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Sticky:  Unofficial MySQL 8.0 Optimizer Guide (1 Posts)   19 Edwin Desouza 02/13/2017 04:16PM
Sticky:  MySQL 8.0: Window Functions (1 Posts)   43 Edwin Desouza 02/04/2017 08:57PM
Sticky:  MySQL 8.0: CTEs (1 Posts)   343 Edwin Desouza 10/18/2016 09:38AM
Sticky:  MySQL 8.0: Optimizer & Parser (1 Posts)   332 Edwin Desouza 09/13/2016 10:54AM
Sticky:  MySQL Performance Tuning (1 Posts)   1,191 Edwin Desouza 07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)   1,839 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   3,230 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   3,776 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   9,283 Edwin DeSouza 04/28/2007 06:20PM
Improve search when using IN() ORDER BY PRIMARY and LIMIT   48 jon sans 02/11/2017 07:17AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT   10 jon sans 02/11/2017 07:29AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT   9 Øystein Grøvlen 02/13/2017 05:58AM
MySQL Performance Tuning: Optimizer Hints   47 Edwin Desouza 02/04/2017 09:09PM
Hiw to fast delete rows from table in relation?   84 Andrzej Borucki 01/22/2017 02:21AM
Re: Hiw to fast delete rows from table in relation?   35 Andrzej Borucki 01/22/2017 03:39AM
Re: Hiw to fast delete rows from table in relation?   52 Andrzej Borucki 01/22/2017 04:03AM
Query not always using indexes   131 K DBA 01/06/2017 05:48AM
Re: Query not always using indexes   58 Peter Brawley 01/06/2017 12:28PM
Re: Query not always using indexes   95 K DBA 01/09/2017 05:18AM
Re: Query not always using indexes   77 Øystein Grøvlen 01/09/2017 02:30AM
Optimize subquery, replace IN() with JOIN   236 Miron jajtic 11/15/2016 02:37PM
Re: Optimize subquery, replace IN() with JOIN   130 Peter Brawley 11/15/2016 03:34PM
Re: Optimize subquery, replace IN() with JOIN   121 Miron jajtic 11/15/2016 04:25PM
Re: Optimize subquery, replace IN() with JOIN   124 Rick James 11/17/2016 08:11PM
Re: Optimize subquery, replace IN() with JOIN   113 Peter Brawley 11/22/2016 02:44PM
Re: Optimize subquery, replace IN() with JOIN   116 Miron jajtic 11/16/2016 04:03AM
Re: Optimize subquery, replace IN() with JOIN   108 Peter Brawley 11/16/2016 12:51PM
Re: Optimize subquery, replace IN() with JOIN   124 Miron jajtic 11/16/2016 03:22PM
Re: Optimize subquery, replace IN() with JOIN   126 Peter Brawley 11/16/2016 04:44PM
Re: Optimize subquery, replace IN() with JOIN   78 sahar gull 12/27/2016 05:32AM
Re: Optimize subquery, replace IN() with JOIN   116 Øystein Grøvlen 11/16/2016 01:50AM
Re: Optimize subquery, replace IN() with JOIN   107 Miron jajtic 11/16/2016 04:01AM
Re: Optimize subquery, replace IN() with JOIN   136 Øystein Grøvlen 11/16/2016 06:23AM
Improved Query Performance by Using Derived Table instead of IN-subquery   115 Edwin Desouza 12/23/2016 08:50AM
primary key vs covered index   184 marcin kot 11/30/2016 09:55AM
Re: primary key vs covered index   124 Øystein Grøvlen 12/01/2016 01:39AM
Re: primary key vs covered index   134 marcin kot 12/01/2016 03:38AM
Re: primary key vs covered index   118 Øystein Grøvlen 12/01/2016 03:57AM
Re: primary key vs covered index   104 marcin kot 12/01/2016 04:16AM
Re: primary key vs covered index   143 Øystein Grøvlen 12/01/2016 04:25AM
MySQL 8.0: Refactoring and Improving the Parser   217 Edwin Desouza 11/22/2016 10:58AM
MySQL subquery   273 harry sheng 10/27/2016 02:51PM
Re: MySQL subquery   124 Øystein Grøvlen 10/28/2016 01:03AM
Re: MySQL subquery   136 harry sheng 11/06/2016 08:50PM
Re: MySQL subquery   124 Øystein Grøvlen 11/07/2016 01:39AM
How to Analyze and Tune MySQL Queries for Better Performance   235 Edwin Desouza 10/21/2016 09:58AM
Index on timestamp   290 Adeline M 10/14/2016 08:47AM
Re: Index on timestamp   148 Rick James 10/16/2016 04:40PM
MySQL 8.0: Descending Indexes   317 Edwin Desouza 10/12/2016 10:00AM
Pivot table with dynamic columns   394 Aram Mirzadeh 09/30/2016 06:03PM
Re: Pivot table with dynamic columns   187 Rick James 10/03/2016 03:40PM
inner join vs left join - huge performance difference   365 michael cook 07/06/2016 09:32AM
Re: inner join vs left join - huge performance difference   180 Peter Brawley 07/06/2016 12:00PM
Re: inner join vs left join - huge performance difference   141 michael cook 07/06/2016 12:18PM
Re: inner join vs left join - huge performance difference   142 michael cook 07/06/2016 12:29PM
Re: inner join vs left join - huge performance difference   140 Peter Brawley 07/06/2016 12:36PM
Re: inner join vs left join - huge performance difference   165 michael cook 07/06/2016 12:44PM
