Re: [Maria-developers] [Commits] Rev 2828: MWL#128: Added into EXPLAIN output info about types of the used join buffers and in file:///home/igor/maria/maria-5.3-mwl128-names/

Hello Igor, Ok to push (.result differences checked), with exception that change to Makefile.am must not be pushed. On Fri, Oct 08, 2010 at 12:30:18PM -0700, Igor Babaev wrote:

At file:///home/igor/maria/maria-5.3-mwl128-names/

------------------------------------------------------------ revno: 2828 revision-id: igor@askmonty.org-20101008193016-r9cuu8bvkpa1bmxg parent: igor@askmonty.org-20101006202712-ehecsi9kc0tj52jc committer: Igor Babaev branch nick: maria-5.3-mwl128-names timestamp: Fri 2010-10-08 12:30:16 -0700 message: MWL#128: Added into EXPLAIN output info about types of the used join buffers and about the employed join algorithms. Refactored constructors of the JOIN_CACHE* classes.

=== modified file 'Makefile.am' --- a/Makefile.am 2010-03-29 15:13:53 +0000 +++ b/Makefile.am 2010-10-08 19:30:16 +0000 @@ -317,10 +317,15 @@ #

abi_check: $(API_PREPROCESSOR_HEADER) - $(MAKE) abi_headers="$^" do_abi_check + echo "OK" + +#$(MAKE) abi_headers="$^" do_abi_check

abi_check_all: $(TEST_PREPROCESSOR_HEADER) - $(MAKE) abi_headers="$^" do_abi_check + echo "OK" + + +# $(MAKE) abi_headers="$^" do_abi_check

do_abi_check: set -ex; \

=== modified file 'mysql-test/r/archive_gis.result' --- a/mysql-test/r/archive_gis.result 2009-02-10 13:27:35 +0000 +++ b/mysql-test/r/archive_gis.result 2010-10-08 19:30:16 +0000 @@ -403,7 +403,7 @@ FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;

=== modified file 'mysql-test/r/compress.result' --- a/mysql-test/r/compress.result 2009-12-15 07:16:46 +0000 +++ b/mysql-test/r/compress.result 2010-10-08 19:30:16 +0000 @@ -1435,7 +1435,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008

=== modified file 'mysql-test/r/ctype_utf8.result' --- a/mysql-test/r/ctype_utf8.result 2010-03-04 08:03:07 +0000 +++ b/mysql-test/r/ctype_utf8.result 2010-10-08 19:30:16 +0000 @@ -1537,7 +1537,7 @@ select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Y ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -1 SIMPLE Z ALL NULL NULL NULL NULL 2 Using where; Using join buffer +1 SIMPLE Z ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1; substr(Z.a,-1) a 3 123

=== modified file 'mysql-test/r/derived.result' --- a/mysql-test/r/derived.result 2009-07-11 18:44:29 +0000 +++ b/mysql-test/r/derived.result 2010-10-08 19:30:16 +0000 @@ -58,7 +58,7 @@ explain select * from t1 as x1, (select * from t1) as x2; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY x1 ALL NULL NULL NULL NULL 4 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 Using join buffer (flat, BNL join) 2 DERIVED t1 ALL NULL NULL NULL NULL 4 drop table if exists t2,t3; select * from (select 1) as a; @@ -189,13 +189,13 @@ explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY m2 ALL NULL NULL NULL NULL 9 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY m2 ALL NULL NULL NULL NULL 9 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 drop table t1,t2; @@ -246,7 +246,7 @@ explain select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 -1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2 Using join buffer +1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) 4 DERIVED t1 ALL NULL NULL NULL NULL 2 5 UNION t1 ALL NULL NULL NULL NULL 2 NULL UNION RESULT ALL NULL NULL NULL NULL NULL @@ -313,7 +313,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 Using temporary; Using filesort 2 DERIVED x ALL NULL NULL NULL NULL 17 Using temporary; Using filesort -2 DERIVED y ALL NULL NULL NULL NULL 17 Using where; Using join buffer +2 DERIVED y ALL NULL NULL NULL NULL 17 Using where; Using join buffer (flat, BNL join) drop table t1; create table t2 (a int, b int, primary key (a)); insert into t2 values (1,7),(2,7);

=== modified file 'mysql-test/r/distinct.result' --- a/mysql-test/r/distinct.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/distinct.result 2010-10-08 19:30:16 +0000 @@ -175,7 +175,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using where; Using temporary 1 SIMPLE t3 ref a a 5 test.t1.b 2 Using index -1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct; Using join buffer +1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct; Using join buffer (flat, BNL join) SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a; a 1 @@ -300,11 +300,11 @@ AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2)); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index id id 4 NULL 2 Using index; Using temporary -1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join buffer -1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join buffer -1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer +1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join buffer (flat, BNL join) +1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join buffer (flat, BNL join) +1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer (flat, BNL join) 1 SIMPLE t2_lj ref id id 4 test.j_lj_t2.id 1 Using where; Using index; Distinct -1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer +1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer (flat, BNL join) 1 SIMPLE t3_lj ref id id 4 test.j_lj_t3.id 1 Using where; Using index; Distinct SELECT DISTINCT t1.id @@ -515,7 +515,7 @@ EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1_1 ALL NULL NULL NULL NULL 3 Using temporary -1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct; Using join buffer +1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct; Using join buffer (flat, BNL join) EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2 WHERE t1_1.a = t1_2.a; id select_type table type possible_keys key key_len ref rows Extra

=== modified file 'mysql-test/r/explain.result' --- a/mysql-test/r/explain.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/r/explain.result 2010-10-08 19:30:16 +0000 @@ -116,7 +116,7 @@ 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 -2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` EXPLAIN EXTENDED SELECT 1 @@ -124,34 +124,34 @@ 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 -2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer -Warnings: -Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` -prepare s1 from -'EXPLAIN EXTENDED SELECT 1 - FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; -execute s1; -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 -2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer -Warnings: -Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` -prepare s1 from -'EXPLAIN EXTENDED SELECT 1 - FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; -execute s1; -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 -2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer -Warnings: -Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` -execute s1; -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 -2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) +Warnings: +Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` +prepare s1 from +'EXPLAIN EXTENDED SELECT 1 + FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; +execute s1; +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 +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) +Warnings: +Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` +prepare s1 from +'EXPLAIN EXTENDED SELECT 1 + FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; +execute s1; +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 +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) +Warnings: +Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` +execute s1; +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 +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` DROP TABLE t1,t2;

=== modified file 'mysql-test/r/func_gconcat.result' --- a/mysql-test/r/func_gconcat.result 2010-03-31 13:00:56 +0000 +++ b/mysql-test/r/func_gconcat.result 2010-10-08 19:30:16 +0000 @@ -986,7 +986,7 @@ 1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Distinct -2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Distinct; Using join buffer +2 DERIVED td ALL NULL NULL NULL NULL 2 100.00 Distinct; Using join buffer (flat, BNL join) Warnings: Note 1003 select 1 AS `1` from (select distinct group_concat(`test`.`td`.`f1` separator ',') AS `GROUP_CONCAT(td.f1)` from `test`.`t1` join `test`.`t1` `td` group by `test`.`td`.`f1`) `d` join `test`.`t1` SELECT 1 FROM @@ -1006,7 +1006,7 @@ 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 2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort -2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select 1 AS `1` from (select group_concat(`test`.`t1`.`a` order by `test`.`t1`.`a` ASC separator ',') AS `GROUP_CONCAT(t1.a ORDER BY t1.a ASC)` from `test`.`t1` `t2` join `test`.`t1` group by `test`.`t1`.`a`) `d` DROP TABLE t1;

=== modified file 'mysql-test/r/func_group.result' --- a/mysql-test/r/func_group.result 2010-03-20 12:01:47 +0000 +++ b/mysql-test/r/func_group.result 2010-10-08 19:30:16 +0000 @@ -614,7 +614,7 @@ select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 > 'CA'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index -1 SIMPLE t2 range k1 k1 3 NULL 4 Using where; Using index; Using join buffer +1 SIMPLE t2 range k1 k1 3 NULL 4 Using where; Using index; Using join buffer (flat, BNL join) explain select min(a4 - 0.01) from t1; id select_type table type possible_keys key key_len ref rows Extra @@ -651,7 +651,7 @@ select concat(min(t1.a1),min(t2.a4)) from t1, t2 where t2.a4 <> 'AME'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 range k2 k2 4 NULL 6 Using where; Using index -1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index; Using join buffer +1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index; Using join buffer (flat, BNL join) drop table t1, t2; create table t1 (a char(10)); insert into t1 values ('a'),('b'),('c');

=== modified file 'mysql-test/r/func_group_innodb.result' --- a/mysql-test/r/func_group_innodb.result 2007-05-29 12:58:18 +0000 +++ b/mysql-test/r/func_group_innodb.result 2010-10-08 19:30:16 +0000 @@ -79,7 +79,7 @@ explain select min(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2i ALL NULL NULL NULL NULL 1 -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) select min(7) from t2i join t1i; min(7) NULL @@ -95,7 +95,7 @@ explain select max(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2i ALL NULL NULL NULL NULL 1 -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) select max(7) from t2i join t1i; max(7) NULL

=== modified file 'mysql-test/r/func_str.result' --- a/mysql-test/r/func_str.result 2010-03-26 05:49:35 +0000 +++ b/mysql-test/r/func_str.result 2010-10-08 19:30:16 +0000 @@ -2550,12 +2550,12 @@ explain select 1 as a from t1,(select decode(f1,f1) as b from t1) a; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) 2 DERIVED t1 ALL NULL NULL NULL NULL 2 explain select 1 as a from t1,(select encode(f1,f1) as b from t1) a; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) 2 DERIVED t1 ALL NULL NULL NULL NULL 2 drop table t1; #

=== modified file 'mysql-test/r/gis.result' --- a/mysql-test/r/gis.result 2010-02-26 13:16:46 +0000 +++ b/mysql-test/r/gis.result 2010-10-08 19:30:16 +0000 @@ -395,7 +395,7 @@ FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;

=== modified file 'mysql-test/r/greedy_optimizer.result' --- a/mysql-test/r/greedy_optimizer.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/greedy_optimizer.result 2010-10-08 19:30:16 +0000 @@ -121,11 +121,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -133,11 +133,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -145,11 +145,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -157,11 +157,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -169,11 +169,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -181,11 +181,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -201,11 +201,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -213,11 +213,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -225,11 +225,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -237,11 +237,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -249,11 +249,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -261,11 +261,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -277,11 +277,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -289,11 +289,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -304,9 +304,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -316,9 +316,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -328,9 +328,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -340,9 +340,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -353,11 +353,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -365,11 +365,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -377,11 +377,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -389,11 +389,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -401,11 +401,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -413,11 +413,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -433,11 +433,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -445,11 +445,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -457,11 +457,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -469,11 +469,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -481,11 +481,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -493,11 +493,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -509,11 +509,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -521,11 +521,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -536,9 +536,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -548,9 +548,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -560,9 +560,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -572,9 +572,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -585,11 +585,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -597,11 +597,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -609,11 +609,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -621,11 +621,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -633,11 +633,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -645,11 +645,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value

=== modified file 'mysql-test/r/group_by.result' --- a/mysql-test/r/group_by.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/group_by.result 2010-10-08 19:30:16 +0000 @@ -537,11 +537,11 @@ explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) drop table t1,t2; create table t1 (a int, b int); insert into t1 values (1, 4),(10, 40),(1, 4),(10, 43),(1, 4),(10, 41),(1, 4),(10, 43),(1, 4);

=== modified file 'mysql-test/r/group_min_max.result' --- a/mysql-test/r/group_min_max.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/r/group_min_max.result 2010-10-08 19:30:16 +0000 @@ -2267,7 +2267,7 @@ AND t1_outer1.b = t1_outer2.b; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index -1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer +1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer (flat, BNL join) 2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;

=== modified file 'mysql-test/r/index_merge_myisam.result' --- a/mysql-test/r/index_merge_myisam.result 2010-07-16 08:58:24 +0000 +++ b/mysql-test/r/index_merge_myisam.result 2010-10-08 19:30:16 +0000 @@ -271,7 +271,7 @@ (t1.key1 = t0.key1 or t1.key8 = t0.key1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t0 ref i1 i1 4 const 1 -1 SIMPLE t1 index_merge i1,i8 i1,i8 4,4 NULL 2 Using union(i1,i8); Using where; Using join buffer +1 SIMPLE t1 index_merge i1,i8 i1,i8 4,4 NULL 2 Using union(i1,i8); Using where; Using join buffer (flat, BNL join) explain select * from t0,t1 where t0.key1 < 3 and (t1.key1 = t0.key1 or t1.key8 = t0.key1); id select_type table type possible_keys key key_len ref rows Extra @@ -348,7 +348,7 @@ and (B.key1 < 500000 or B.key2 < 3); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where -1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where; Using join buffer +1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where; Using join buffer (flat, BNL join) select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 < 500000 or A.key2 < 3) @@ -362,7 +362,7 @@ and (B.key1 = 1 or B.key2 = 1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where -1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where; Using join buffer +1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where; Using join buffer (flat, BNL join) select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 = 1 or A.key2 = 1) @@ -377,7 +377,7 @@ and (B.key1 = 1 and B.key2 = 1 and B.key3 = 1 and B.key4=1 and B.key5=1 and B.key6=1 and B.key7 = 1 or B.key8=1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE A index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where -1 SIMPLE B index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where; Using join buffer +1 SIMPLE B index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where; Using join buffer (flat, BNL join) select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A, t0 as B where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7 = 1 or A.key8=1)

=== modified file 'mysql-test/r/information_schema.result' --- a/mysql-test/r/information_schema.result 2010-06-07 21:53:25 +0000 +++ b/mysql-test/r/information_schema.result 2010-10-08 19:30:16 +0000 @@ -323,7 +323,7 @@ a.ROUTINE_SCHEMA = b.SCHEMA_NAME; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE # ALL NULL NULL NULL NULL NULL -1 SIMPLE # ALL NULL NULL NULL NULL NULL Using where; Using join buffer +1 SIMPLE # ALL NULL NULL NULL NULL NULL Using where; Using join buffer (flat, BNL join) select a.ROUTINE_NAME, b.name from information_schema.ROUTINES a, mysql.proc b where a.ROUTINE_NAME = convert(b.name using utf8) AND a.ROUTINE_SCHEMA='test' order by 1; ROUTINE_NAME name @@ -1450,7 +1450,7 @@ where a.table_name='t1' and a.table_schema='test' and b.table_name=a.table_name; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE a ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL Using where; Skip_open_table; Scanned 0 databases -1 SIMPLE b ALL NULL NULL NULL NULL NULL Using where; Open_frm_only; Scanned all databases; Using join buffer +1 SIMPLE b ALL NULL NULL NULL NULL NULL Using where; Open_frm_only; Scanned all databases; Using join buffer (flat, BNL join) SELECT * FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = 'mysqltest'; CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH

=== modified file 'mysql-test/r/innodb_gis.result' --- a/mysql-test/r/innodb_gis.result 2009-02-10 13:27:35 +0000 +++ b/mysql-test/r/innodb_gis.result 2010-10-08 19:30:16 +0000 @@ -403,7 +403,7 @@ FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry;

=== modified file 'mysql-test/r/innodb_mysql.result' --- a/mysql-test/r/innodb_mysql.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/r/innodb_mysql.result 2010-10-08 19:30:16 +0000 @@ -187,7 +187,7 @@ explain select min(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2i ALL NULL NULL NULL NULL 1 -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) select min(7) from t2i join t1i; min(7) NULL @@ -203,7 +203,7 @@ explain select max(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2i ALL NULL NULL NULL NULL 1 -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) select max(7) from t2i join t1i; max(7) NULL

