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[Maria-developers] New KB Question: Does MariaDB support IPV6?
by Daniel Bartholomew 01 Oct '10

01 Oct '10

Here's a question that was posted yesterday to the KB: Does MariaDB support IPV6? http://kb.askmonty.org/v/does-mariadb-support-ipv6 Thanks. -- Daniel Bartholomew Monty Program - http://askmonty.org

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[Maria-developers] Release Notes for mariadb-5.2.2-gamma
by Daniel Bartholomew 29 Sep '10

29 Sep '10

All, I'm preparing the release notes for MariaDB 5.2.2 Gamma. Is there anything in particular I should mention? As usual I'll be picking stuff out of the changelog to put into the release notes, but if there's something I should make sure to mention, let me know. Thanks. -- Daniel Bartholomew Monty Program - http://askmonty.org

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[Maria-developers] WL#150 New (by Sergei): Phone home: more data
by worklog-noreply＠askmonty.org 26 Sep '10

26 Sep '10

----------------------------------------------------------------------- WORKLOG TASK -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- TASK...........: Phone home: more data CREATION DATE..: Sun, 26 Sep 2010, 13:54 SUPERVISOR.....: IMPLEMENTOR....: COPIES TO......: Sergei CATEGORY.......: Server-RawIdeaBin TASK ID........: 150 (http://askmonty.org/worklog/?tid=150) VERSION........: Server-5.3 STATUS.........: Un-Assigned PRIORITY.......: 60 WORKED HOURS...: 0 ESTIMATE.......: 0 (hours remain) ORIG. ESTIMATE.: 0 PROGRESS NOTES: DESCRIPTION: This task is about collecting more information in the server (and presenting it via status variables or somehow) that is useful for phone home feature. ESTIMATED WORK TIME ESTIMATED COMPLETION DATE ----------------------------------------------------------------------- WorkLog (v4.0.0)

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[Maria-developers] Testing a query/subquery in various contexts
by Philip Stoev 24 Sep '10

24 Sep '10

Hello, It is known that the MySQL codebase suffers from numerous unforseen interactions between components, so that if we have a query X that works when executed stand-alone, it may still break if it is executed as, for example, INSERT ... SELECT . So, the Random Query Generator has a module that runs each generated query into different contexts. Here is the current list: - as CREATE|INSERT|REPLACE ... SELECT - as a prepared statement, twice - as a stored procedure, twice - as a UNION - converted into a VIEW The question is, what else is missing? I know about the following: - DELETE/UPDATE, etc. operations that involve the query as a subquery - triggers but what about trying to evaluate the query inside an IF, CASE, FOR , or anything else? If you have any suspicion that any of the code handles a particular situation or context differently, please let me know so that I can add it to the RQG. Thank you. Philip Stoev

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[Maria-developers] MySQL 6.0 branches on launchpad
by Kristian Nielsen 24 Sep '10

24 Sep '10

Hi, As you know, MySQL is no longer working on the old MySQL 6.0 codebase. I noticed that the mysql-6.0-backup and mysql-6.0-codebase trees are no longer in ~mysql-server on Launchpad. Since there has been talk about backporting from 6.0 the backup and/or other features not yet in MySQL 5.5/5.6, I thought it might be useful for people to still have easy access to these trees, so I pushed them to ~maria on Launchpad: lp:~maria-captains/maria/mysql-6.0-backup lp:~maria-captains/maria/mysql-6.0-codebase - Kristian.

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[Maria-developers] Removing very old options for --old, --new, --safe-mode
by Michael Widenius 23 Sep '10

