 2011-07-14 12:53:00 +0300 message: Fix bug lp:777691 Analysis: For some of the re-executions of the correlated subquery the where clause is false. In these cases the execution of the subquery detects that it must generate a NULL row because of implicit grouping. In this case the subquery execution reaches the following code in do_select(): while ((table= li++)) mark_as_null_row(table->table); This code marks all rows in the table as complete NULL rows. In the example, when evaluating the field t2.f10 for the second row, all bits of Field::null_ptr[0] are set by the previous call to mark_as_null_row(). Then the call to Field::is_null() returns true, resulting in a NULL for the MAX function. Thus the lines above are not suitable for subquery re-execution because mark_as_null_row() changes the NULL bits of each table field, and there is no logic to restore these fields. Solution: The call to mark_as_null_row() was added by the fix for bug lp:613029. Therefore removing the fix for lp:613029 corrects this wrong result. At the same time the test for lp:613029 behaves correctly because the changes of MWL#89 result in a different execution path where: - the constant subquery is evaluated via JOIN::exec_const_cond - detecting that it has an empty result triggers the branch if (zero_result_cause) return_zero_rows() - return_zero_rows() calls mark_as_null_row().

1 0

[Maria-developers] Fwd: [Commits] Rev 3092: Fixed bug lp:809245 in file:///home/tsk/mprog/src/5.3-mwl89/
by Timour Katchaounov 14 Jul '11

14 Jul '11

Igor, Could you please review my patch for bug LP:809245. Ttimour -------- Original Message -------- Return-Path: <commits-bounces(a)mariadb.org> X-Original-To: timour(a)askmonty.org Delivered-To: timour(a)askmonty.org Received: from localhost (localhost.localdomain [127.0.0.1]) by hasky.askmonty.org (Postfix) with ESMTP id 1014BE104C; Wed, 13 Jul 2011 17:09:26 +0300 (EEST) X-Virus-Scanned: Debian amavisd-new at mail.askmonty.org Received: from hasky.askmonty.org ([127.0.0.1]) by localhost (mail.askmonty.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2zpPCMRHKtn9; Wed, 13 Jul 2011 17:09:26 +0300 (EEST) Received: from hasky.askmonty.org (localhost.localdomain [127.0.0.1]) by hasky.askmonty.org (Postfix) with ESMTP id BC862E1049; Wed, 13 Jul 2011 17:09:26 +0300 (EEST) Received: by hasky.askmonty.org (Postfix) id 756A7E1049; Wed, 13 Jul 2011 17:09:25 +0300 (EEST) Delivered-To: commits(a)mariadb.org Received: from localhost (localhost.localdomain [127.0.0.1]) by hasky.askmonty.org (Postfix) with ESMTP id 641B3E104A for <commits(a)mariadb.org>; Wed, 13 Jul 2011 17:09:25 +0300 (EEST) X-Virus-Scanned: Debian amavisd-new at mail.askmonty.org Received: from hasky.askmonty.org ([127.0.0.1]) by localhost (mail.askmonty.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PF4tvWx7nmEU for <commits(a)mariadb.org>; Wed, 13 Jul 2011 17:09:19 +0300 (EEST) Received: from localhost6.localdomain6 (unknown [91.148.138.177]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hasky.askmonty.org (Postfix) with ESMTPSA id DCEAEE1049 for <commits(a)mariadb.org>; Wed, 13 Jul 2011 17:09:18 +0300 (EEST) Content-Type: multipart/mixed; boundary="===============3088248604612826632==" MIME-Version: 1.0 From: <timour(a)askmonty.org> User-Agent: bzr/2.3.1 To: <commits(a)mariadb.org> Message-Id: <20110713140918.DCEAEE1049(a)hasky.askmonty.org> Date: Wed, 13 Jul 2011 17:09:18 +0300 (EEST) Subject: [Commits] Rev 3092: Fixed bug lp:809245 in file:///home/tsk/mprog/src/5.3-mwl89/ X-BeenThere: commits(a)mariadb.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: maria-developers(a)lists.launchpad.net List-Id: MariaDB Commits List <commits.mariadb.org> List-Unsubscribe: <https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits>, <mailto:commits-request@mariadb.org?subject=unsubscribe> List-Archive: <http://lists.askmonty.org/pipermail/commits> List-Post: <mailto:commits@mariadb.org> List-Help: <mailto:commits-request@mariadb.org?subject=help> List-Subscribe: <https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits>, <mailto:commits-request@mariadb.org?subject=subscribe> Sender: commits-bounces(a)mariadb.org Errors-To: commits-bounces(a)mariadb.org At file:///home/tsk/mprog/src/5.3-mwl89/ ------------------------------------------------------------ revno: 3092 revision-id: timour(a)askmonty.org-20110713140909-rkka410svyafz4jn parent: timour(a)askmonty.org-20110708075646-h4kmmn8mmihfmh1f fixes bug(s): https://launchpad.net/bugs/809245 committer: timour(a)askmonty.org branch nick: 5.3-mwl89 timestamp: Wed 2011-07-13 17:09:09 +0300 message: Fixed bug lp:809245 In addition to the bug fix explained below, the patch performs few renames, and adds some comments to avoid similar problems. Analysis: The failed assert was due to a bug in MWL#68, where it was incorrectly assumed that the size of the bitmap subselect_rowid_merge_engine::null_only_columns should be the same as the size of the array of Ordered_keys. The bitmap null_only_columns contains bits to mark columns that contain only NULLs. Therefore the indexes of the bits to be set in null_only_columns are different from the indexes of the Ordered_keys. If there is a NULL-only column that appears in a table after the last partial match column with Ordered_key, this NULL-only column would require setting a bit with index bigger than the size of the bitmap null_only_columns. Accessing such a bit caused the failed assert. Solution: Upon analysis, it turns out that null_only_columns is not needed at all, because we are looking for partial matches, and having such columns guarantees that there is a partial match for any corresponding outer value. Therefore the patch removes subselect_rowid_merge_engine::null_only_columns.