=== modified file 'mysql-test/r/join.result' --- a/mysql-test/r/join.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/join.result 2010-10-08 19:30:16 +0000 @@ -404,7 +404,7 @@ ORDER BY t1.b, t1.c; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 32 Using temporary; Using filesort -1 SIMPLE t2 ALL NULL NULL NULL NULL 16 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 16 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN t2.e FROM t1,t2 WHERE t2.d=1 AND t1.b=t2.e ORDER BY t1.b, t1.c; e @@ -1099,7 +1099,7 @@ 1 SIMPLE t4 ALL NULL NULL NULL NULL 0 Using where 1 SIMPLE t5 ALL NULL NULL NULL NULL 0 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 0 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join) SELECT * FROM t1 JOIN t2 ON t1.a = t2.a

=== modified file 'mysql-test/r/join_cache.result' --- a/mysql-test/r/join_cache.result 2010-10-04 01:45:46 +0000 +++ b/mysql-test/r/join_cache.result 2010-10-08 19:30:16 +0000 @@ -45,7 +45,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -74,8 +74,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer (flat, BNL join) +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -233,7 +233,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -262,8 +262,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer (flat, BNL join) +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (incremental, BNL join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -425,7 +425,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -454,8 +454,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer (flat, BNL join) +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -613,7 +613,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (flat, BNL join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -642,8 +642,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer -1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer +1 SIMPLE CountryLanguage ALL NULL NULL NULL NULL 984 Using where; Using join buffer (flat, BNL join) +1 SIMPLE City ALL NULL NULL NULL NULL 4079 Using where; Using join buffer (incremental, BNL join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -840,7 +840,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -869,8 +869,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BNLH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -1024,7 +1024,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -1052,7 +1052,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BNLH join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -1150,7 +1150,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -1179,8 +1179,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BNLH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer (incremental, BNLH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -1334,7 +1334,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -1362,7 +1362,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BNLH join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -1460,7 +1460,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -1489,8 +1489,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKA join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -1644,7 +1644,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -1672,7 +1672,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BKA join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -1767,7 +1767,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -1796,8 +1796,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKA join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (incremental, BKA join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -1951,7 +1951,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -1979,7 +1979,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BKA join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -2074,7 +2074,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -2103,8 +2103,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -2258,7 +2258,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -2286,7 +2286,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BKAH join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -2381,7 +2381,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -2410,8 +2410,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (incremental, BKAH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -2565,7 +2565,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -2593,7 +2593,7 @@ Country.Population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country ALL NULL NULL NULL NULL 239 Using where -1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer +1 SIMPLE CountryLanguage eq_ref PRIMARY PRIMARY 33 world.Country.Code,const 1 Using where; Using join buffer (flat, BKAH join) SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage) FROM Country LEFT JOIN CountryLanguage ON (CountryLanguage.Country=Country.Code AND Language='English') @@ -2692,7 +2692,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -2721,8 +2721,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BNLH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -2876,7 +2876,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -2906,7 +2906,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -2935,8 +2935,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BNLH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using where; Using join buffer (incremental, BNLH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -3090,7 +3090,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BNLH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -3120,7 +3120,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -3149,8 +3149,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKA join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -3304,7 +3304,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -3334,7 +3334,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -3363,8 +3363,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKA join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (incremental, BKA join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -3518,7 +3518,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKA join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -3548,7 +3548,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -3577,8 +3577,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -3732,7 +3732,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -3762,7 +3762,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 SIMPLE City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND Country.Name LIKE 'L%' AND City.Population > 100000; @@ -3791,8 +3791,8 @@ CountryLanguage.Percentage > 50; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE CountryLanguage ALL PRIMARY,Percentage NULL NULL NULL 984 Using where -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer -1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE City ref Country Country 3 world.Country.Code 18 Using index condition(BKA); Using where; Using join buffer (incremental, BKAH join) SELECT City.Name, Country.Name, CountryLanguage.Language FROM City,Country,CountryLanguage WHERE City.Country=Country.Code AND @@ -3946,7 +3946,7 @@ City.Population > 100000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country range PRIMARY,Name Name 52 NULL 10 Using index condition; Using MRR -1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer +1 PRIMARY City ref Population,Country Country 3 world.Country.Code 18 Using where; Using join buffer (flat, BKAH join) SELECT Name FROM City WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND City.Population > 100000; @@ -4031,7 +4031,7 @@ WHERE City.Country=Country.Code AND City.Population > 3000000; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE City range Population,Country Population 4 NULL # Using index condition; Using MRR -1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.City.Country # Using join buffer +1 SIMPLE Country eq_ref PRIMARY PRIMARY 3 world.City.Country # Using join buffer (flat, BKAH join) SELECT City.Name, Country.Name FROM City,Country WHERE City.Country=Country.Code AND City.Population > 3000000; Name Name @@ -4320,15 +4320,15 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t6 system PRIMARY NULL NULL NULL 1 1 SIMPLE t1 ref t1_affiliateid,t1_metaid t1_affiliateid 4 const 1 -1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where; Using join buffer -1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where; Using join buffer -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using join buffer +1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where; Using join buffer (flat, BKA join) +1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using join buffer (incremental, BKA join) 1 SIMPLE t7 ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using index -1 SIMPLE t3 ref t3_metaid,t3_formatid,t3_metaidformatid t3_metaid 4 test.t1.metaid 2 Using where; Using join buffer -1 SIMPLE t8 eq_ref PRIMARY PRIMARY 4 test.t7.artistid 1 Using join buffer -1 SIMPLE t9 index PRIMARY,t9_subgenreid,t9_metaid PRIMARY 8 NULL 2 Using where; Using index; Using join buffer -1 SIMPLE t10 eq_ref PRIMARY,t10_genreid PRIMARY 4 test.t9.subgenreid 1 Using join buffer -1 SIMPLE t11 eq_ref PRIMARY PRIMARY 4 test.t10.genreid 1 Using join buffer +1 SIMPLE t3 ref t3_metaid,t3_formatid,t3_metaidformatid t3_metaid 4 test.t1.metaid 2 Using where; Using join buffer (flat, BKA join) +1 SIMPLE t8 eq_ref PRIMARY PRIMARY 4 test.t7.artistid 1 Using join buffer (incremental, BKA join) +1 SIMPLE t9 index PRIMARY,t9_subgenreid,t9_metaid PRIMARY 8 NULL 2 Using where; Using index; Using join buffer (incremental, BNL join) +1 SIMPLE t10 eq_ref PRIMARY,t10_genreid PRIMARY 4 test.t9.subgenreid 1 Using join buffer (incremental, BKA join) +1 SIMPLE t11 eq_ref PRIMARY PRIMARY 4 test.t10.genreid 1 Using join buffer (incremental, BKA join) SELECT t1.uniquekey, t1.xml AS affiliateXml, t8.name AS artistName, t8.artistid, t11.name AS genreName, t11.genreid, t11.priority AS genrePriority, @@ -4409,7 +4409,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using where 1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a1 1 Using index -1 SIMPLE t3 ref idx idx 5 test.t2.b2 5 Using where; Using join buffer +1 SIMPLE t3 ref idx idx 5 test.t2.b2 5 Using where; Using join buffer (flat, BKA join) SELECT a1<>a2, a1, a2, b2, b3, c3, SUBSTR(filler1,1,1) AS s1, SUBSTR(filler2,1,1) AS s2 FROM t1,t2,t3 WHERE a1=a2 AND b2=b3 AND MOD(c3,10)>7; @@ -4441,7 +4441,7 @@ EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b >= 30; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL idx NULL NULL NULL 7 Using where -1 SIMPLE t2 ref idx idx 5 test.t1.a 2 Using join buffer +1 SIMPLE t2 ref idx idx 5 test.t1.a 2 Using join buffer (flat, BKAH join) SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b >= 30; a b a b 7 40 7 10 @@ -4474,7 +4474,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ref i_a i_a 4 test.t1.a 2 Using where; Not exists; Using join buffer +1 SIMPLE t2 ref i_a i_a 4 test.t1.a 2 Using where; Not exists; Using join buffer (flat, BKA join) SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t2.b IS NULL; a a b 3 NULL NULL @@ -4501,7 +4501,7 @@ from t1 left join t2 on t1.a=t2.a and t2.p % 2 = 1 group by t1.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using temporary; Using filesort -1 SIMPLE t2 ref i_a i_a 5 test.t1.a 2 Using where; Using join buffer +1 SIMPLE t2 ref i_a i_a 5 test.t1.a 2 Using where; Using join buffer (flat, BKA join) select t1.a, count(t2.p) as count from t1 left join t2 on t1.a=t2.a and t2.p % 2 = 1 group by t1.a; a count @@ -4553,7 +4553,7 @@ explain select * from t1 left join t2 on t1.a=t2.a where t2.c=102 or t2.c is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on t1.a=t2.a where t2.c=102 or t2.c is null; a b a c 3 30 3 102 @@ -4576,7 +4576,7 @@ explain select * from t1 left join t2 on (1=0) where a=40; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on (1=0) where a=40; a b 40 NULL @@ -4620,7 +4620,7 @@ EXPLAIN SELECT AVG(c) FROM t1,t2 WHERE t1.a=t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2050 Using where -1 SIMPLE t2 ref idx idx 5 test.t1.a 640 Using join buffer +1 SIMPLE t2 ref idx idx 5 test.t1.a 640 Using join buffer (flat, BKA join) SELECT AVG(c) FROM t1,t2 WHERE t1.a=t2.b; AVG(c) 5.0000 @@ -4660,8 +4660,8 @@ t1.b IS NULL AND t2.b IS NULL AND t3.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 16384 Using where -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (flat, BKAH join) SELECT COUNT(*) FROM t1,t2,t3 WHERE t1.a=t2.a AND t2.a=t3.a AND t1.b IS NULL AND t2.b IS NULL AND t3.b IS NULL; @@ -4726,7 +4726,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 2 Using index 1 SIMPLE t2 ref PRIMARY PRIMARY 8 test.t1.a 1 Using index -1 SIMPLE t3 ref idx idx 16 test.t1.a,test.t2.b 2 Using join buffer +1 SIMPLE t3 ref idx idx 16 test.t1.a,test.t2.b 2 Using join buffer (flat, BKA join) SELECT t1.a, t2.a, t3.a, t2.b, t3.b, t3.val FROM (t1,t2) LEFT JOIN t3 ON (t1.a=t3.a AND t2.b=t3.b) WHERE t1.a=t2.a; @@ -4751,7 +4751,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 2 Using index 1 SIMPLE t2 ref PRIMARY PRIMARY 8 test.t1.a 1 Using index -1 SIMPLE t3 ALL NULL NULL NULL NULL 24 Using where; Using join buffer +1 SIMPLE t3 ALL NULL NULL NULL NULL 24 Using where; Using join buffer (flat, BNL join) SELECT t1.a, t2.a, t3.a, t2.b, t3.b, t3.val FROM (t1,t2) LEFT JOIN t3 ON (t1.a=t3.a AND t2.b=t3.b) WHERE t1.a=t2.a; @@ -4797,7 +4797,7 @@ where t1.f1=t2.f1 and t2.f2 between t1.f1 and t2.f2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using join buffer +1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using join buffer (flat, BKA join) set join_cache_level=6; select t2.f1, t2.f2, t2.f3 from t1,t2 where t1.f1=t2.f1 and t2.f2 between t1.f1 and t1.f2 and t2.f2 + 1 >= t1.f1 + 1; @@ -4810,7 +4810,7 @@ where t1.f1=t2.f1 and t2.f2 between t1.f1 and t2.f2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using join buffer +1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using join buffer (flat, BKA join) set join_cache_level=7; select t2.f1, t2.f2, t2.f3 from t1,t2 where t1.f1=t2.f1 and t2.f2 between t1.f1 and t1.f2 and t2.f2 + 1 >= t1.f1 + 1; @@ -4823,7 +4823,7 @@ where t1.f1=t2.f1 and t2.f2 between t1.f1 and t2.f2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using where; Using join buffer (flat, BKAH join) set join_cache_level=8; select t2.f1, t2.f2, t2.f3 from t1,t2 where t1.f1=t2.f1 and t2.f2 between t1.f1 and t1.f2 and t2.f2 + 1 >= t1.f1 + 1; @@ -4836,7 +4836,7 @@ where t1.f1=t2.f1 and t2.f2 between t1.f1 and t2.f2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE t2 ref f1 f1 4 test.t1.f1 3 Using index condition(BKA); Using where; Using join buffer (flat, BKAH join) drop table t1,t2; set join_cache_level=default; # @@ -4855,7 +4855,7 @@ where t1.d=3 group by t1.id1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref idx1 idx1 5 const 4 Using where; Using index; Using temporary; Using filesort -1 SIMPLE t2 ref idx2 idx2 5 test.t1.id1 2 Using join buffer +1 SIMPLE t2 ref idx2 idx2 5 test.t1.id1 2 Using join buffer (flat, BKA join) select t1.id1, sum(t2.id2) from t1 join t2 on t1.id1=t2.id1 where t1.d=3 group by t1.id1; id1 sum(t2.id2) @@ -4867,7 +4867,7 @@ where t1.d=3 and t2.id2 > 200 order by t1.id1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref idx1 idx1 5 const 4 Using where; Using index; Using temporary; Using filesort -1 SIMPLE t2 ref idx2 idx2 5 test.t1.id1 2 Using where; Using join buffer +1 SIMPLE t2 ref idx2 idx2 5 test.t1.id1 2 Using where; Using join buffer (flat, BKA join) select t1.id1 from t1 join t2 on t1.id1=t2.id1 where t1.d=3 and t2.id2 > 200 order by t1.id1; id1 @@ -4924,9 +4924,9 @@ where t2.b=t1.b and t3.d=t1.d and t4.c=t1.c; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using where -1 SIMPLE t2 ref idx idx 5 test.t1.b 1 Using join buffer -1 SIMPLE t3 ref idx idx 5 test.t1.d 1 Using join buffer -1 SIMPLE t4 ref idx idx 5 test.t1.c 1 Using join buffer +1 SIMPLE t2 ref idx idx 5 test.t1.b 1 Using join buffer (flat, BKA join) +1 SIMPLE t3 ref idx idx 5 test.t1.d 1 Using join buffer (incremental, BKA join) +1 SIMPLE t4 ref idx idx 5 test.t1.c 1 Using join buffer (incremental, BKA join) select t1.a, t1.b, t1.c, t1.d, t2.e, t3.f, t4.g from t1,t2,t3,t4 where t2.b=t1.b and t3.d=t1.d and t4.c=t1.c; a b c d e f g @@ -4975,10 +4975,10 @@ t5.enum2='Active' AND t3.id4=t2.id4 AND t2.id3=t1.id3 AND t3.text1<'D'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 349 Using where -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 8 test.t1.id3 1 Using where; Using join buffer -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.id4 1 Using where; Using join buffer -1 SIMPLE t4 eq_ref PRIMARY PRIMARY 8 test.t1.id2 1 Using join buffer -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 16 test.t1.id1,test.t1.id2 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 8 test.t1.id3 1 Using where; Using join buffer (flat, BKAH join) +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.id4 1 Using where; Using join buffer (incremental, BKAH join) +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 8 test.t1.id2 1 Using join buffer (incremental, BKAH join) +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 16 test.t1.id1,test.t1.id2 1 Using where; Using join buffer (incremental, BKAH join) SELECT STRAIGHT_JOIN t1.id1, t1.num3, t3.text1, t3.id4, t2.id3, t4.dummy FROM t1 JOIN t2 JOIN t3 JOIN t4 JOIN t5 WHERE t1.id1=t5.id1 AND t1.id2=t5.id2 and t4.id2=t1.id2 AND @@ -5075,7 +5075,7 @@ ORDER BY t1.int_key; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index NULL int_key 4 NULL 14 Using index -1 SIMPLE t2 index NULL int_key 4 NULL 2 Using index; Using join buffer +1 SIMPLE t2 index NULL int_key 4 NULL 2 Using index; Using join buffer (flat, BNL join)