23 Sep '10

Hi! I did notice that we haven't cleaned up the usage of the --old, --new, --safe-mode and --skip-new options in a long time. Here is a cleanup of this for MariaDB 5.2 (soon to be made gamma). After this suggested change, here is how the options would work: --new Use new functionality that will exist in next version of MariaDB. This function exist to make it easier to prepare for an upgrade. For version 5.1 this functions enables the LIST and RANGE partitions functions for ndbcluster. --old Use compatible behavior with previous main version for some functionality. For MariaDB 5.1 this means that we are using the old, MySQL 5.1 compatible, way to calculate checksums for records. If you are using --old, CHECKSUM TABLE will always do a full table scan. --safe_mode Disable some potential unsafe optimization. For 5.2 these are: INSERT DELAYED is disabled, myisam_recover_options is set to DEFAULT (automatically recover crashed MyISAM files). For Aria table, disable bulk insert optimization to enable one to use maria_read_log to recover tables even if tables are deleted (good for testing recovery). --skip-new Skip some new potentially unsafe functions. For 5.2 these are: INSERT DELAYED is disabled, Query cache size is reset. Here is the patch against MariaDB 5.2: === modified file 'sql/field.cc' --- sql/field.cc 2010-08-05 19:56:11 +0000 +++ sql/field.cc 2010-09-14 15:45:01 +0000 @@ -6703,8 +6703,7 @@ void Field_string::sql_type(String &res) length= cs->cset->snprintf(cs,(char*) res.ptr(), res.alloced_length(), "%s(%d)", - ((type() == MYSQL_TYPE_VAR_STRING && - !thd->variables.new_mode) ? + (type() == MYSQL_TYPE_VAR_STRING ? (has_charset() ? "varchar" : "varbinary") : (has_charset() ? "char" : "binary")), (int) field_length / charset()->mbmaxlen); === modified file 'sql/item_cmpfunc.cc' --- sql/item_cmpfunc.cc 2010-08-05 19:56:11 +0000 +++ sql/item_cmpfunc.cc 2010-09-14 16:41:01 +0000 @@ -4683,8 +4683,7 @@ bool Item_func_like::fix_fields(THD *thd We could also do boyer-more for non-const items, but as we would have to recompute the tables for each row it's not worth it. */ - if (args[1]->const_item() && !use_strnxfrm(collation.collation) && - !(specialflag & SPECIAL_NO_NEW_FUNC)) + if (args[1]->const_item() && !use_strnxfrm(collation.collation)) { String* res2 = args[1]->val_str(&cmp.value2); if (!res2) === modified file 'sql/mysqld.cc' --- sql/mysqld.cc 2010-08-24 22:44:50 +0000 +++ sql/mysqld.cc 2010-09-14 16:40:09 +0000 @@ -8725,11 +8725,7 @@ mysqld_get_one_option(int optid, case (int) OPT_SKIP_NEW: opt_specialflag|= SPECIAL_NO_NEW_FUNC; delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE; - myisam_concurrent_insert=0; - myisam_recover_options= HA_RECOVER_NONE; - sp_automatic_privileges=0; - my_use_symdir=0; - ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE); + ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE); #ifdef HAVE_QUERY_CACHE query_cache_size=0; #endif === modified file 'sql/records.cc' --- sql/records.cc 2010-07-17 19:58:08 +0000 +++ sql/records.cc 2010-09-14 16:40:09 +0000 @@ -216,7 +216,6 @@ bool init_read_record(READ_RECORD *info, */ if (!disable_rr_cache && !table->sort.addon_field && - ! (specialflag & SPECIAL_SAFE_MODE) && thd->variables.read_rnd_buff_size && !(table->file->ha_table_flags() & HA_FAST_KEY_READ) && (table->db_stat & HA_READ_ONLY || === modified file 'sql/sql_delete.cc' --- sql/sql_delete.cc 2010-08-05 19:56:11 +0000 +++ sql/sql_delete.cc 2010-09-14 16:40:10 +0000 @@ -130,7 +130,6 @@ bool mysql_delete(THD *thd, TABLE_LIST * - there should be no delete triggers associated with the table. */ if (!using_limit && const_cond_result && - !(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)) && (thd->lex->sql_command == SQLCOM_TRUNCATE || (!thd->current_stmt_binlog_row_based && !(table->triggers && table->triggers->has_delete_triggers())))) === modified file 'sql/sql_parse.cc' --- sql/sql_parse.cc 2010-08-05 19:56:11 +0000 +++ sql/sql_parse.cc 2010-09-14 16:40:09 +0000 @@ -3086,9 +3086,7 @@ end_with_restore_list: goto error; /* purecov: inspected */ thd->enable_slow_log= opt_log_slow_admin_statements; thd->query_plan_flags|= QPLAN_ADMIN; - res= (specialflag & (SPECIAL_SAFE_MODE | SPECIAL_NO_NEW_FUNC)) ? - mysql_recreate_table(thd, first_table) : - mysql_optimize_table(thd, first_table, &lex->check_opt); + res= mysql_optimize_table(thd, first_table, &lex->check_opt); /* ! we write after unlocking the table */ if (!res && !lex->no_write_to_binlog) { === modified file 'sql/sql_select.cc' --- sql/sql_select.cc 2010-08-24 22:44:50 +0000 +++ sql/sql_select.cc 2010-09-14 16:39:57 +0000 @@ -7187,8 +7187,6 @@ eq_ref_table(JOIN *join, ORDER *start_or static bool only_eq_ref_tables(JOIN *join,ORDER *order,table_map tables) { - if (specialflag & SPECIAL_SAFE_MODE) - return 0; // skip this optimize /* purecov: inspected */ tables&= ~PSEUDO_TABLE_BITS; for (JOIN_TAB **tab=join->map2table ; tables ; tab++, tables>>=1) { ------------- Any comments ? Regards, Monty