2 1

[Maria-developers] Fwd: [Commits] Rev 3104: Fix bug lp:809266 in file:///home/tsk/mprog/src/5.3-mwl89/
by Timour Katchaounov 14 Jul '11

14 Jul '11

Igor, Could you please review this fix for bug lp:809266. Timour ------------------------------------------------------------ revno: 3104 revision-id: timour(a)askmonty.org-20110713211507-j9v80yk2tzae8tq2 parent: timour(a)askmonty.org-20110713141146-339e3xwz17hogqsb fixes bug(s): https://launchpad.net/bugs/809266 committer: timour(a)askmonty.org branch nick: 5.3-mwl89 timestamp: Thu 2011-07-14 00:15:07 +0300 message: Fix bug lp:809266 Analysis: This is a bug in MWL#68, where it was incorrectly assumed that if there is a match in the only non-null key, then if there is a covering NULL row on all remaining NULL-able columns there is a partial match. However, this is not the case, because even if there is such a null-only sub-row, it is not guaranteed to be part of the matched sub-row. The matched sub-row and the NULL-only sub-row may be parts of different rows. In fact there are two cases: - there is a complete row with only NULL values, and - all nullable columns contain only NULL values. These two cases were incorrectly mixed up in the class member subselect_partial_match_engine::covering_null_row_width. Solution: The solution is to: - split covering_null_row_width into two members: has_covering_null_row, and has_covering_null_columns, and - take into account each state during initialization and execution.

2 1

[Maria-developers] Timour please review: [Commits] Rev 3096: BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89
by Sergey Petrunya 13 Jul '11