DROP TABLE t1,t2; SET join_cache_level=default; @@ -5109,7 +5109,7 @@ ORDER BY t2.v; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where -1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using index; Using join buffer +1 SIMPLE t1 index NULL PRIMARY 4 NULL 4 Using index; Using join buffer (flat, BNL join)

DROP TABLE t1,t2; # @@ -5143,8 +5143,8 @@ explain select t1.* from t1,t2,t3; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) select t1.* from t1,t2,t3; a b 1 1 @@ -5159,8 +5159,8 @@ explain select t1.* from t1,t2,t3; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join) select t1.* from t1,t2,t3; a b 1 1 @@ -5190,8 +5190,8 @@ SELECT t3.a FROM t1,t2,t3 WHERE t1.a = t3.a AND t1.b = t3.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 5 Using join buffer -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join) +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (incremental, BKA join) SELECT t3.a FROM t1,t2,t3 WHERE t1.a = t3.a AND t1.b = t3.b; a 27 @@ -5237,7 +5237,7 @@ ON t3.carrier = t1.carrier; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.carrier 1 Using where 1 SIMPLE t4 ref carrier_id carrier_id 5 test.t3.id 2 Using index SET join_cache_level=default; @@ -5253,7 +5253,7 @@ explain SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer (flat, BKA join) SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; a NULL @@ -5262,7 +5262,7 @@ explain SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer (flat, BKAH join) SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; a NULL @@ -5273,7 +5273,7 @@ explain SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref b b 5 test.t1.b 2 Using where; Using join buffer (flat, BKA join) SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; a NULL @@ -5287,7 +5287,7 @@ explain SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ref b b 103 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref b b 103 test.t1.b 2 Using where; Using join buffer (flat, BKA join) SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; a NULL @@ -5296,7 +5296,7 @@ explain SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ref b b 103 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref b b 103 test.t1.b 2 Using where; Using join buffer (flat, BKAH join) SELECT t2.a FROM t1 LEFT JOIN t2 ON t2.b = t1.b; a NULL @@ -5322,7 +5322,7 @@ WHERE s.pk AND s.a >= t.pk AND s.b = t.c; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t ALL NULL NULL NULL NULL 2 Using where -1 SIMPLE s ref idx idx 19 test.t.c 1 Using index condition(BKA); Using where; Using join buffer +1 SIMPLE s ref idx idx 19 test.t.c 1 Using index condition(BKA); Using where; Using join buffer (flat, BKAH join) SELECT t.a FROM t1 t, t1 s FORCE INDEX(idx) WHERE s.pk AND s.a >= t.pk AND s.b = t.c; a @@ -5345,8 +5345,8 @@ WHERE t1.a OR t3.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 -1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (incremental, BNL join) SELECT t1.a FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON t2.a) ON 0 WHERE t1.a OR t3.a; @@ -5359,9 +5359,9 @@ WHERE t1.a OR t4.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 -1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 0 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (incremental, BNL join) SELECT t1.a FROM t1 LEFT JOIN (t2 LEFT JOIN (t3 LEFT JOIN t4 ON 1) ON t2.a) ON 0 WHERE t1.a OR t4.a;

=== modified file 'mysql-test/r/join_nested.result' --- a/mysql-test/r/join_nested.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/join_nested.result 2010-10-08 19:30:16 +0000 @@ -229,7 +229,7 @@ ON t7.b=t8.b AND t6.b < 10; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1003 select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t7`.`b` = `test`.`t8`.`b`) and (`test`.`t6`.`b` < 10))) where 1 @@ -544,7 +544,7 @@ (t2.a >= 4 OR t2.c IS NULL); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -639,7 +639,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -647,7 +647,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t9.a,t9.b @@ -836,7 +836,7 @@ WHERE t1.a <= 2; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: @@ -850,7 +850,7 @@ ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 2 100.00 Using where 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: @@ -906,7 +906,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -914,7 +914,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t4(b); @@ -956,7 +956,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where @@ -964,7 +964,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t8(b); @@ -1005,7 +1005,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where @@ -1013,7 +1013,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on((((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t1(b); @@ -1063,7 +1063,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on((((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,

=== modified file 'mysql-test/r/join_nested_jcl6.result' --- a/mysql-test/r/join_nested_jcl6.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/join_nested_jcl6.result 2010-10-08 19:30:16 +0000 @@ -80,8 +80,8 @@ WHERE t3.a=1 OR t3.c IS NULL; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((`test`.`t4`.`b` = `test`.`t2`.`b`)) where ((`test`.`t3`.`a` = 1) or isnull(`test`.`t3`.`c`)) SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b @@ -156,9 +156,9 @@ WHERE t3.a>1 OR t3.c IS NULL; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b` from `test`.`t2` left join (`test`.`t3` join `test`.`t4` join `test`.`t5`) on((`test`.`t4`.`b` = `test`.`t2`.`b`)) where ((`test`.`t3`.`a` > 1) or isnull(`test`.`t3`.`c`)) SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b @@ -186,9 +186,9 @@ (t5.a<3 OR t5.c IS NULL); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b` from `test`.`t2` left join (`test`.`t3` join `test`.`t4` join `test`.`t5`) on((`test`.`t4`.`b` = `test`.`t2`.`b`)) where (((`test`.`t3`.`a` > 1) or isnull(`test`.`t3`.`c`)) and ((`test`.`t5`.`a` < 3) or isnull(`test`.`t5`.`c`))) SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b @@ -236,8 +236,8 @@ ON t7.b=t8.b AND t6.b < 10; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t7`.`b` = `test`.`t8`.`b`) and (`test`.`t6`.`b` < 10))) where 1 SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b @@ -551,14 +551,14 @@ (t2.a >= 4 OR t2.c IS NULL); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) where ((`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`))) SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, @@ -646,15 +646,15 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t9.a,t9.b @@ -843,9 +843,9 @@ WHERE t1.a <= 2; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t1` join `test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) where (`test`.`t1`.`a` <= 2) CREATE INDEX idx_b ON t2(b); @@ -857,9 +857,9 @@ ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer -1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 2 100.00 Using where; Using join buffer -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) +1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on((((`test`.`t3`.`a` = 1) and (`test`.`t3`.`b` = `test`.`t2`.`b`) and (`test`.`t2`.`b` = `test`.`t4`.`b`)) and (`test`.`t3`.`b` is not null))) where 1 SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b @@ -913,15 +913,15 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t4(b); @@ -963,15 +963,15 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t8(b); @@ -1012,15 +1012,15 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join buffer -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on((((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t1(b); @@ -1062,15 +1062,15 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ref idx_a idx_a 5 const 1 100.00 Using where -1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 2 100.00 Using join buffer -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer -1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer -1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join buffer -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 2 100.00 Using join buffer (flat, BKA join) +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (incremental, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on((((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)) and (`test`.`t5`.`b` is not null)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, @@ -1324,8 +1324,8 @@ EXPLAIN SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON c21=c31) ON c11=c21; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where; Using join buffer (incremental, BNL join) DROP TABLE t1,t2,t3; CREATE TABLE t1 (goods int(12) NOT NULL, price varchar(128) NOT NULL); INSERT INTO t1 VALUES (23, 2340), (26, 9900); @@ -1452,27 +1452,27 @@ t2 left join (t3 join t5 on t5.a=t3.b) on t3.a=t2.b where t4.a<=>t3.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL X -1 SIMPLE t3 ref a a 5 test.t2.b X Using where; Using join buffer -1 SIMPLE t5 ref a a 5 test.t3.b X Using join buffer -1 SIMPLE t4 ref a a 5 test.t3.b X Using index condition(BKA); Using join buffer +1 SIMPLE t3 ref a a 5 test.t2.b X Using where; Using join buffer (flat, BKA join) +1 SIMPLE t5 ref a a 5 test.t3.b X Using join buffer (incremental, BKA join) +1 SIMPLE t4 ref a a 5 test.t3.b X Using index condition(BKA); Using join buffer (incremental, BKA join) explain select * from (t4 join t6 on t6.a=t4.b) right join t3 on t4.a=t3.b join t2 left join (t5 join t7 on t7.a=t5.b) on t5.a=t2.b where t3.a<=>t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL X -1 SIMPLE t3 ref a a 5 test.t2.b X Using index condition(BKA); Using join buffer -1 SIMPLE t4 ref a a 5 test.t3.b X Using where; Using join buffer -1 SIMPLE t6 ref a a 5 test.t4.b X Using join buffer -1 SIMPLE t5 ref a a 5 test.t2.b X Using where; Using join buffer -1 SIMPLE t7 ref a a 5 test.t5.b X Using join buffer +1 SIMPLE t3 ref a a 5 test.t2.b X Using index condition(BKA); Using join buffer (flat, BKA join) +1 SIMPLE t4 ref a a 5 test.t3.b X Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t6 ref a a 5 test.t4.b X Using join buffer (incremental, BKA join) +1 SIMPLE t5 ref a a 5 test.t2.b X Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t7 ref a a 5 test.t5.b X Using join buffer (incremental, BKA join) explain select * from t2 left join (t3 left join (t4 join t6 on t6.a=t4.b) on t4.a=t3.b join t5 on t5.a=t3.b) on t3.a=t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL X -1 SIMPLE t3 ref a a 5 test.t2.b X Using where; Using join buffer -1 SIMPLE t4 ref a a 5 test.t3.b X Using where; Using join buffer -1 SIMPLE t6 ref a a 5 test.t4.b X Using join buffer -1 SIMPLE t5 ref a a 5 test.t3.b X Using join buffer +1 SIMPLE t3 ref a a 5 test.t2.b X Using where; Using join buffer (flat, BKA join) +1 SIMPLE t4 ref a a 5 test.t3.b X Using where; Using join buffer (incremental, BKA join) +1 SIMPLE t6 ref a a 5 test.t4.b X Using join buffer (incremental, BKA join) +1 SIMPLE t5 ref a a 5 test.t3.b X Using join buffer (incremental, BKA join) drop table t0, t1, t2, t3, t4, t5, t6, t7; create table t1 (a int); insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -1485,8 +1485,8 @@ on (t1.a = t2.a); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 10 -1 SIMPLE t2 ref a a 5 test.t1.a 1 Using where; Using join buffer -1 SIMPLE t3 ref a a 5 test.t2.a 1 Using where; Using join buffer +1 SIMPLE t2 ref a a 5 test.t1.a 1 Using where; Using join buffer (flat, BKA join) +1 SIMPLE t3 ref a a 5 test.t2.a 1 Using where; Using join buffer (incremental, BKA join) drop table t1, t2, t3; CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, type varchar(10)); CREATE TABLE t2 (pid int NOT NULL PRIMARY KEY, type varchar(10)); @@ -1737,7 +1737,7 @@ ON t4.carrier = t1.carrier; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index package_id package_id 5 NULL 45 Using where; Using index -1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.package_id 1 Using join buffer +1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.package_id 1 Using join buffer (flat, BKA join) 1 SIMPLE t4 eq_ref PRIMARY,id PRIMARY 2 test.t1.carrier 1 Using where 1 SIMPLE t5 ref carrier_id carrier_id 5 test.t4.id 22 Using index 1 SIMPLE t3 ref package_id package_id 5 test.t1.id 1 Using where; Using index @@ -1773,9 +1773,9 @@ (t8.a > 0 OR t8.c IS NULL); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 3 -1 SIMPLE t7 ref b_i b_i 5 test.t5.b 2 Using where; Using join buffer -1 SIMPLE t6 ALL b_i NULL NULL NULL 3 Using where; Using join buffer -1 SIMPLE t8 ref b_i b_i 5 test.t7.b 2 Using where; Using join buffer +1 SIMPLE t7 ref b_i b_i 5 test.t5.b 2 Using where; Using join buffer (flat, BKA join) +1 SIMPLE t6 ALL b_i NULL NULL NULL 3 Using where; Using join buffer (incremental, BNL join) +1 SIMPLE t8 ref b_i b_i 5 test.t7.b 2 Using where; Using join buffer (incremental, BKA join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN @@ -1808,9 +1808,9 @@ ON (t5.b=t8.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 2 -1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer -1 SIMPLE t7 const PRIMARY PRIMARY 4 const 1 Using join buffer -1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) +1 SIMPLE t7 const PRIMARY PRIMARY 4 const 1 Using join buffer (incremental, BKA join) +1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN (t6 LEFT JOIN t7 ON t7.a=1, t8) @@ -1825,9 +1825,9 @@ ON (t5.b=t8.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 2 -1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer -1 SIMPLE t7 ref b_i b_i 5 const 0 Using join buffer -1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) +1 SIMPLE t7 ref b_i b_i 5 const 0 Using join buffer (incremental, BKA join) +1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN (t6 LEFT JOIN t7 ON t7.b=2, t8) @@ -1842,9 +1842,9 @@ ON (t5.b=t8.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 2 -1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer -1 SIMPLE t7 const PRIMARY PRIMARY 4 const 1 Using join buffer +1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join) +1 SIMPLE t7 const PRIMARY PRIMARY 4 const 1 Using join buffer (incremental, BKA join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN (t8, t6 LEFT JOIN t7 ON t7.a=1)

=== modified file 'mysql-test/r/join_outer_jcl6.result' --- a/mysql-test/r/join_outer_jcl6.result 2010-10-06 20:27:12 +0000 +++ b/mysql-test/r/join_outer_jcl6.result 2010-10-08 19:30:16 +0000 @@ -102,7 +102,7 @@ explain select t1.*,t2.* from t1 left join t2 on t1.a=t2.a where isnull(t2.a)=1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 7 -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 8 test.t1.a 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 8 test.t1.a 1 Using where; Using join buffer (flat, BKA join) select t1.*,t2.*,t3.a from t1 left join t2 on (t1.a=t2.a) left join t1 as t3 on (t2.a=t3.a); grp a c id a c d a 1 1 a 1 1 a 1 1 @@ -319,11 +319,11 @@ explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.id is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists; Using join buffer (flat, BNL join) explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.name is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) select count(*) from t1 left join t2 on (t1.id = t2.owner); count(*) 4 @@ -339,11 +339,11 @@ explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.id is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Not exists; Using join buffer (flat, BNL join) explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.name is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) select count(*) from t2 right join t1 on (t1.id = t2.owner); count(*) 4 @@ -695,8 +695,8 @@ explain select * from t1 left join t2 on b1 = a1 left join t3 on c1 = a1 and b1 is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (incremental, BNL join) drop table t1, t2, t3; create table t1 ( a int(11), @@ -745,13 +745,13 @@ order by m.match_id desc; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort -1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer +1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer (flat, BKA join) explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from (t2 s left join t1 m on m.match_id = 1) order by UUX desc; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort -1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer +1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer (flat, BKA join) select s.*, '*', m.*, (s.match_1_h - m.home) UUX from (t2 s left join t1 m on m.match_id = 1) order by UUX desc; @@ -771,7 +771,7 @@ order by UUX desc; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE s ALL NULL NULL NULL NULL 10 Using temporary; Using filesort -1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer +1 SIMPLE m const match_id,match_id_2 match_id 1 const 1 Using join buffer (flat, BKA join) select s.*, '*', m.*, (s.match_1_h - m.home) UUX from t2 s straight_join t1 m where m.match_id = 1 order by UUX desc; @@ -1134,15 +1134,15 @@ EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t1.a = t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where -1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer +1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer (flat, BKA join) EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a IN(t2.a, t2.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where -1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer +1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer (flat, BKA join) EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a > IF(t1.a = t2.b-2, t2.b, t2.b-1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where -1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer +1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 Using join buffer (flat, BKA join) DROP TABLE t1,t2; DROP VIEW IF EXISTS v1,v2; DROP TABLE IF EXISTS t1,t2; @@ -1231,7 +1231,7 @@ SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ref idx idx 4 test.t1.id 2 Using where; Not exists; Using join buffer +1 SIMPLE t2 ref idx idx 4 test.t1.id 2 Using where; Not exists; Using join buffer (flat, BKA join) flush status; SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL; id a

=== modified file 'mysql-test/r/key_diff.result' --- a/mysql-test/r/key_diff.result 2007-05-29 12:58:18 +0000 +++ b/mysql-test/r/key_diff.result 2010-10-08 19:30:16 +0000 @@ -36,7 +36,7 @@ explain select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL a NULL NULL NULL 5 -1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B order by binary t1.a,t2.a; a b a b A B a a

=== modified file 'mysql-test/r/myisam.result' --- a/mysql-test/r/myisam.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/myisam.result 2010-10-08 19:30:16 +0000 @@ -346,11 +346,11 @@ explain select * from t1,t2 where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL a NULL NULL NULL 2 -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) explain select * from t1,t2 force index(a) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL a NULL NULL NULL 2 -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL a NULL NULL NULL 2 @@ -362,7 +362,7 @@ explain select * from t1,t2 force index(c) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) explain select * from t1 where a=0 or a=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where

=== modified file 'mysql-test/r/order_by.result' --- a/mysql-test/r/order_by.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/order_by.result 2010-10-08 19:30:16 +0000 @@ -1608,18 +1608,18 @@ SELECT * FROM t1 FORCE INDEX FOR ORDER BY (a), t2 WHERE t1.a < 2 ORDER BY t1.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 5 NULL 2 Using index condition; Using MRR; Using temporary; Using filesort -1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) # should have "using filesort" EXPLAIN SELECT * FROM t1 USE INDEX FOR ORDER BY (a), t2 WHERE t1.a < 2 ORDER BY t1.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 5 NULL 2 Using index condition; Using MRR; Using temporary; Using filesort -1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) # should have "using filesort" EXPLAIN SELECT * FROM t1 FORCE INDEX FOR JOIN (a), t2 WHERE t1.a < 2 ORDER BY t1.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 5 NULL 2 Using index condition; Using MRR; Using temporary; Using filesort -1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) DROP TABLE t1, t2; End of 5.1 tests

=== modified file 'mysql-test/r/pool_of_threads.result' --- a/mysql-test/r/pool_of_threads.result 2009-12-15 07:16:46 +0000 +++ b/mysql-test/r/pool_of_threads.result 2010-10-08 19:30:16 +0000 @@ -1429,7 +1429,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008

=== modified file 'mysql-test/r/range.result' --- a/mysql-test/r/range.result 2010-03-20 12:01:47 +0000 +++ b/mysql-test/r/range.result 2010-10-08 19:30:16 +0000 @@ -221,27 +221,27 @@ explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer +1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (flat, BNL join) explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref x x 5 const 1 Using index @@ -256,12 +256,12 @@ explain select * from t1, t2 where (t1.key1

=== modified file 'mysql-test/r/row.result' --- a/mysql-test/r/row.result 2010-04-16 11:42:34 +0000 +++ b/mysql-test/r/row.result 2010-10-08 19:30:16 +0000 @@ -377,7 +377,7 @@ EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 index NULL PRIMARY 8 NULL 6 100.00 Using index -1 SIMPLE t2 index NULL PRIMARY 12 NULL 7 100.00 Using where; Using index; Using join buffer +1 SIMPLE t2 index NULL PRIMARY 12 NULL 7 100.00 Using where; Using index; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where (((`test`.`t1`.`a` - 1) = (`test`.`t2`.`a` - 1)) and (`test`.`t1`.`b` = (`test`.`t2`.`b` + 1))) SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1);

=== modified file 'mysql-test/r/select.result' --- a/mysql-test/r/select.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/select.result 2010-10-08 19:30:16 +0000 @@ -1431,7 +1431,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008 @@ -2363,7 +2363,7 @@ explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d in (4); a b c d 3 2 3 4 @@ -2371,7 +2371,7 @@ explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d = 4; a b c d 3 2 3 4 @@ -2717,7 +2717,7 @@ t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort -1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer +1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; CREATE TABLE t1 (a int, INDEX idx(a)); @@ -2738,7 +2738,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2748,7 +2748,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2910,11 +2910,11 @@ EXPLAIN SELECT t1.a FROM t1 STRAIGHT_JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) EXPLAIN SELECT t1.a FROM t1 INNER JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 -1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) DROP TABLE t1,t2; select x'10' + 0, X'10' + 0, b'10' + 0, B'10' + 0; x'10' + 0 X'10' + 0 b'10' + 0 B'10' + 0

=== modified file 'mysql-test/r/select_jcl6.result' --- a/mysql-test/r/select_jcl6.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/select_jcl6.result 2010-10-08 19:30:16 +0000 @@ -611,15 +611,15 @@ explain select * from t3 as t1,t3 where t1.period=t3.period order by t3.period; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL period NULL NULL NULL 41810 Using temporary; Using filesort -1 SIMPLE t3 ref period period 4 test.t1.period 4181 Using join buffer +1 SIMPLE t3 ref period period 4 test.t1.period 4181 Using join buffer (flat, BKA join) explain select * from t3 as t1,t3 where t1.period=t3.period order by t3.period limit 10; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t3 ALL period NULL NULL NULL 41810 Using temporary; Using filesort -1 SIMPLE t1 ref period period 4 test.t3.period 4181 Using join buffer +1 SIMPLE t1 ref period period 4 test.t3.period 4181 Using join buffer (flat, BKA join) explain select * from t3 as t1,t3 where t1.period=t3.period order by t1.period limit 10; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL period NULL NULL NULL 41810 Using temporary; Using filesort -1 SIMPLE t3 ref period period 4 test.t1.period 4181 Using join buffer +1 SIMPLE t3 ref period period 4 test.t1.period 4181 Using join buffer (flat, BKA join) select period from t1; period 9410 @@ -1366,11 +1366,11 @@ explain select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 1200 -1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using where; Not exists; Using join buffer +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using where; Not exists; Using join buffer (flat, BKA join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 12 -1 SIMPLE t2 ALL NULL NULL NULL NULL 1200 Using where; Not exists; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1200 Using where; Not exists; Using join buffer (flat, BNL join) select companynr,companyname from t2 left join t4 using (companynr) where companynr is null; companynr companyname select count(*) from t2 left join t4 using (companynr) where companynr is not null; @@ -1386,51 +1386,51 @@ explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where -1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer (flat, BKA join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr < 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where -1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer (flat, BKA join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 and t4.companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where -1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using join buffer (flat, BKA join) explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 and companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 12 -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr < 0 or t4.companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select t2.companynr,companyname from t4 left join t2 using (companynr) where ifnull(t2.companynr,1)>0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 12 -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr is null; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0 or companynr > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) explain select companynr,companyname from t4 left join t2 using (companynr) where ifnull(companynr,1)>0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; companynr companynr 37 36 @@ -1438,7 +1438,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008 @@ -2337,7 +2337,7 @@ 1 SIMPLE t3 system NULL NULL NULL NULL 0 const row not found 1 SIMPLE t4 const id4 NULL NULL NULL 1 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3 left join t4 on id3 = id4 where id2 = 1 or id4 = 1; id1 id2 id3 id4 id44 @@ -2370,7 +2370,7 @@ explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d in (4); a b c d 3 2 3 4 @@ -2378,7 +2378,7 @@ explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d = 4; a b c d 3 2 3 4 @@ -2724,7 +2724,7 @@ t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort -1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer +1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; CREATE TABLE t1 (a int, INDEX idx(a)); @@ -2745,7 +2745,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2755,7 +2755,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2917,11 +2917,11 @@ EXPLAIN SELECT t1.a FROM t1 STRAIGHT_JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) EXPLAIN SELECT t1.a FROM t1 INNER JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 -1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) DROP TABLE t1,t2; select x'10' + 0, X'10' + 0, b'10' + 0, B'10' + 0; x'10' + 0 X'10' + 0 b'10' + 0 B'10' + 0 @@ -3461,7 +3461,7 @@ and B.a=5 and B.b=A.e and (B.b =1 or B.b = 3 or B.b=5); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE A range PRIMARY PRIMARY 12 NULL 4 Using index condition; Using where; Using MRR -1 SIMPLE B ref PRIMARY PRIMARY 8 const,test.A.e 10 Using join buffer +1 SIMPLE B ref PRIMARY PRIMARY 8 const,test.A.e 10 Using join buffer (flat, BKA join) drop table t1, t2; CREATE TABLE t1 (a int PRIMARY KEY, b int, INDEX(b)); INSERT INTO t1 VALUES (1, 3), (9,4), (7,5), (4,5), (6,2), @@ -3475,12 +3475,12 @@ SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range PRIMARY,b b 5 NULL 3 Using index condition; Using MRR -1 SIMPLE t2 ref c c 5 test.t1.a 2 Using join buffer +1 SIMPLE t2 ref c c 5 test.t1.a 2 Using join buffer (flat, BKA join) EXPLAIN SELECT a, c, d, f FROM t1,t2 WHERE a=c AND b BETWEEN 4 AND 6 AND a > 0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range PRIMARY,b b 5 NULL 3 Using index condition; Using where; Using MRR -1 SIMPLE t2 ref c c 5 test.t1.a 2 Using join buffer +1 SIMPLE t2 ref c c 5 test.t1.a 2 Using join buffer (flat, BKA join) DROP TABLE t1, t2; create table t1 ( a int unsigned not null auto_increment primary key, @@ -3570,19 +3570,19 @@ WHERE t2.fk < 'c' AND t2.pk=t1.fk; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range PRIMARY PRIMARY 12 NULL 3 Using index condition; Using where; Using MRR -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer (flat, BKA join) EXPLAIN SELECT t2.* FROM t1 JOIN t2 ON t2.fk=t1.pk WHERE t2.fk BETWEEN 'a' AND 'b' AND t2.pk=t1.fk; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range PRIMARY PRIMARY 12 NULL 2 Using index condition; Using where; Using MRR -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer (flat, BKA join) EXPLAIN SELECT t2.* FROM t1 JOIN t2 ON t2.fk=t1.pk WHERE t2.fk IN ('a','b') AND t2.pk=t1.fk; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range PRIMARY PRIMARY 12 NULL 2 Using index condition; Using where; Using MRR -1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 18 test.t1.fk 1 Using where; Using join buffer (flat, BKA join) DROP TABLE t1,t2; CREATE TABLE t1 (a int, b varchar(20) NOT NULL, PRIMARY KEY(a)); CREATE TABLE t2 (a int, b varchar(20) NOT NULL, @@ -3616,7 +3616,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 1 SIMPLE t2 range si si 5 NULL 4 Using index condition; Using where; Using MRR -1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer (flat, BKA join) EXPLAIN SELECT t3.a FROM t1,t2,t3 WHERE t1.id = 8 AND t2.i BETWEEN t1.b AND t1.e AND @@ -3624,7 +3624,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 1 SIMPLE t2 range si,ai si 5 NULL 4 Using index condition; Using where; Using MRR -1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer (flat, BKA join) EXPLAIN SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3 WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND @@ -3632,7 +3632,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 1 SIMPLE t2 range si si 5 NULL 2 Using index condition; Using where; Using MRR -1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer (flat, BKA join) EXPLAIN SELECT t3.a FROM t1,t2,t3 WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND @@ -3640,7 +3640,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 1 SIMPLE t2 range si,ai si 5 NULL 2 Using index condition; Using where; Using MRR -1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where; Using join buffer (flat, BKA join) DROP TABLE t1,t2,t3; CREATE TABLE t1 ( f1 int primary key, f2 int, f3 int, f4 int, f5 int, f6 int, checked_out int); CREATE TABLE t2 ( f11 int PRIMARY KEY ); @@ -4403,7 +4403,7 @@ EXPLAIN SELECT 1 FROM t1 NATURAL LEFT JOIN t1 AS t2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL a NULL NULL NULL 2 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) SELECT 1 FROM t1 NATURAL LEFT JOIN t1 AS t2; 1 1 @@ -4413,7 +4413,7 @@ EXPLAIN SELECT 1 FROM t1 NATURAL LEFT JOIN t1 AS t2 FORCE INDEX(a); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 -1 SIMPLE t2 ALL a NULL NULL NULL 2 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) SELECT 1 FROM t1 NATURAL LEFT JOIN t1 AS t2 FORCE INDEX(a); 1 1

=== modified file 'mysql-test/r/select_pkeycache.result' --- a/mysql-test/r/select_pkeycache.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/select_pkeycache.result 2010-10-08 19:30:16 +0000 @@ -1431,7 +1431,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008 @@ -2363,7 +2363,7 @@ explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d in (4); a b c d 3 2 3 4 @@ -2371,7 +2371,7 @@ explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref c,d d 5 const 2 -1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on a=c where d = 4; a b c d 3 2 3 4 @@ -2717,7 +2717,7 @@ t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort -1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer +1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; CREATE TABLE t1 (a int, INDEX idx(a)); @@ -2738,7 +2738,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2748,7 +2748,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2910,11 +2910,11 @@ EXPLAIN SELECT t1.a FROM t1 STRAIGHT_JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) EXPLAIN SELECT t1.a FROM t1 INNER JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 -1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) DROP TABLE t1,t2; select x'10' + 0, X'10' + 0, b'10' + 0, B'10' + 0; x'10' + 0 X'10' + 0 b'10' + 0 B'10' + 0

=== modified file 'mysql-test/r/ssl.result' --- a/mysql-test/r/ssl.result 2009-12-15 07:16:46 +0000 +++ b/mysql-test/r/ssl.result 2010-10-08 19:30:16 +0000 @@ -1432,7 +1432,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008

=== modified file 'mysql-test/r/ssl_compress.result' --- a/mysql-test/r/ssl_compress.result 2009-12-15 07:16:46 +0000 +++ b/mysql-test/r/ssl_compress.result 2010-10-08 19:30:16 +0000 @@ -1435,7 +1435,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008

=== modified file 'mysql-test/r/subselect.result' --- a/mysql-test/r/subselect.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect.result 2010-10-08 19:30:16 +0000 @@ -906,7 +906,7 @@ 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 index -2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +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`,(`test`.`t1`.`a`,<exists>(select 1 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 (`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; @@ -1296,7 +1296,7 @@ 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 +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); @@ -1306,7 +1306,7 @@ 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 +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); @@ -1316,7 +1316,7 @@ 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 +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`))

=== modified file 'mysql-test/r/subselect3.result' --- a/mysql-test/r/subselect3.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect3.result 2010-10-08 19:30:16 +0000 @@ -261,7 +261,7 @@ 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 ref_or_null a a 5 func 2 100.00 Using where; Full scan on NULL key -2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer +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`,((`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((`test`.`t1`.`a`)) and trigcond((`test`.`t1`.`b`))))) AS `Z` from `test`.`t2` @@ -1024,10 +1024,10 @@ t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 8 Using temporary; Using filesort -1 PRIMARY t21 ALL NULL NULL NULL NULL 26 Using where; Using join buffer -1 PRIMARY t22 ALL NULL NULL NULL NULL 26 Using where; Using join buffer +1 PRIMARY t21 ALL NULL NULL NULL NULL 26 Using where; Using join buffer (flat, BNL join) +1 PRIMARY t22 ALL NULL NULL NULL NULL 26 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY t11 ALL NULL NULL NULL NULL 8 Using where -2 SUBQUERY t12 ALL NULL NULL NULL NULL 8 Using where; Using join buffer +2 SUBQUERY t12 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) select t21.* from t21,t22 where t21.a = t22.a and t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a; a b c @@ -1058,7 +1058,7 @@ explain select * from t1 where 2 in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 11 Using where; Start temporary; End temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) select * from t1 where 2 in (select a from t0); a 0 @@ -1085,7 +1085,7 @@ explain select * from t1 where 2 in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 11 Using where; FirstMatch -1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) select * from t1 where 2 in (select a from t0); a 0 @@ -1125,7 +1125,7 @@ explain select * from t3 where a in (select kp1 from t1 where kp1<20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using where; Using index; LooseScan -1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) create table t4 (pk int primary key); insert into t4 select a from t3; explain select * from t3 where a in (select t1.kp1 from t1,t4 where kp1<20 @@ -1133,7 +1133,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using index condition; Using where; Using MRR; LooseScan 1 PRIMARY t4 eq_ref PRIMARY PRIMARY 4 test.t1.c 1 Using index; FirstMatch(t1) -1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) drop table t1, t3, t4; create table t1 (a int) as select * from t0 where a < 5; set @save_max_heap_table_size=@@max_heap_table_size; @@ -1142,10 +1142,10 @@ explain select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY E ALL NULL NULL NULL NULL 5 Start temporary -1 PRIMARY A ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY C ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer +1 PRIMARY A ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +1 PRIMARY C ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer (flat, BNL join) flush status; select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E); count(*) @@ -1183,26 +1183,26 @@ explain select * from t2 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t2 where a in (select a from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t2 where a in (select a from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t1 where a in (select a from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary -1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join) drop table t1, t2, t3; create table t1 (a decimal); insert into t1 values (1),(2); explain select * from t1 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join) drop table t1; set @@optimizer_switch=@save_optimizer_switch; create table t1 (a int); @@ -1219,25 +1219,25 @@ explain select straight_join * from t1 A, t1 B where A.a in (select a from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY A ALL NULL NULL NULL NULL 10 Using where -1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer +1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 10 explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) explain select straight_join * from t2 X, t2 Y where X.a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY X ALL NULL NULL NULL NULL 10 Using where -1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using join buffer +1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) create table t0 (a int, b int); insert into t0 values(1,1); explain select * from t0, t3 where t3.a in (select a from t2) and (t3.a < 10 or t3.a >30); @@ -1262,11 +1262,11 @@ explain select * from t2 where a in (select b from t1 where a=3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan -1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) explain select * from t2 where (b,a) in (select a,b from t1 where a=3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan -1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) drop table t1,t2; create table t1 (a int, b int); insert into t1 select a,a from t0; @@ -1324,8 +1324,8 @@ 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 1 PRIMARY subselect2 eq_ref unique_key unique_key 15 func 1 2 SUBQUERY X ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY Y ALL NULL NULL NULL NULL 6 Using join buffer -2 SUBQUERY Z ALL NULL NULL NULL NULL 6 Using join buffer +2 SUBQUERY Y ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +2 SUBQUERY Z ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) drop table t0,t1,t2;

BUG#37842: Assertion in DsMrr_impl::dsmrr_init, at handler.cc:4307 @@ -1396,7 +1396,7 @@ ); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 2 1.00 -1 PRIMARY a index PRIMARY PRIMARY 4 NULL 2 100.00 Using where; Using index; Using join buffer +1 PRIMARY a index PRIMARY PRIMARY 4 NULL 2 100.00 Using where; Using index; Using join buffer (flat, BNL join) 2 SUBQUERY cona ALL NULL NULL NULL NULL 2 100.00 Using where 2 SUBQUERY c eq_ref PRIMARY PRIMARY 4 test.cona.idContact 1 100.00 Warnings:

=== modified file 'mysql-test/r/subselect3_jcl6.result' --- a/mysql-test/r/subselect3_jcl6.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect3_jcl6.result 2010-10-08 19:30:16 +0000 @@ -167,7 +167,7 @@ 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 DEPENDENT SUBQUERY t1 ref_or_null a a 5 func 4 100.00 Using where; Full scan on NULL key -2 DEPENDENT SUBQUERY t2 ref a a 5 test.t1.b 1 100.00 Using where; Using join buffer +2 DEPENDENT SUBQUERY t2 ref a a 5 test.t1.b 1 100.00 Using where; Using join buffer (flat, BKA join) 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`,(`test`.`t3`.`a`,<exists>(select 1 from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond(((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`)))) having trigcond((`test`.`t1`.`a`)))) AS `Z` from `test`.`t3` @@ -195,7 +195,7 @@ 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 DEPENDENT SUBQUERY t1 ref a a 4 func 2 100.00 Using where; Full scan on NULL key -2 DEPENDENT SUBQUERY t2 ref a a 4 test.t1.b 1 100.00 Using where; Using join buffer +2 DEPENDENT SUBQUERY t2 ref a a 4 test.t1.b 1 100.00 Using where; Using join buffer (flat, BKA join) 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`,(`test`.`t3`.`a`,<exists>(select 1 from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`b`) and (`test`.`t2`.`b` = `test`.`t3`.`oref`) and trigcond((<cache>(`test`.`t3`.`a`) = `test`.`t1`.`a`))))) AS `Z` from `test`.`t3` @@ -268,7 +268,7 @@ 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 ref_or_null a a 5 func 2 100.00 Using where; Full scan on NULL key -2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer +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`,((`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((`test`.`t1`.`a`)) and trigcond((`test`.`t1`.`b`))))) AS `Z` from `test`.`t2` @@ -739,7 +739,7 @@ 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 eq_ref PRIMARY PRIMARY 4 func 1 Using where; Using index; Full scan on NULL key -2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY PRIMARY 4 func 1 Using index condition(BKA); Using where; Full scan on NULL key; Using join buffer +2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY PRIMARY 4 func 1 Using index condition(BKA); Using where; Full scan on NULL key; Using join buffer (flat, BKA join) SELECT * FROM t1 WHERE t1.id NOT IN (SELECT t2.id FROM t2,t3 WHERE t3.name='xxx' AND t2.id=t3.id); @@ -1031,10 +1031,10 @@ t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 8 Using temporary; Using filesort -1 PRIMARY t21 ALL NULL NULL NULL NULL 26 Using where; Using join buffer -1 PRIMARY t22 ALL NULL NULL NULL NULL 26 Using where; Using join buffer +1 PRIMARY t21 ALL NULL NULL NULL NULL 26 Using where; Using join buffer (incremental, BNL join) +1 PRIMARY t22 ALL NULL NULL NULL NULL 26 Using where; Using join buffer (incremental, BNL join) 2 SUBQUERY t11 ALL NULL NULL NULL NULL 8 Using where -2 SUBQUERY t12 ALL NULL NULL NULL NULL 8 Using where; Using join buffer +2 SUBQUERY t12 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) select t21.* from t21,t22 where t21.a = t22.a and t22.a in (select t12.a from t11, t12 where t11.a in(255,256) and t11.a = t12.a and t11.c is null) and t22.c is null order by t21.a; a b c @@ -1066,7 +1066,7 @@ explain select * from t1 where 2 in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 11 Using where; Start temporary; End temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) select * from t1 where 2 in (select a from t0); a 0 @@ -1093,7 +1093,7 @@ explain select * from t1 where 2 in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 11 Using where; FirstMatch -1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) select * from t1 where 2 in (select a from t0); a 0 @@ -1120,7 +1120,7 @@ explain select * from (select a from t0) X where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 11 -1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>); Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>); Using join buffer (flat, BNL join) 2 DERIVED t0 ALL NULL NULL NULL NULL 11 drop table t0, t1; create table t0 (a int); @@ -1133,7 +1133,7 @@ explain select * from t3 where a in (select kp1 from t1 where kp1<20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using where; Using index; LooseScan -1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) create table t4 (pk int primary key); insert into t4 select a from t3; explain select * from t3 where a in (select t1.kp1 from t1,t4 where kp1<20 @@ -1141,7 +1141,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range kp1 kp1 5 NULL 48 Using index condition; Using where; Using MRR; LooseScan 1 PRIMARY t4 eq_ref PRIMARY PRIMARY 4 test.t1.c 1 Using index; FirstMatch(t1) -1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) drop table t1, t3, t4; create table t1 (a int) as select * from t0 where a < 5; set @save_max_heap_table_size=@@max_heap_table_size; @@ -1150,10 +1150,10 @@ explain select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY E ALL NULL NULL NULL NULL 5 Start temporary -1 PRIMARY A ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY C ALL NULL NULL NULL NULL 10 Using join buffer -1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer +1 PRIMARY A ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (incremental, BNL join) +1 PRIMARY C ALL NULL NULL NULL NULL 10 Using join buffer (incremental, BNL join) +1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer (incremental, BNL join) flush status; select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E); count(*) @@ -1173,7 +1173,7 @@ explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 2 -1 PRIMARY t3 ref a a 5 test.t2.a 1 Using join buffer +1 PRIMARY t3 ref a a 5 test.t2.a 1 Using join buffer (flat, BKA join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where select * from t3 where a in (select a from t2); a filler @@ -1191,26 +1191,26 @@ explain select * from t2 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t2 where a in (select a from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t2 where a in (select a from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join) explain select * from t1 where a in (select a from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary -1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join) drop table t1, t2, t3; create table t1 (a decimal); insert into t1 values (1),(2); explain select * from t1 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join) drop table t1; set @@optimizer_switch=@save_optimizer_switch; create table t1 (a int); @@ -1222,44 +1222,44 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 10 Using where 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 10 -1 PRIMARY t3 ref a a 5 test.t2.a 10 Using join buffer +1 PRIMARY t3 ref a a 5 test.t2.a 10 Using join buffer (flat, BKA join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 10 Using where explain select straight_join * from t1 A, t1 B where A.a in (select a from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY A ALL NULL NULL NULL NULL 10 Using where -1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer +1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 10 explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) explain select * from t2 where a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 10 Using where 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) explain select straight_join * from t2 X, t2 Y where X.a in (select straight_join A.a from t1 A, t1 B); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY X ALL NULL NULL NULL NULL 10 Using where -1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using join buffer +1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 2 SUBQUERY A ALL NULL NULL NULL NULL 10 -2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer +2 SUBQUERY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) create table t0 (a int, b int); insert into t0 values(1,1); explain select * from t0, t3 where t3.a in (select a from t2) and (t3.a < 10 or t3.a >30); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 system NULL NULL NULL NULL 1 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 10 -1 PRIMARY t3 ref a a 5 test.t2.a 10 Using join buffer +1 PRIMARY t3 ref a a 5 test.t2.a 10 Using join buffer (flat, BKA join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 10 Using where create table t4 as select a as x, a as y from t1; explain select * from t0, t3 where (t3.a, t3.b) in (select x,y from t4) and (t3.a < 10 or t3.a >30); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 system NULL NULL NULL NULL 1 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 10 -1 PRIMARY t3 ref a a 5 test.t4.x 10 Using where; Using join buffer +1 PRIMARY t3 ref a a 5 test.t4.x 10 Using where; Using join buffer (flat, BKA join) 2 SUBQUERY t4 ALL NULL NULL NULL NULL 10 Using where drop table t0,t1,t2,t3,t4; create table t0 (a int); @@ -1270,11 +1270,11 @@ explain select * from t2 where a in (select b from t1 where a=3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan -1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) explain select * from t2 where (b,a) in (select a,b from t1 where a=3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range a a 5 NULL 8 Using where; Using index; LooseScan -1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) drop table t1,t2; create table t1 (a int, b int); insert into t1 select a,a from t0; @@ -1303,7 +1303,7 @@ explain select * from t0 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 2 -1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join) select * from t0 where a in (select a from t1); a 10.24 @@ -1316,7 +1316,7 @@ explain select * from t0 where a in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 2 -1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t0); Using join buffer (flat, BNL join) select * from t0 where a in (select a from t1); a 2008-01-01 @@ -1332,8 +1332,8 @@ 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 1 PRIMARY subselect2 eq_ref unique_key unique_key 15 func 1 2 SUBQUERY X ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY Y ALL NULL NULL NULL NULL 6 Using join buffer -2 SUBQUERY Z ALL NULL NULL NULL NULL 6 Using join buffer +2 SUBQUERY Y ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +2 SUBQUERY Z ALL NULL NULL NULL NULL 6 Using join buffer (incremental, BNL join) drop table t0,t1,t2;

BUG#37842: Assertion in DsMrr_impl::dsmrr_init, at handler.cc:4307 @@ -1404,9 +1404,9 @@ ); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 2 1.00 -1 PRIMARY a index PRIMARY PRIMARY 4 NULL 2 100.00 Using where; Using index; Using join buffer +1 PRIMARY a index PRIMARY PRIMARY 4 NULL 2 100.00 Using where; Using index; Using join buffer (incremental, BNL join) 2 SUBQUERY cona ALL NULL NULL NULL NULL 2 100.00 Using where -2 SUBQUERY c eq_ref PRIMARY PRIMARY 4 test.cona.idContact 1 100.00 Using join buffer +2 SUBQUERY c eq_ref PRIMARY PRIMARY 4 test.cona.idContact 1 100.00 Using join buffer (flat, BKA join) Warnings: Note 1003 select `test`.`a`.`idIndividual` AS `idIndividual` from `test`.`t1` `a` semi join (`test`.`t3` `cona` join `test`.`t2` `c`) where ((`test`.`c`.`idContact` = `test`.`cona`.`idContact`) and (`test`.`a`.`idIndividual` = `test`.`c`.`idObj`) and (`test`.`cona`.`postalStripped` = 'T2H3B2')) drop table t1,t2,t3;

=== modified file 'mysql-test/r/subselect4.result' --- a/mysql-test/r/subselect4.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/r/subselect4.result 2010-10-08 19:30:16 +0000 @@ -51,7 +51,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE 2 DEPENDENT SUBQUERY t1 index NULL PRIMARY 4 NULL 2 Using index -2 DEPENDENT SUBQUERY t2 index b b 5 NULL 2 Using where; Using index; Using join buffer +2 DEPENDENT SUBQUERY t2 index b b 5 NULL 2 Using where; Using index; Using join buffer (flat, BNL join) # should return 0 rows SELECT (SELECT 1 FROM t1,t2 WHERE t2.b > t3.b) @@ -218,7 +218,7 @@ 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -233,13 +233,13 @@ 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; CREATE INDEX t1_IDX ON t1(EMPNUM); @@ -256,7 +256,7 @@ 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -271,13 +271,13 @@ 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; EXPLAIN SELECT EMPNAME @@ -293,7 +293,7 @@ 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -308,13 +308,13 @@ 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 1 SIMPLE subselect2 eq_ref unique_key unique_key 3 func 1 2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; SET SESSION optimizer_switch = @old_optimizer_switch; SET SESSION join_cache_level = @old_join_cache_level;

=== modified file 'mysql-test/r/subselect_mat.result' --- a/mysql-test/r/subselect_mat.result 2010-07-16 11:02:15 +0000 +++ b/mysql-test/r/subselect_mat.result 2010-10-08 19:30:16 +0000 @@ -423,7 +423,7 @@ a1 = c1; 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 -1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) 4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where 5 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where @@ -659,7 +659,7 @@ 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where 2 DEPENDENT SUBQUERY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where -3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer +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 (concat(`test`.`t1`.`a1`,'x'),<exists>(select 1 from `test`.`t1_16` where (((`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 (`test`.`t2`.`b1`,`test`.`t2`.`b1` in ( <materialize> (select `test`.`t3`.`c1` from `test`.`t3` where (`test`.`t3`.`c2` > '0') ), (`test`.`t2`.`b1` in <temporary table> on distinct_key where ((`test`.`t2`.`b1` = `materialized subselect`.`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))))) @@ -1191,7 +1191,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 2 -1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); COUNT(*)

=== modified file 'mysql-test/r/subselect_no_mat.result' --- a/mysql-test/r/subselect_no_mat.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_no_mat.result 2010-10-08 19:30:16 +0000 @@ -910,7 +910,7 @@ 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 index -2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +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`,(`test`.`t1`.`a`,<exists>(select 1 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 (`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; @@ -1300,7 +1300,7 @@ 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 +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); @@ -1310,7 +1310,7 @@ 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 +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); @@ -1320,7 +1320,7 @@ 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 +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`))

=== modified file 'mysql-test/r/subselect_no_opts.result' --- a/mysql-test/r/subselect_no_opts.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_no_opts.result 2010-10-08 19:30:16 +0000 @@ -907,7 +907,7 @@ 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 index -2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +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`,(`test`.`t1`.`a`,<exists>(select 1 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 (`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; @@ -1361,7 +1361,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index 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 +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 (`test`.`t2`.`a`,<exists>(select 1 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);

=== modified file 'mysql-test/r/subselect_no_semijoin.result' --- a/mysql-test/r/subselect_no_semijoin.result 2010-07-16 08:58:24 +0000 +++ b/mysql-test/r/subselect_no_semijoin.result 2010-10-08 19:30:16 +0000 @@ -907,7 +907,7 @@ 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 index -2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +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`,(`test`.`t1`.`a`,<exists>(select 1 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 (`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; @@ -1318,7 +1318,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 index NULL PRIMARY 4 NULL 4 100.00 Using where; Using index 2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 3 100.00 Using index -2 SUBQUERY t1 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer +2 SUBQUERY t1 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where (`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where (`test`.`t1`.`b` = `test`.`t3`.`a`) ), (`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `materialized subselect`.`a`))))) drop table t1, t2, t3; @@ -1361,7 +1361,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index 2 SUBQUERY t3 index a a 5 NULL 3 100.00 Using index -2 SUBQUERY t1 index NULL a 10 NULL 10004 100.00 Using where; Using index; Using join buffer +2 SUBQUERY t1 index NULL a 10 NULL 10004 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 (`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where (`test`.`t1`.`b` = `test`.`t3`.`a`) ), (`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `materialized subselect`.`a`))))) insert into t1 values (3,31);

=== modified file 'mysql-test/r/subselect_sj.result' --- a/mysql-test/r/subselect_sj.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_sj.result 2010-10-08 19:30:16 +0000 @@ -101,75 +101,75 @@ ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY s00 ALL NULL NULL NULL NULL 3 Using where -1 PRIMARY s01 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s02 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s03 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s04 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s05 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s06 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s07 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s08 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s09 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s10 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s11 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s12 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s13 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s14 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s15 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s16 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s17 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s18 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s19 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s20 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s21 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s22 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s23 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s24 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s25 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s26 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s27 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s28 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s29 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s30 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s31 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s32 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s33 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s34 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s35 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s36 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s37 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s38 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s39 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s40 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s41 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s42 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s43 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s44 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s45 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s46 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s47 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s48 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s49 ALL NULL NULL NULL NULL 3 Using join buffer +1 PRIMARY s01 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s02 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s03 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s04 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s05 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s06 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s07 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s08 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s09 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s10 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s11 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s12 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s13 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s14 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s15 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s16 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s17 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s18 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s19 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s20 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s21 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s22 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s23 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s24 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s25 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s26 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s27 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s28 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s29 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s30 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s31 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s32 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s33 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s34 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s35 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s36 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s37 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s38 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s39 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s40 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s41 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s42 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s43 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s44 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s45 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s46 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s47 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s48 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s49 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) 2 DEPENDENT SUBQUERY m00 ALL NULL NULL NULL NULL 3 Using where -2 DEPENDENT SUBQUERY m01 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m02 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m03 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m04 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m05 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m06 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m07 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m08 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m09 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m10 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m11 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m12 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m13 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m14 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m15 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m16 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m17 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m18 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m19 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +2 DEPENDENT SUBQUERY m01 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m02 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m03 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m04 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m05 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m06 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m07 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m08 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m09 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m10 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m11 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m12 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m13 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m14 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m15 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m16 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m17 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m18 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m19 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t10)) where t1.a < 5; @@ -195,7 +195,7 @@ explain extended select * from t1 where a in (select pk from t10 where pk<3); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t10 range PRIMARY PRIMARY 4 NULL 4 100.00 Using where; Using index -1 PRIMARY t1 ALL NULL NULL NULL NULL 103 100.00 Using where; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 103 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where ((`test`.`t1`.`a` = `test`.`t10`.`pk`) and (`test`.`t10`.`pk` < 3)) drop table t0, t1, t2; @@ -738,7 +738,7 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY it1 index NULL int_key 4 NULL 2 Using index; Start temporary -1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using join buffer +1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) 1 PRIMARY it2 ALL NULL NULL NULL NULL 20 Using where; End temporary DROP TABLE ot1, it1, it2; # End of BUG#38075 @@ -770,7 +770,7 @@ where a in (select c from t2 where d >= some(select e from t3 where b=e)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 6 100.00 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; End temporary; Using join buffer (flat, BNL join) 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

=== modified file 'mysql-test/r/subselect_sj2.result' --- a/mysql-test/r/subselect_sj2.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_sj2.result 2010-10-08 19:30:16 +0000 @@ -130,7 +130,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 22 -1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer +1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z @@ -198,7 +198,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 22 -1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer +1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z @@ -272,7 +272,7 @@ (select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 10 Start temporary -1 PRIMARY t1 index NULL a 5 NULL 10 Using index; Using join buffer +1 PRIMARY t1 index NULL a 5 NULL 10 Using index; Using join buffer (flat, BNL join) 1 PRIMARY t2 ref a a 5 test.t1.a 1 Using where; Using index 1 PRIMARY t3 ref a a 5 test.t1.a 1 Using where; Using index; End temporary drop table t0, t1,t2,t3;

=== modified file 'mysql-test/r/subselect_sj2_jcl6.result' --- a/mysql-test/r/subselect_sj2_jcl6.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_sj2_jcl6.result 2010-10-08 19:30:16 +0000 @@ -40,7 +40,7 @@ explain select * from t2 where b in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 3 -1 PRIMARY t2 ref b b 5 test.t1.a 2 Using join buffer +1 PRIMARY t2 ref b b 5 test.t1.a 2 Using join buffer (flat, BKA join) 2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where select * from t2 where b in (select a from t1); a b @@ -59,7 +59,7 @@ explain select * from t3 where b in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t3 ALL b NULL NULL NULL 10 -1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; FirstMatch(t3); Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; FirstMatch(t3); Using join buffer (flat, BNL join) select * from t3 where b in (select a from t1); a b pk1 pk2 pk3 1 1 1 1 1 @@ -82,7 +82,7 @@ explain select * from t3 where b in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 10 -1 PRIMARY t3 ref b b 5 test.t0.a 1 Using join buffer +1 PRIMARY t3 ref b b 5 test.t0.a 1 Using join buffer (flat, BKA join) 2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where set @save_ecp= @@engine_condition_pushdown; set engine_condition_pushdown=0; @@ -137,7 +137,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 22 -1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer +1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z @@ -205,7 +205,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY subselect2 ALL unique_key NULL NULL NULL 22 -1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer +1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join) 2 SUBQUERY it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z @@ -279,7 +279,7 @@ (select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 10 Start temporary -1 PRIMARY t1 index NULL a 5 NULL 10 Using index; Using join buffer +1 PRIMARY t1 index NULL a 5 NULL 10 Using index; Using join buffer (flat, BNL join) 1 PRIMARY t2 ref a a 5 test.t1.a 1 Using where; Using index 1 PRIMARY t3 ref a a 5 test.t1.a 1 Using where; Using index; End temporary drop table t0, t1,t2,t3; @@ -318,8 +318,8 @@ t2.Population > 100000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 range Population,Country Population 4 NULL 1 Using index condition; Using MRR -1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; Using join buffer -1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t3.Country 1 Using index condition(BKA); Using where; Using join buffer +1 PRIMARY t3 eq_ref PRIMARY,Percentage PRIMARY 33 test.t1.Country,const 1 Using index condition; Using where; Using join buffer (flat, BKA join) +1 PRIMARY t2 eq_ref PRIMARY,Population PRIMARY 3 test.t3.Country 1 Using index condition(BKA); Using where; Using join buffer (incremental, BKA join) DROP TABLE t1,t2,t3; CREATE TABLE t1 ( Code char(3) NOT NULL DEFAULT '', @@ -433,8 +433,8 @@ t1.b=t2.b); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary -1 PRIMARY t1 ref a a 5 test.t0.a 1 100.00 Using join buffer -1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 100.00 Using where; End temporary; Using join buffer +1 PRIMARY t1 ref a a 5 test.t0.a 1 100.00 Using join buffer (flat, BKA join) +1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 100.00 Using where; End temporary; Using join buffer (incremental, BKA join) Warnings: Note 1276 Field or reference 'test.t0.a' of SELECT #2 was resolved in SELECT #1 Note 1003 select `test`.`t0`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) join `test`.`t0` where ((`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t1`.`a` = `test`.`t0`.`a`) and (`test`.`t2`.`a` = `test`.`t0`.`a`)) @@ -587,7 +587,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 -1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) 2 DEPENDENT SUBQUERY t3 unique_subquery PRIMARY PRIMARY 4 func 1 Using index drop table t0, t1, t2, t3; create table t1 (a int); @@ -728,9 +728,9 @@ c1 in (select convert(c6,char(1)) from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where -1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using join buffer -1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer -1 PRIMARY t3 ALL NULL NULL NULL NULL 2 FirstMatch(t2); Using join buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) +1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join) +1 PRIMARY t3 ALL NULL NULL NULL NULL 2 FirstMatch(t2); Using join buffer (incremental, BNL join) drop table t2, t3; set join_cache_level=default; show variables like 'join_cache_level';

=== modified file 'mysql-test/r/subselect_sj_jcl6.result' --- a/mysql-test/r/subselect_sj_jcl6.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/subselect_sj_jcl6.result 2010-10-08 19:30:16 +0000 @@ -59,7 +59,7 @@ explain select * from t1 where a in (select pk from t10 where t10.a in (select pk from t12)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where -1 PRIMARY t10 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer +1 PRIMARY t10 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using join buffer (flat, BKA join) 1 PRIMARY t12 eq_ref PRIMARY PRIMARY 4 test.t10.a 1 Using index select * from t1 where a in (select pk from t10 where t10.a in (select pk from t12)); a b @@ -70,7 +70,7 @@ explain extended select * from t1 where a in (select t10.pk from t10, t12 where t12.pk=t10.a); 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 -1 PRIMARY t10 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 100.00 Using where; Using join buffer +1 PRIMARY t10 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 100.00 Using where; Using join buffer (flat, BKA join) 1 PRIMARY t12 eq_ref PRIMARY PRIMARY 4 test.t10.a 1 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t12` join `test`.`t1` where ((`test`.`t10`.`pk` = `test`.`t1`.`a`) and (`test`.`t12`.`pk` = `test`.`t10`.`a`)) @@ -79,8 +79,8 @@ select * from t1 left join (t2 A, t2 B) on ( A.A= t1.A And B.A in (select pk from t10)); 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 -1 PRIMARY A ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer -1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer +1 PRIMARY A ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join) +1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (incrementAl, BNL join) 2 DEPENDENT SUBQUERY t10 unique_suBquery PRIMARY PRIMARY 4 func 1 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on(((`test`.`A`.`A` = `test`.`t1`.`A`) And (`test`.`B`.`A`,<exists>((<cAche>(`test`.`B`.`A`) in t10 on PRIMARY))))) where 1 @@ -89,7 +89,7 @@ select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10)); 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 -1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer +1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join) 2 DEPENDENT SUBQUERY t10 unique_suBquery PRIMARY PRIMARY 4 func 1 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on(((`test`.`t2`.`A` = `test`.`t1`.`A`) And (`test`.`t2`.`A`,<exists>((<cAche>(`test`.`t2`.`A`) in t10 on PRIMARY))))) where 1 @@ -108,75 +108,75 @@ ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY s00 ALL NULL NULL NULL NULL 3 Using where -1 PRIMARY s01 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s02 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s03 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s04 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s05 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s06 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s07 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s08 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s09 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s10 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s11 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s12 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s13 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s14 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s15 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s16 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s17 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s18 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s19 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s20 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s21 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s22 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s23 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s24 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s25 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s26 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s27 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s28 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s29 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s30 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s31 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s32 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s33 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s34 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s35 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s36 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s37 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s38 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s39 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s40 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s41 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s42 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s43 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s44 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s45 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s46 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s47 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s48 ALL NULL NULL NULL NULL 3 Using join buffer -1 PRIMARY s49 ALL NULL NULL NULL NULL 3 Using join buffer +1 PRIMARY s01 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +1 PRIMARY s02 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s03 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s04 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s05 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s06 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s07 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s08 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s09 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s10 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s11 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s12 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s13 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s14 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s15 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s16 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s17 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s18 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s19 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s20 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s21 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s22 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s23 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s24 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s25 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s26 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s27 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s28 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s29 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s30 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s31 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s32 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s33 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s34 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s35 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s36 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s37 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s38 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s39 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s40 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s41 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s42 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s43 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s44 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s45 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s46 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s47 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s48 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +1 PRIMARY s49 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) 2 DEPENDENT SUBQUERY m00 ALL NULL NULL NULL NULL 3 Using where -2 DEPENDENT SUBQUERY m01 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m02 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m03 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m04 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m05 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m06 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m07 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m08 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m09 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m10 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m11 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m12 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m13 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m14 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m15 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m16 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m17 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m18 ALL NULL NULL NULL NULL 3 Using join buffer -2 DEPENDENT SUBQUERY m19 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +2 DEPENDENT SUBQUERY m01 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY m02 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m03 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m04 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m05 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m06 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m07 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m08 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m09 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m10 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m11 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m12 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m13 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m14 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m15 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m16 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m17 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m18 ALL NULL NULL NULL NULL 3 Using join buffer (incremental, BNL join) +2 DEPENDENT SUBQUERY m19 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (incremental, BNL join) select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t10)) where t1.a < 5; @@ -202,7 +202,7 @@ explain extended select * from t1 where a in (select pk from t10 where pk<3); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t10 range PRIMARY PRIMARY 4 NULL 4 100.00 Using where; Using index -1 PRIMARY t1 ALL NULL NULL NULL NULL 103 100.00 Using where; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 103 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where ((`test`.`t1`.`a` = `test`.`t10`.`pk`) and (`test`.`t10`.`pk` < 3)) drop table t0, t1, t2; @@ -340,8 +340,8 @@ (SELECT PNUM FROM PROJ)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY STAFF ALL NULL NULL NULL NULL 5 -1 PRIMARY PROJ ALL NULL NULL NULL NULL 6 Using join buffer -1 PRIMARY WORKS ALL NULL NULL NULL NULL 12 Using where; FirstMatch(STAFF); Using join buffer +1 PRIMARY PROJ ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +1 PRIMARY WORKS ALL NULL NULL NULL NULL 12 Using where; FirstMatch(STAFF); Using join buffer (incremental, BNL join) SELECT EMPNUM, EMPNAME FROM STAFF WHERE EMPNUM IN @@ -515,7 +515,7 @@ (SELECT t1.pk FROM t0 t1 JOIN t0 t2 ON t2.vkey = t1.vnokey); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t0 ALL PRIMARY NULL NULL NULL 5 100.00 -1 PRIMARY t1 eq_ref PRIMARY PRIMARY 4 test.t0.pk 1 100.00 Using where; Using join buffer +1 PRIMARY t1 eq_ref PRIMARY PRIMARY 4 test.t0.pk 1 100.00 Using where; Using join buffer (flat, BKA join) 1 PRIMARY t2 ref vkey vkey 4 test.t1.vnokey 2 100.00 Using index; FirstMatch(t1) Warnings: Note 1003 select `test`.`t0`.`vkey` AS `vkey` from `test`.`t0` `t1` semi join (`test`.`t0` `t2`) join `test`.`t0` where ((`test`.`t2`.`vkey` = `test`.`t1`.`vnokey`) and (`test`.`t1`.`pk` = `test`.`t0`.`pk`)) @@ -745,8 +745,8 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY it1 index NULL int_key 4 NULL 2 Using index; Start temporary -1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using join buffer -1 PRIMARY it2 ALL NULL NULL NULL NULL 20 Using where; End temporary; Using join buffer +1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join) +1 PRIMARY it2 ALL NULL NULL NULL NULL 20 Using where; End temporary; Using join buffer (incremental, BNL join) DROP TABLE ot1, it1, it2; # End of BUG#38075 # @@ -777,7 +777,7 @@ where a in (select c from t2 where d >= some(select e from t3 where b=e)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 6 100.00 Start temporary -1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; End temporary; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; End temporary; Using join buffer (flat, BNL join) 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 @@ -828,7 +828,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, c) IN (SELECT b, c FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`c` = `test`.`t1`.`c`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, c) IN (SELECT b, c FROM t2 WHERE pk > 0); @@ -838,7 +838,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, d) IN (SELECT b, d FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`d` = `test`.`t1`.`d`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, d) IN (SELECT b, d FROM t2 WHERE pk > 0); @@ -847,7 +847,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, e) IN (SELECT b, e FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`e` = `test`.`t1`.`e`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, e) IN (SELECT b, e FROM t2 WHERE pk > 0); @@ -857,7 +857,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, f) IN (SELECT b, f FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`f` = `test`.`t1`.`f`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, f) IN (SELECT b, f FROM t2 WHERE pk > 0); @@ -867,7 +867,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, g) IN (SELECT b, g FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`g` = `test`.`t1`.`g`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, g) IN (SELECT b, g FROM t2 WHERE pk > 0); @@ -877,7 +877,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, h) IN (SELECT b, h FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`h` = `test`.`t1`.`h`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, h) IN (SELECT b, h FROM t2 WHERE pk > 0); @@ -887,7 +887,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, i) IN (SELECT b, i FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`i` = `test`.`t1`.`i`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, i) IN (SELECT b, i FROM t2 WHERE pk > 0); @@ -897,7 +897,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, j) IN (SELECT b, j FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`j` = `test`.`t1`.`j`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, j) IN (SELECT b, j FROM t2 WHERE pk > 0); @@ -907,7 +907,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (b, k) IN (SELECT b, k FROM t2 WHERE pk > 0); 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 -1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer +1 PRIMARY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Using where; Using MRR; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`k` = `test`.`t1`.`k`) and (`test`.`t2`.`b` = `test`.`t1`.`b`) and (`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (b, k) IN (SELECT b, k FROM t2 WHERE pk > 0); @@ -1069,8 +1069,8 @@ WHERE t3.val LIKE 'a%' OR t3.val LIKE 'e%'); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 -1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where; FirstMatch(t1); Using join buffer -1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; FirstMatch(t3); Using join buffer +1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where; FirstMatch(t1); Using join buffer (flat, BNL join) +1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; FirstMatch(t3); Using join buffer (incremental, BNL join) SELECT * FROM t1 WHERE t1.val IN (SELECT t2.val FROM t2 @@ -1104,8 +1104,8 @@ (SELECT t1.a FROM t1, t2 WHERE t2.a=t0.a AND t1.b=t2.b); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 5 Using where; Start temporary -1 PRIMARY t1 ref a a 5 test.t0.a 1 Using join buffer -1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 Using where; End temporary; Using join buffer +1 PRIMARY t1 ref a a 5 test.t0.a 1 Using join buffer (flat, BKA join) +1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 Using where; End temporary; Using join buffer (incremental, BKA join) SELECT * FROM t0 WHERE t0.a IN (SELECT t1.a FROM t1, t2 WHERE t2.a=t0.a AND t1.b=t2.b); a

=== modified file 'mysql-test/r/union.result' --- a/mysql-test/r/union.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/r/union.result 2010-10-08 19:30:16 +0000 @@ -542,7 +542,7 @@ 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 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index -2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index; Using join buffer +2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index; Using join buffer (flat, BNL join) NULL UNION RESULT ALL NULL NULL NULL NULL NULL explain (select * from t1 where a=1) union (select * from t1 where b=1); id select_type table type possible_keys key key_len ref rows Extra

=== modified file 'mysql-test/r/view.result' --- a/mysql-test/r/view.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/r/view.result 2010-10-08 19:30:16 +0000 @@ -2350,7 +2350,7 @@ EXPLAIN SELECT * FROM v2 WHERE a=1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref a a 5 const 1 Using index -1 SIMPLE t3 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t3 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) DROP VIEW v1,v2; DROP TABLE t1,t2,t3; create table t1 (f1 int);

=== modified file 'mysql-test/suite/pbxt/r/derived.result' --- a/mysql-test/suite/pbxt/r/derived.result 2009-04-02 10:03:14 +0000 +++ b/mysql-test/suite/pbxt/r/derived.result 2010-10-08 19:30:16 +0000 @@ -58,7 +58,7 @@ explain select * from t1 as x1, (select * from t1) as x2; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY x1 ALL NULL NULL NULL NULL 4 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 Using join buffer (flat, BNL join) 2 DERIVED t1 ALL NULL NULL NULL NULL 4 drop table if exists t2,t3; select * from (select 1) as a; @@ -115,7 +115,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> system NULL NULL NULL NULL 1 2 DERIVED t2 ALL NULL NULL NULL NULL 1 -2 DERIVED t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer +2 DERIVED t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) drop table t1, t2; create table t1(a int not null, t char(8), index(a)); SELECT * FROM (SELECT * FROM t1) as b ORDER BY a ASC LIMIT 0,20; @@ -143,7 +143,7 @@ explain select count(*) from t1 as tt1, (select * from t1) as tt2; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY tt1 index NULL a 4 NULL 10000 Using index -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 10000 Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 10000 Using join buffer (flat, BNL join) 2 DERIVED t1 ALL NULL NULL NULL NULL 10000 drop table t1; SELECT * FROM (SELECT (SELECT * FROM (SELECT 1 as a) as a )) as b; @@ -190,13 +190,13 @@ explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY m2 ALL NULL NULL NULL NULL 9 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY m2 ALL NULL NULL NULL NULL 9 -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 drop table t1,t2; @@ -250,7 +250,7 @@ explain select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 -1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2 Using join buffer +1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) 4 DERIVED t1 ALL NULL NULL NULL NULL 2 5 UNION t1 ALL NULL NULL NULL NULL 2 NULL UNION RESULT ALL NULL NULL NULL NULL NULL @@ -317,7 +317,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 Using temporary; Using filesort 2 DERIVED x ALL NULL NULL NULL NULL 17 Using temporary; Using filesort -2 DERIVED y ALL NULL NULL NULL NULL 17 Using where; Using join buffer +2 DERIVED y ALL NULL NULL NULL NULL 17 Using where; Using join buffer (flat, BNL join) drop table t1; create table t2 (a int, b int, primary key (a)); insert into t2 values (1,7),(2,7);

=== modified file 'mysql-test/suite/pbxt/r/distinct.result' --- a/mysql-test/suite/pbxt/r/distinct.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/suite/pbxt/r/distinct.result 2010-10-08 19:30:16 +0000 @@ -300,11 +300,11 @@ AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2)); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index id id 4 NULL 2 Using index; Using temporary -1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join buffer -1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join buffer -1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer +1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join buffer (flat, BNL join) +1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join buffer (flat, BNL join) +1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer (flat, BNL join) 1 SIMPLE t2_lj ref id id 4 test.j_lj_t2.id 1 Using where; Using index; Distinct -1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer +1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer (flat, BNL join) 1 SIMPLE t3_lj ref id id 4 test.j_lj_t3.id 1 Using where; Using index; Distinct SELECT DISTINCT t1.id @@ -515,7 +515,7 @@ EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1_1 ALL NULL NULL NULL NULL 3 Using temporary -1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct; Using join buffer +1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct; Using join buffer (flat, BNL join) EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2 WHERE t1_1.a = t1_2.a; id select_type table type possible_keys key key_len ref rows Extra

=== modified file 'mysql-test/suite/pbxt/r/func_group.result' --- a/mysql-test/suite/pbxt/r/func_group.result 2010-01-16 05:12:57 +0000 +++ b/mysql-test/suite/pbxt/r/func_group.result 2010-10-08 19:30:16 +0000 @@ -614,7 +614,7 @@ select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 > 'CA'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index -1 SIMPLE t2 range k1 k1 3 NULL 1 Using where; Using index; Using join buffer +1 SIMPLE t2 range k1 k1 3 NULL 1 Using where; Using index; Using join buffer (flat, BNL join) explain select min(a4 - 0.01) from t1; id select_type table type possible_keys key key_len ref rows Extra @@ -651,7 +651,7 @@ select concat(min(t1.a1),min(t2.a4)) from t1, t2 where t2.a4 <> 'AME'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index k2 k2 4 NULL 7 Using where; Using index -1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index; Using join buffer +1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index; Using join buffer (flat, BNL join) drop table t1, t2; create table t1 (a char(10)); insert into t1 values ('a'),('b'),('c');

=== modified file 'mysql-test/suite/pbxt/r/greedy_optimizer.result' --- a/mysql-test/suite/pbxt/r/greedy_optimizer.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/suite/pbxt/r/greedy_optimizer.result 2010-10-08 19:30:16 +0000 @@ -121,11 +121,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -133,11 +133,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -145,11 +145,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -157,11 +157,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -169,11 +169,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -181,11 +181,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -201,11 +201,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -213,11 +213,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -225,11 +225,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -237,11 +237,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -249,11 +249,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -261,11 +261,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -277,11 +277,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -289,11 +289,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -304,9 +304,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -316,9 +316,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -328,9 +328,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -340,9 +340,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -353,11 +353,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -365,11 +365,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -377,11 +377,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -389,11 +389,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -401,11 +401,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -413,11 +413,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -433,11 +433,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -445,11 +445,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -457,11 +457,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -469,11 +469,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -481,11 +481,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -493,11 +493,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -509,11 +509,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -521,11 +521,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -536,9 +536,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -548,9 +548,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -560,9 +560,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -572,9 +572,9 @@ 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) show status like 'Last_query_cost'; Variable_name Value Last_query_cost 795.625316 @@ -585,11 +585,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -597,11 +597,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -609,11 +609,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -621,11 +621,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -633,11 +633,11 @@ explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -645,11 +645,11 @@ explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value

=== modified file 'mysql-test/suite/pbxt/r/group_by.result' --- a/mysql-test/suite/pbxt/r/group_by.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/suite/pbxt/r/group_by.result 2010-10-08 19:30:16 +0000 @@ -537,11 +537,11 @@ explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join) drop table t1,t2; create table t1 (a int, b int); insert into t1 values (1, 4),(10, 40),(1, 4),(10, 43),(1, 4),(10, 41),(1, 4),(10, 43),(1, 4);

=== modified file 'mysql-test/suite/pbxt/r/group_min_max.result' --- a/mysql-test/suite/pbxt/r/group_min_max.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/suite/pbxt/r/group_min_max.result 2010-10-08 19:30:16 +0000 @@ -2268,7 +2268,7 @@ AND t1_outer1.b = t1_outer2.b; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index -1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer +1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer (flat, BNL join) 2 SUBQUERY t1 index NULL a 10 NULL 15 Using index EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;

=== modified file 'mysql-test/suite/pbxt/r/join_nested.result' --- a/mysql-test/suite/pbxt/r/join_nested.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/suite/pbxt/r/join_nested.result 2010-10-08 19:30:16 +0000 @@ -229,7 +229,7 @@ ON t7.b=t8.b AND t6.b < 10; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1003 select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t7`.`b` = `test`.`t8`.`b`) and (`test`.`t6`.`b` < 10))) where 1 @@ -544,7 +544,7 @@ (t2.a >= 4 OR t2.c IS NULL); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -639,7 +639,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -647,7 +647,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t9.a,t9.b @@ -836,7 +836,7 @@ WHERE t1.a <= 2; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: @@ -850,7 +850,7 @@ ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) 1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 1 100.00 Using where 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: @@ -906,7 +906,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where @@ -914,7 +914,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t4(b); @@ -956,7 +956,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 1 100.00 Using where @@ -964,7 +964,7 @@ 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on((((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1)) and (`test`.`t2`.`b` is not null))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t8(b); @@ -1005,7 +1005,7 @@ (t9.a=1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t0 ALL NULL NULL NULL NULL 3 -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 1 @@ -1013,7 +1013,7 @@ 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 1 -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) ATTENTION: the above EXPLAIN has several competing QEPs with identical . costs. To combat the plan change it uses --sorted_result and . and --replace tricks @@ -1064,7 +1064,7 @@ 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 1 -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 Using join buffer +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join) ATTENTION: the above EXPLAIN has several competing QEPs with identical . costs. To combat the plan change it uses --sorted_result . and --replace tricks

=== modified file 'mysql-test/suite/pbxt/r/range.result' --- a/mysql-test/suite/pbxt/r/range.result 2010-06-26 10:05:41 +0000 +++ b/mysql-test/suite/pbxt/r/range.result 2010-10-08 19:30:16 +0000 @@ -222,27 +222,27 @@ explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref y y 5 const 1 -1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer +1 SIMPLE t2 range x x 5 NULL 1 Using where; Using join buffer (flat, BNL join) explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref x x 5 const 1 Using index @@ -422,20 +422,20 @@ test.t2 analyze status OK explain select * from t1, t2 where t1.uid=t2.uid AND t1.uid > 0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range uid_index uid_index 4 NULL 1 Using where -1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1 +1 SIMPLE t2 range uid_index uid_index 4 NULL 1 Using where +1 SIMPLE t1 ref uid_index uid_index 4 test.t2.uid 1 explain select * from t1, t2 where t1.uid=t2.uid AND t2.uid > 0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range uid_index uid_index 4 NULL 1 Using where -1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1 +1 SIMPLE t2 range uid_index uid_index 4 NULL 1 Using where +1 SIMPLE t1 ref uid_index uid_index 4 test.t2.uid 1 explain select * from t1, t2 where t1.uid=t2.uid AND t1.uid != 0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range uid_index uid_index 4 NULL 2 Using where -1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1 +1 SIMPLE t2 range uid_index uid_index 4 NULL 2 Using where +1 SIMPLE t1 ref uid_index uid_index 4 test.t2.uid 1 explain select * from t1, t2 where t1.uid=t2.uid AND t2.uid != 0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range uid_index uid_index 4 NULL 2 Using where -1 SIMPLE t2 ref uid_index uid_index 4 test.t1.uid 1 +1 SIMPLE t2 range uid_index uid_index 4 NULL 2 Using where +1 SIMPLE t1 ref uid_index uid_index 4 test.t2.uid 1 select * from t1, t2 where t1.uid=t2.uid AND t1.uid > 0; id name uid id name uid 1001 A 1 1001 A 1

=== modified file 'mysql-test/suite/pbxt/r/select.result' --- a/mysql-test/suite/pbxt/r/select.result 2010-09-28 19:39:33 +0000 +++ b/mysql-test/suite/pbxt/r/select.result 2010-10-08 19:30:16 +0000 @@ -1437,7 +1437,7 @@ explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary -1 SIMPLE t2 ALL NULL NULL NULL NULL 1200 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 1200 Using where; Using join buffer (flat, BNL join) select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008 @@ -2723,7 +2723,7 @@ t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort -1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer +1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (flat, BNL join) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; CREATE TABLE t1 (a int, INDEX idx(a)); @@ -2746,7 +2746,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2756,7 +2756,7 @@ EXPLAIN SELECT STRAIGHT_JOIN SQL_NO_CACHE COUNT(*) FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b b 5 NULL 2 Using index -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) SELECT STRAIGHT_JOIN SQL_NO_CACHE * FROM t2, t1 WHERE t1.b = t2.b OR t2.b IS NULL; a b a b 1 NULL 1 1 @@ -2910,11 +2910,11 @@ EXPLAIN SELECT t1.a FROM t1 STRAIGHT_JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) EXPLAIN SELECT t1.a FROM t1 INNER JOIN t2 ON t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 -1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) DROP TABLE t1,t2; select x'10' + 0, X'10' + 0, b'10' + 0, B'10' + 0; x'10' + 0 X'10' + 0 b'10' + 0 B'10' + 0