Re: inner join vs left join - huge performance difference   130 michael cook 07/06/2016 01:51PM
Re: inner join vs left join - huge performance difference   148 Peter Brawley 07/06/2016 02:32PM
Re: inner join vs left join - huge performance difference   144 michael cook 07/06/2016 02:41PM
Re: inner join vs left join - huge performance difference   143 Rick James 07/08/2016 11:58PM
Re: inner join vs left join - huge performance difference   146 Peter Brawley 07/09/2016 09:54AM
Re: inner join vs left join - huge performance difference   152 Isabella Swan 09/27/2016 07:13AM
This topic has been moved.:  INSERT AfTER LEFT JOIN creates duplicate records   10 Brad Liu 09/20/2016 02:09PM
MySQL 8.0: Invisible Indexes   278 Edwin Desouza 09/20/2016 09:21AM
Preparse Query Rewrite Plugin DLL   526 Francois Haddad 08/12/2016 05:16PM
Re: Preparse Query Rewrite Plugin DLL   168 Georgi Kodinov 09/08/2016 02:23AM
Re: Preparse Query Rewrite Plugin DLL   196 Francois Haddad 09/14/2016 07:04PM
Re: Preparse Query Rewrite Plugin DLL   174 Tor Didriksen 09/15/2016 01:40AM
Re: Preparse Query Rewrite Plugin DLL   186 Francois Haddad 09/15/2016 11:34AM
why the two query has a different execute plan?   488 h h 08/22/2016 02:55AM
Re: why the two query has a different execute plan?   183 Øystein Grøvlen 08/22/2016 05:08AM
Re: why the two query has a different execute plan?   168 Rick James 08/26/2016 02:29PM
This topic has been moved.:  Preparse Query Rewrite Plugin DLL   159 Francois Haddad 08/15/2016 09:28AM
how to optimize this sql?   350 h h 07/07/2016 07:38PM
Re: how to optimize this sql?   213 Peter Brawley 07/08/2016 10:59AM
Re: how to optimize this sql?   198 h h 07/12/2016 09:01PM
Re: how to optimize this sql?   202 Rick James 07/09/2016 11:04PM
Re: how to optimize this sql?   197 h h 07/12/2016 09:08PM
Re: how to optimize this sql?   187 Rick James 07/14/2016 12:52PM
Indexing for date column for range query   405 duc minh 07/05/2016 11:04PM
Re: Indexing for date column for range query   205 Rick James 07/09/2016 10:47PM
Help with partially unique index   467 El T 06/22/2016 04:44AM
Re: Help with partially unique index   227 Rick James 06/25/2016 10:45PM
Re: Help with partially unique index   209 El T 07/02/2016 03:33PM
Re: Help with partially unique index   203 Rick James 07/04/2016 12:50PM
Explain plans for InnoDB and Memory Engines   513 Jagan Kumar 05/02/2016 03:15PM
Re: Explain plans for InnoDB and Memory Engines   255 Peter Brawley 05/02/2016 09:23PM
Re: Explain plans for InnoDB and Memory Engines   248 Øystein Grøvlen 05/04/2016 05:17AM
Re: Explain plans for InnoDB and Memory Engines   256 Rick James 05/05/2016 10:18PM
MySQL Query Rewrite Plugins   616 Edwin Desouza 02/02/2016 09:48PM
why left join can not use unique index?   1,058 h h 12/07/2015 08:30PM
Re: why left join can not use unique index?   395 Rick James 12/08/2015 08:46PM
Re: why left join can not use unique index?   384 h h 12/11/2015 03:20AM
Re: why left join can not use unique index?   392 Rick James 12/15/2015 11:08AM
This topic has been moved.:  A stored function to remove diacritics and other chars   20 Marc Elbet 12/11/2015 03:50AM
prepared statement query takes 3s for a few hundred lines - query issue   753 Michael W. 11/16/2015 11:14AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   358 Rick James 11/30/2015 08:09PM
Re: prepared statement query takes 3s for a few hundred lines - query issue   423 Michael W. 12/01/2015 07:10AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   372 Rick James 12/07/2015 01:17AM
Why not use index   848 zhang peng 11/08/2015 11:14PM
Re: Why not use index   389 Peter Brawley 11/09/2015 11:42AM
Re: Why not use index   431 zhang peng 11/11/2015 12:17AM
Re: Why not use index   378 Øystein Grøvlen 11/10/2015 10:35AM
Re: Why not use index   415 zhang peng 11/11/2015 12:15AM
Re: Why not use index   385 Øystein Grøvlen 11/11/2015 03:40AM
Re: Why not use index   388 zhang peng 11/11/2015 07:29PM
Re: Why not use index   409 Peter Brawley 11/11/2015 11:00PM
Re: Why not use index   376 Øystein Grøvlen 11/12/2015 01:48AM
Re: Why not use index   399 zhang peng 11/16/2015 12:17AM
Google Update Optimizer system   768 Anik Bhowmik 11/09/2015 09:35PM
Re: Google Update Optimizer system   390 Peter Brawley 11/09/2015 10:12PM
Re: Google Update Optimizer system   379 Jonathan Stephens 11/10/2015 01:02AM
Normalize dump table   1,079 Jose Valle 10/11/2015 08:37PM
Re: Normalize dump table   367 Jose Valle 10/11/2015 08:42PM
Re: Normalize dump table   397 Antonio Valle 10/13/2015 01:41PM
Re: Normalize dump table   395 Rick James 10/17/2015 07:15PM
optimize query for index using between and group by   1,115 Raghavendra raghu 08/28/2015 03:21AM
Re: optimize query for index using between and group by   610 Rick James 08/29/2015 09:56AM
Re: optimize query for index using between and group by   471 Raghavendra raghu 08/31/2015 02:34AM
Parsing in MySQL Workbench: the ANTLR age   896 Edwin Desouza 08/14/2015 10:16AM
MySQL Optimizer: Hints   1,107 Edwin Desouza 07/29/2015 10:07AM
Index not working for date field used in between query   1,398 Shrinivasa rao 07/22/2015 11:48PM
Re: Index not working for date field used in between query   628 Rick James 07/26/2015 08:28AM
MyISAM using 'wrong' index   1,045 Danny Stommen 06/08/2015 04:14AM
Re: MyISAM using 'wrong' index   552 Rick James 06/09/2015 11:53PM
Re: MyISAM using 'wrong' index   572 Danny Stommen 06/30/2015 03:22AM
Re: MyISAM using 'wrong' index   564 Rick James 07/02/2015 09:28PM
Re: MyISAM using 'wrong' index   527 Danny Stommen 07/03/2015 03:16AM
Re: MyISAM using 'wrong' index   594 Rick James 07/04/2015 11:10AM
Re: MyISAM using 'wrong' index   524 Danny Stommen 07/07/2015 01:56AM
Re: MyISAM using 'wrong' index   508 Edwin Desouza 07/07/2015 09:10AM
Need help understanding optimizer behavior in 5.6   1,193 Aaron Craven 06/22/2015 08:30AM
Re: Need help understanding optimizer behavior in 5.6   580 Aaron Craven 06/22/2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6   520 Rick James 06/23/2015 07:00PM
Re: Need help understanding optimizer behavior in 5.6   515 Aaron Craven 06/24/2015 06:22AM
Re: Need help understanding optimizer behavior in 5.6   510 Rick James 06/25/2015 11:37PM
Re: Need help understanding optimizer behavior in 5.6   515 Aaron Craven 06/26/2015 06:56AM
Re: Need help understanding optimizer behavior in 5.6   501 Øystein Grøvlen 06/30/2015 05:46AM
Re: Need help understanding optimizer behavior in 5.6   725 Aaron Craven 06/30/2015 08:06AM
Re: Need help understanding optimizer behavior in 5.6   529 Aaron Craven 06/30/2015 08:16AM
Re: Need help understanding optimizer behavior in 5.6   512 Øystein Grøvlen 07/01/2015 03:49AM
Re: Need help understanding optimizer behavior in 5.6   496 Aaron Craven 07/01/2015 06:48AM
Re: Need help understanding optimizer behavior in 5.6   560 Edwin Desouza 07/01/2015 03:05PM
Re: Need help understanding optimizer behavior in 5.6   532 Aaron Craven 07/02/2015 07:48AM
MySQL 5.7: Optimizer Trace and EXPLAIN FORMAT=JSON   1,185 Edwin Desouza 05/25/2015 10:41AM
foreign key creation in a huge database   1,176 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   631 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   1,445 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   678 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   611 Rick James 03/04/2015 08:18PM
Query optimisation advice   1,441 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   778 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   737 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   703 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   1,382 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   716 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   737 Rick James 12/12/2014 08:36PM
MySQL cash optimization   1,536 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   842 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   648 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   633 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   1,455 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   869 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   860 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   1,435 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   1,509 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   738 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   756 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   1,397 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   1,545 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   1,493 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   1,791 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   842 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   1,008 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   1,636 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   839 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   769 Øystein Grøvlen 08/28/2014 03:47PM
This topic has been moved.:  Improve search when using IN() ORDER BY PRIMARY and LIMIT   0 jon sans 02/11/2017 01:36PM
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