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Re: [Maria-developers] [Commits] Rev 2939: Fixed bug #53161. in file:///home/igor/maria/maria-5.1-bug53161/
by Oleksandr Byelkin 23 Sep '10

23 Sep '10

Hi! On 21.09.2010 07:22, igor(a)askmonty.org wrote: > At file:///home/igor/maria/maria-5.1-bug53161/ > > ------------------------------------------------------------ > revno: 2939 > revision-id: igor(a)askmonty.org-20100921042200-o52vwhnkz6kuwrcn > parent: monty(a)askmonty.org-20100915130103-x6i3x2mjc5gxsu77 > committer: Igor Babaev<igor(a)askmonty.org> > branch nick: maria-5.1-bug53161 > timestamp: Mon 2010-09-20 21:22:00 -0700 > message: > Fixed bug #53161. > The implementation of the virtual method not_null_tables for the class > Item_outer_ref must always return 0. > Patch looks OK, thanks.

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[Maria-developers] DS-MRR improvements patch r2 ready for review
by Sergey Petrunya 21 Sep '10

21 Sep '10

Hello Igor, Please find attached the combined patch that addresses all of the review feedback. The tree is in launchpad and buildbot also: https://code.launchpad.net/~maria-captains/maria/5.3-dsmrr-cpk BR Sergey -- Sergey Petrunia, Software Developer Monty Program AB, http://askmonty.org Blog: http://s.petrunia.net/blog

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[Maria-developers] WL#149 New (by Dreas): Add inet6_ntop() and inet6_pton()
by worklog-noreply＠askmonty.org 20 Sep '10

20 Sep '10

----------------------------------------------------------------------- WORKLOG TASK -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- TASK...........: Add inet6_ntop() and inet6_pton() CREATION DATE..: Mon, 20 Sep 2010, 13:38 SUPERVISOR.....: IMPLEMENTOR....: COPIES TO......: CATEGORY.......: Server-RawIdeaBin TASK ID........: 149 (http://askmonty.org/worklog/?tid=149) VERSION........: WorkLog-4.0 STATUS.........: Un-Assigned PRIORITY.......: 60 WORKED HOURS...: 0 ESTIMATE.......: 0 (hours remain) ORIG. ESTIMATE.: 0 PROGRESS NOTES: DESCRIPTION: It would be nice if this is supported by MariaDB 5.1. UDFs are available at http://labs.watchmouse.com/2009/10/extending-mysql-5-with-ipv6-functions/ ESTIMATED WORK TIME ESTIMATED COMPLETION DATE ----------------------------------------------------------------------- WorkLog (v4.0.0)

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[Maria-developers] online alter table in MariaDB?
by Zardosht Kasheff 19 Sep '10

19 Sep '10

Hello all, I saw the following on planet mysql today, http://www.facebook.com/note.php?note_id=430801045932, and it got me thinking. I remember at the 2010 storage engine summit, we discussed having more types of alter table be done online. Here are the meeting notes on that topic: Smarter "ALTER TABLE" Comment: Need to fix ALTER TABLE to fully support online operations. Jonas: This is already implemented, but currently only in the -telco cluster trees. Antony is willing to look into backporting new ALTER TABLE to MariaDB Does anyone know if any investigation has been done? I am curious to learn about people's findings. I have done a little poking at the mysql cluster code that has this feature, but I do not understand it well enough to know integration risk and complexity. Does anyone have any thoughts? I am curious to learn more. Thanks -Zardosht

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