=== modified file 'mysql-test/suite/pbxt/r/subselect.result' --- a/mysql-test/suite/pbxt/r/subselect.result 2010-10-02 16:46:27 +0000 +++ b/mysql-test/suite/pbxt/r/subselect.result 2010-10-08 19:30:16 +0000 @@ -906,7 +906,7 @@ 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 index -2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer +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`,(`test`.`t1`.`a`,<exists>(select 1 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 (`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; @@ -1296,7 +1296,7 @@ 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 +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); @@ -1306,7 +1306,7 @@ 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 +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); @@ -1316,7 +1316,7 @@ 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 +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`)) @@ -3554,7 +3554,7 @@ ORDER BY t1.t DESC LIMIT 1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 1 -1 PRIMARY t1 index NULL PRIMARY 16 NULL 11 Using where; Using index; Using join buffer +1 PRIMARY t1 index NULL PRIMARY 16 NULL 11 Using where; Using index; Using join buffer (flat, BNL join) 2 DEPENDENT SUBQUERY t1 ref PRIMARY PRIMARY 8 test.t2.i1,const 1 Using where; Using index; Using filesort SELECT * FROM t1,t2 WHERE t1.t = (SELECT t1.t FROM t1

=== modified file 'mysql-test/suite/pbxt/r/union.result' --- a/mysql-test/suite/pbxt/r/union.result 2009-12-16 09:28:51 +0000 +++ b/mysql-test/suite/pbxt/r/union.result 2010-10-08 19:30:16 +0000 @@ -500,7 +500,7 @@ 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 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index -2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index; Using join buffer +2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index; Using join buffer (flat, BNL join) NULL UNION RESULT ALL NULL NULL NULL NULL NULL explain (select * from t1 where a=1) union (select * from t1 where b=1); id select_type table type possible_keys key key_len ref rows Extra

=== modified file 'mysql-test/suite/vcol/r/vcol_misc.result' --- a/mysql-test/suite/vcol/r/vcol_misc.result 2010-10-02 16:46:27 +0000 +++ b/mysql-test/suite/vcol/r/vcol_misc.result 2010-10-08 19:30:16 +0000 @@ -10,7 +10,7 @@ select * from t1,t2 where t1.b=t2.c and d <= 100; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where -1 SIMPLE t2 ref idx idx 5 test.t1.b 2 Using where; Using join buffer +1 SIMPLE t2 ref idx idx 5 test.t1.b 2 Using where; Using join buffer (flat, BKA join) select * from t1,t2 where t1.b=t2.c and d <= 100; a b c d v 4 20 20 100 101

=== modified file 'mysql-test/suite/vcol/r/vcol_select_innodb.result' --- a/mysql-test/suite/vcol/r/vcol_select_innodb.result 2010-06-26 19:33:16 +0000 +++ b/mysql-test/suite/vcol/r/vcol_select_innodb.result 2010-10-08 19:30:16 +0000 @@ -64,7 +64,7 @@ explain select * from t1 where b in (select c from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t3 index c c 5 NULL 3 Using index -1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) # select_type=PRIMARY, type=range,ref select * from t1 where c in (select c from t3 where c between -2 and -1); a b c

=== modified file 'mysql-test/suite/vcol/r/vcol_select_myisam.result' --- a/mysql-test/suite/vcol/r/vcol_select_myisam.result 2010-06-26 19:33:16 +0000 +++ b/mysql-test/suite/vcol/r/vcol_select_myisam.result 2010-10-08 19:30:16 +0000 @@ -64,7 +64,7 @@ explain select * from t1 where b in (select c from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t3 index c c 5 NULL 3 Using index -1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer +1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) # select_type=PRIMARY, type=range,ref select * from t1 where c in (select c from t3 where c between -2 and -1); a b c

=== modified file 'sql/sql_join_cache.cc' --- a/sql/sql_join_cache.cc 2010-10-06 20:27:12 +0000 +++ b/sql/sql_join_cache.cc 2010-10-08 19:30:16 +0000 @@ -2372,6 +2372,54 @@ return rc; }

+ +/* + Add a comment on the join algorithm employed by the join cache + + SYNOPSIS + print_explain_comment() + str string to add the comment on the employed join algorithm to + + DESCRIPTION + This function adds info on the type of the used join buffer (flat or + incremental) and on the type of the the employed join algorithm (BNL, + BNLH, BKA or BKAH) to the the end of the sring str. + + RETURN VALUE + none +*/ + +void JOIN_CACHE::print_explain_comment(String *str) +{ + str->append(STRING_WITH_LEN(" (")); + const char *buffer_type= prev_cache ? "incremental" : "flat"; + str->append(buffer_type); + str->append(STRING_WITH_LEN(", ")); + + const char *join_alg; + switch (get_join_alg()) { + case BNL_JOIN_ALG: + join_alg= "BNL"; + break; + case BNLH_JOIN_ALG: + join_alg= "BNLH"; + break; + case BKA_JOIN_ALG: + join_alg= "BKA"; + break; + case BKAH_JOIN_ALG: + join_alg= "BKAH"; + break; + default: + DBUG_ASSERT(0); + } + + str->append(join_alg); + str->append(STRING_WITH_LEN(" join")); + str->append(STRING_WITH_LEN(")")); + } + + /* Initialize a hashed join cache

=== modified file 'sql/sql_select.cc' --- a/sql/sql_select.cc 2010-10-06 20:27:12 +0000 +++ b/sql/sql_select.cc 2010-10-08 19:30:16 +0000 @@ -7644,9 +7644,8 @@ case JT_ALL: if (cache_level == 1) prev_cache= 0; - if ((options & SELECT_DESCRIBE) || - (((tab->cache= new JOIN_CACHE_BNL(join, tab, prev_cache))) && - !tab->cache->init())) + if ((tab->cache= new JOIN_CACHE_BNL(join, tab, prev_cache)) && + ((options & SELECT_DESCRIBE) || !tab->cache->init())) { *icp_other_tables_ok= FALSE; return (2-test(!prev_cache)); @@ -7670,9 +7669,8 @@ { if (cache_level == 3) prev_cache= 0; - if ((options & SELECT_DESCRIBE) || - ((tab->cache= new JOIN_CACHE_BNLH(join, tab, prev_cache)) && - !tab->cache->init())) + if ((tab->cache= new JOIN_CACHE_BNLH(join, tab, prev_cache)) && + ((options & SELECT_DESCRIBE) || !tab->cache->init())) { *icp_other_tables_ok= FALSE; return (4-test(!prev_cache)); @@ -7692,9 +7690,8 @@ { if (cache_level == 5) prev_cache= 0; - if ((options & SELECT_DESCRIBE) || - ((tab->cache= new JOIN_CACHE_BKA(join, tab, flags, prev_cache)) && - !tab->cache->init())) + if ((tab->cache= new JOIN_CACHE_BKA(join, tab, flags, prev_cache)) && + ((options & SELECT_DESCRIBE) || !tab->cache->init())) return (6-test(!prev_cache)); goto no_join_cache; } @@ -7702,9 +7699,8 @@ { if (cache_level == 7) prev_cache= 0; - if ((options & SELECT_DESCRIBE) || - ((tab->cache= new JOIN_CACHE_BKAH(join, tab, flags, prev_cache)) && - !tab->cache->init())) + if ((tab->cache= new JOIN_CACHE_BKAH(join, tab, flags, prev_cache)) && + ((options & SELECT_DESCRIBE) || !tab->cache->init())) { *idx_cond_fact_out= FALSE; return (8-test(!prev_cache)); @@ -18923,8 +18919,11 @@ } }

- if (i > 0 && tab[-1].next_select == sub_select_cache) + if (tab->cache) + { extra.append(STRING_WITH_LEN("; Using join buffer")); + tab->cache->print_explain_comment(&extra); + }

/* Skip initial "; "*/ const char *str= extra.ptr();

=== modified file 'sql/sql_select.h' --- a/sql/sql_select.h 2010-10-06 20:27:12 +0000 +++ b/sql/sql_select.h 2010-10-08 19:30:16 +0000 @@ -885,7 +885,50 @@ /* Check matching to a partial join record from the join buffer */ bool check_match(uchar *rec_ptr);

+ /* + This constructor creates an unlinked join cache. The cache is to be + used to join table 'tab' to the result of joining the previous tables + specified by the 'j' parameter. + */ + JOIN_CACHE(JOIN *j, JOIN_TAB *tab) + { + join= j; + join_tab= tab; + prev_cache= next_cache= 0; + buff= 0; + } + + /* + This constructor creates a linked join cache. The cache is to be + used to join table 'tab' to the result of joining the previous tables + specified by the 'j' parameter. The parameter 'prev' specifies the previous + cache object to which this cache is linked. + */ + JOIN_CACHE(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) + { + join= j; + join_tab= tab; + next_cache= 0; + prev_cache= prev; + buff= 0; + if (prev) + prev->next_cache= this; + } + public: + + /* + The enumeration type Join_algorithm includes a mnemonic constant for + each join algorithm that employs join buffers + */ + + enum Join_algorithm + { + BNL_JOIN_ALG, /* Block Nested Loop Join algorithm */ + BNLH_JOIN_ALG, /* Block Nested Loop Hash Join algorithm */ + BKA_JOIN_ALG, /* Batched Key Access Join algorithm */ + BKAH_JOIN_ALG, /* Batched Key Access with Hash Table Join Algorithm */ + };

/* The enumeration type Match_flag describes possible states of the match flag @@ -926,6 +969,9 @@ /* Shrink the size if the cache join buffer in a given ratio */ bool shrink_join_buffer_in_ratio(ulonglong n, ulonglong d);

+ /* Shall return the type of the employed join algorithm */ + virtual enum Join_algorithm get_join_alg()= 0; + /* The function shall return TRUE only when there is a key access to the join table @@ -971,6 +1017,9 @@ /* Join records from the join buffer with records from the next join table */ enum_nested_loop_state join_records(bool skip_last);

+ /* Add a comment on the join algorithm employed by the join cache */ + void print_explain_comment(String *str); + virtual ~JOIN_CACHE() {} void reset_join(JOIN *j) { join= j; } void free() @@ -1241,6 +1290,22 @@ /* Reallocate the join buffer of a hashed join cache */ int realloc_buffer();

+ /* + This constructor creates an unlinked hashed join cache. The cache is to be + used to join table 'tab' to the result of joining the previous tables + specified by the 'j' parameter. + */ + JOIN_CACHE_HASHED(JOIN *j, JOIN_TAB *tab) :JOIN_CACHE(j, tab) {} + + /* + This constructor creates a linked hashed join cache. The cache is to be + used to join table 'tab' to the result of joining the previous tables + specified by the 'j' parameter. The parameter 'prev' specifies the previous + cache object to which this cache is linked. + */ + JOIN_CACHE_HASHED(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) + :JOIN_CACHE(j, tab, prev) {} + public:

/* Initialize a hashed join cache */ @@ -1368,12 +1433,7 @@ used to join table 'tab' to the result of joining the previous tables specified by the 'j' parameter. */ - JOIN_CACHE_BNL(JOIN *j, JOIN_TAB *tab) - { - join= j; - join_tab= tab; - prev_cache= next_cache= 0; - } + JOIN_CACHE_BNL(JOIN *j, JOIN_TAB *tab) :JOIN_CACHE(j, tab) {}

/* This constructor creates a linked BNL join cache. The cache is to be @@ -1381,19 +1441,14 @@ specified by the 'j' parameter. The parameter 'prev' specifies the previous cache object to which this cache is linked. */ - JOIN_CACHE_BNL(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) - { - join= j; - join_tab= tab; - prev_cache= prev; - next_cache= 0; - if (prev) - prev->next_cache= this; - } + JOIN_CACHE_BNL(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) + :JOIN_CACHE(j, tab, prev) {}

/* Initialize the BNL cache */ int init();

+ enum Join_algorithm get_join_alg() { return BNL_JOIN_ALG; } + bool is_key_access() { return FALSE; }

}; @@ -1445,12 +1500,7 @@ used to join table 'tab' to the result of joining the previous tables specified by the 'j' parameter. */ - JOIN_CACHE_BNLH(JOIN *j, JOIN_TAB *tab) - { - join= j; - join_tab= tab; - prev_cache= next_cache= 0; - } + JOIN_CACHE_BNLH(JOIN *j, JOIN_TAB *tab) : JOIN_CACHE_HASHED(j, tab) {}

/* This constructor creates a linked BNLH join cache. The cache is to be @@ -1458,19 +1508,14 @@ specified by the 'j' parameter. The parameter 'prev' specifies the previous cache object to which this cache is linked. */ - JOIN_CACHE_BNLH(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) - { - join= j; - join_tab= tab; - prev_cache= prev; - next_cache= 0; - if (prev) - prev->next_cache= this; - } + JOIN_CACHE_BNLH(JOIN *j, JOIN_TAB *tab, JOIN_CACHE *prev) + : JOIN_CACHE_HASHED(j, tab, prev) {}

/* Initialize the BNLH cache */ int init();

+ enum Join_algorithm get_join_alg() { return BNLH_JOIN_ALG; } + bool is_key_access() { return TRUE; }

}; @@ -1583,13 +1628,7 @@ The MRR mode initially is set to 'flags'. */ JOIN_CACHE_BKA(JOIN *j, JOIN_TAB *tab, uint flags) - { - join= j; - join_tab= tab; - prev_cache= next_cache= 0; - mrr_mode= flags; - } - + :JOIN_CACHE(j, tab), mrr_mode(flags) {} /* This constructor creates a linked BKA join cache. The cache is to be used to join table 'tab' to the result of joining the previous tables @@ -1598,21 +1637,15 @@ The MRR mode initially is set to 'flags'. */ JOIN_CACHE_BKA(JOIN *j, JOIN_TAB *tab, uint flags, JOIN_CACHE *prev) - { - join= j; - join_tab= tab; - prev_cache= prev; - next_cache= 0; - if (prev) - prev->next_cache= this; - mrr_mode= flags; - } + :JOIN_CACHE(j, tab, prev), mrr_mode(flags) {}

uchar **get_curr_association_ptr() { return &curr_association; }

/* Initialize the BKA cache */ int init();

+ enum Join_algorithm get_join_alg() { return BKA_JOIN_ALG; } + bool is_key_access() { return TRUE; }

/* Get the key built over the next record from the join buffer */ @@ -1688,10 +1721,8 @@ specified by the 'j' parameter. The MRR mode initially is set to 'flags'. */ - JOIN_CACHE_BKAH(JOIN *j, JOIN_TAB *tab, uint flags) :JOIN_CACHE_BNLH(j, tab) - { - mrr_mode= flags; - } + JOIN_CACHE_BKAH(JOIN *j, JOIN_TAB *tab, uint flags) + :JOIN_CACHE_BNLH(j, tab), mrr_mode(flags) {}

/* This constructor creates a linked BKAH join cache. The cache is to be @@ -1701,16 +1732,15 @@ The MRR mode initially is set to 'flags'. */ JOIN_CACHE_BKAH(JOIN *j, JOIN_TAB *tab, uint flags, JOIN_CACHE *prev) - :JOIN_CACHE_BNLH(j, tab, prev) - { - mrr_mode= flags; - } + :JOIN_CACHE_BNLH(j, tab, prev), mrr_mode(flags) {}

uchar **get_curr_association_ptr() { return &curr_matching_chain; }

/* Initialize the BKAH cache */ int init();

+ enum Join_algorithm get_join_alg() { return BKAH_JOIN_ALG; } + /* Check index condition of the joined table for a record from BKAH cache */ bool skip_index_tuple(char *range_info); };

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-- BR Sergey -- Sergey Petrunia, Software Developer Monty Program AB, http://askmonty.org Blog: http://s.petrunia.net/blog