13 Jul '11

Hi Timour, Could you please review the below: ----- Forwarded message from Sergey Petrunya <psergey(a)askmonty.org> ----- From: Sergey Petrunya <psergey(a)askmonty.org> To: commits(a)mariadb.org X-Mailer: mail (GNU Mailutils 1.2) Date: Thu, 14 Jul 2011 00:43:12 +0400 (MSD) Subject: [Commits] Rev 3096: BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 in file:///home/psergey/dev2/5.3-push7/ At file:///home/psergey/dev2/5.3-push7/ ------------------------------------------------------------ revno: 3096 revision-id: psergey(a)askmonty.org-20110713204306-tsxnddr8v3v0i6bg parent: psergey(a)askmonty.org-20110709123340-1qe0558i8p352p2v committer: Sergey Petrunya <psergey(a)askmonty.org> branch nick: 5.3-push7 timestamp: Thu 2011-07-14 00:43:06 +0400 message: BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 - Make {ha_myisam,ha_maria}::index_read_idx_map check pushed index condition. === modified file 'mysql-test/include/icp_tests.inc' --- a/mysql-test/include/icp_tests.inc 2011-02-09 03:17:12 +0000 +++ b/mysql-test/include/icp_tests.inc 2011-07-13 20:43:06 +0000 @@ -225,3 +225,32 @@ DROP PROCEDURE insert_data; DROP TABLE t1, t2, t3; + +--echo # +--echo # BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 +--echo # +CREATE TABLE t1 ( f11 int) ; +INSERT IGNORE INTO t1 VALUES (0); + +CREATE TABLE t2 ( f10 int) ; +INSERT IGNORE INTO t2 VALUES (0); + +CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ; +INSERT IGNORE INTO t3 VALUES (6,0),(10,0); + +CREATE TABLE t4 ( f11 int) ; +INSERT IGNORE INTO t4 VALUES +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL), +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0); + +set @tmp_778434=@@optimizer_switch; +SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off'; + +SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11 +WHERE (6, 234) IN ( + SELECT t3.f1, t3.f1 + FROM t3 JOIN t4 ON t4.f11 = t3.f10 +); + +DROP TABLE t1,t2,t3,t4; +set optimizer_switch= @tmp_778434; === modified file 'mysql-test/r/innodb_icp.result' --- a/mysql-test/r/innodb_icp.result 2011-07-08 14:46:47 +0000 +++ b/mysql-test/r/innodb_icp.result 2011-07-13 20:43:06 +0000 @@ -202,5 +202,28 @@ 12 DROP PROCEDURE insert_data; DROP TABLE t1, t2, t3; +# +# BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 +# +CREATE TABLE t1 ( f11 int) ; +INSERT IGNORE INTO t1 VALUES (0); +CREATE TABLE t2 ( f10 int) ; +INSERT IGNORE INTO t2 VALUES (0); +CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ; +INSERT IGNORE INTO t3 VALUES (6,0),(10,0); +CREATE TABLE t4 ( f11 int) ; +INSERT IGNORE INTO t4 VALUES +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL), +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0); +set @tmp_778434=@@optimizer_switch; +SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off'; +SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11 +WHERE (6, 234) IN ( +SELECT t3.f1, t3.f1 +FROM t3 JOIN t4 ON t4.f11 = t3.f10 +); +f11 f10 +DROP TABLE t1,t2,t3,t4; +set optimizer_switch= @tmp_778434; set optimizer_switch=@innodb_icp_tmp; set storage_engine= @save_storage_engine; === modified file 'mysql-test/r/maria_icp.result' --- a/mysql-test/r/maria_icp.result 2011-07-08 14:46:47 +0000 +++ b/mysql-test/r/maria_icp.result 2011-07-13 20:43:06 +0000 @@ -202,5 +202,28 @@ 12 DROP PROCEDURE insert_data; DROP TABLE t1, t2, t3; +# +# BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 +# +CREATE TABLE t1 ( f11 int) ; +INSERT IGNORE INTO t1 VALUES (0); +CREATE TABLE t2 ( f10 int) ; +INSERT IGNORE INTO t2 VALUES (0); +CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ; +INSERT IGNORE INTO t3 VALUES (6,0),(10,0); +CREATE TABLE t4 ( f11 int) ; +INSERT IGNORE INTO t4 VALUES +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL), +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0); +set @tmp_778434=@@optimizer_switch; +SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off'; +SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11 +WHERE (6, 234) IN ( +SELECT t3.f1, t3.f1 +FROM t3 JOIN t4 ON t4.f11 = t3.f10 +); +f11 f10 +DROP TABLE t1,t2,t3,t4; +set optimizer_switch= @tmp_778434; set storage_engine= @save_storage_engine; set optimizer_switch=@maria_icp_tmp; === modified file 'mysql-test/r/myisam_icp.result' --- a/mysql-test/r/myisam_icp.result 2011-07-08 14:46:47 +0000 +++ b/mysql-test/r/myisam_icp.result 2011-07-13 20:43:06 +0000 @@ -198,6 +198,29 @@ 12 DROP PROCEDURE insert_data; DROP TABLE t1, t2, t3; +# +# BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89 +# +CREATE TABLE t1 ( f11 int) ; +INSERT IGNORE INTO t1 VALUES (0); +CREATE TABLE t2 ( f10 int) ; +INSERT IGNORE INTO t2 VALUES (0); +CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ; +INSERT IGNORE INTO t3 VALUES (6,0),(10,0); +CREATE TABLE t4 ( f11 int) ; +INSERT IGNORE INTO t4 VALUES +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL), +(0),(0),(0),(0),(0),(0),(0),(0),(0),(0); +set @tmp_778434=@@optimizer_switch; +SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off'; +SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11 +WHERE (6, 234) IN ( +SELECT t3.f1, t3.f1 +FROM t3 JOIN t4 ON t4.f11 = t3.f10 +); +f11 f10 +DROP TABLE t1,t2,t3,t4; +set optimizer_switch= @tmp_778434; set @myisam_icp_tmp=@@optimizer_switch; set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; drop table if exists t0, t1, t1i, t1m; === modified file 'sql/sql_class.h' --- a/sql/sql_class.h 2011-07-01 12:08:30 +0000 +++ b/sql/sql_class.h 2011-07-13 20:43:06 +0000 @@ -3633,6 +3633,7 @@ enum ha_rkey_function find_flag) { increment_statistics(&SSV::ha_read_key_count); + DBUG_ASSERT(inited==NONE); int error= index_read_idx_map(buf, index, key, keypart_map, find_flag); if (!error) { === modified file 'storage/maria/ha_maria.cc' --- a/storage/maria/ha_maria.cc 2011-07-01 12:16:10 +0000 +++ b/storage/maria/ha_maria.cc 2011-07-13 20:43:06 +0000 @@ -2259,7 +2259,14 @@ key_part_map keypart_map, enum ha_rkey_function find_flag) { - int error= maria_rkey(file, buf, index, key, keypart_map, find_flag); + int error; + /* Use the pushed index condition if it matches the index we're scanning */ + if (index == pushed_idx_cond_keyno) + ma_set_index_cond_func(file, index_cond_func_maria, this); + + error= maria_rkey(file, buf, index, key, keypart_map, find_flag); + + ma_set_index_cond_func(file, NULL, 0); table->status= error ? STATUS_NOT_FOUND : 0; return error; } === modified file 'storage/myisam/ha_myisam.cc' --- a/storage/myisam/ha_myisam.cc 2011-06-24 17:43:31 +0000 +++ b/storage/myisam/ha_myisam.cc 2011-07-13 20:43:06 +0000 @@ -1790,7 +1790,13 @@ key_part_map keypart_map, enum ha_rkey_function find_flag) { - return mi_rkey(file, buf, index, key, keypart_map, find_flag); + int res; + /* Use the pushed index condition if it matches the index we're scanning */ + if (index == pushed_idx_cond_keyno) + mi_set_index_cond_func(file, index_cond_func_myisam, this); + res= mi_rkey(file, buf, index, key, keypart_map, find_flag); + mi_set_index_cond_func(file, NULL, 0); + return res; } int ha_myisam::index_next(uchar *buf) _______________________________________________ commits mailing list commits(a)mariadb.org https://lists.askmonty.org/cgi-bin/mailman/listinfo/commits ----- End forwarded message ----- -- BR Sergey -- Sergey Petrunia, Software Developer Monty Program AB, http://askmonty.org Blog: http://s.petrunia.net/blog

1 0

Re: [Maria-developers] [Commits] Rev 3096: Alternate version of MySQL's fix for BUG#49453. in file:///home/psergey/dev2/5.3-push6/
by Timour Katchaounov 11 Jul '11

11 Jul '11

Sergey, This is not a review, just a quick look at the patch. The below solution is totally cryptic. Please add a comment why items in the ref_array are the right ones. If someone ever has to deal with this code, even your commit comment (not speaking that there is no code comment) will provide absolutely no clue why items should be taken from the ref-array. Timour

1 0

Jump to page: