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Subject Views Written By Posted
Sticky:  Unofficial MySQL 8.0 Optimizer Guide (1 Posts)   76 Edwin Desouza 02/13/2017 04:16PM
Sticky:  MySQL 8.0: Window Functions (1 Posts)   122 Edwin Desouza 02/04/2017 08:57PM
Sticky:  MySQL 8.0: CTEs (1 Posts)   401 Edwin Desouza 10/18/2016 09:38AM
Sticky:  MySQL 8.0: Optimizer & Parser (1 Posts)   409 Edwin Desouza 09/13/2016 10:54AM
Sticky:  MySQL Performance Tuning (1 Posts)   1,261 Edwin Desouza 07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)   1,910 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   3,280 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   3,825 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   9,338 Edwin DeSouza 04/28/2007 06:20PM
MySQL 5.7: What to Do When the Optimizer Overestimates the Condition Filtering Effect   17 Edwin Desouza 03/24/2017 11:30AM
prepare don't work for optimize statement   35 Long WU 03/22/2017 12:30AM
Re: prepare don't work for optimize statement   11 Øystein Grøvlen 03/22/2017 01:34AM
MySQL 5.7: Improved JOIN Order by Taking Condition Filter Effect into Account   34 Edwin Desouza 03/17/2017 02:49PM
Improve search when using IN() ORDER BY PRIMARY and LIMIT   112 jon sans 02/11/2017 07:17AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT   39 jon sans 02/11/2017 07:29AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT   46 Øystein Grøvlen 02/13/2017 05:58AM
MySQL Performance Tuning: Optimizer Hints   101 Edwin Desouza 02/04/2017 09:09PM
Hiw to fast delete rows from table in relation?   147 Andrzej Borucki 01/22/2017 02:21AM
Re: Hiw to fast delete rows from table in relation?   72 Andrzej Borucki 01/22/2017 03:39AM
Re: Hiw to fast delete rows from table in relation?   88 Andrzej Borucki 01/22/2017 04:03AM
Query not always using indexes   190 K DBA 01/06/2017 05:48AM
Re: Query not always using indexes   89 Peter Brawley 01/06/2017 12:28PM
Re: Query not always using indexes   148 K DBA 01/09/2017 05:18AM
Re: Query not always using indexes   127 Øystein Grøvlen 01/09/2017 02:30AM
Optimize subquery, replace IN() with JOIN   293 Miron jajtic 11/15/2016 02:37PM
Re: Optimize subquery, replace IN() with JOIN   161 Peter Brawley 11/15/2016 03:34PM
Re: Optimize subquery, replace IN() with JOIN   177 Miron jajtic 11/15/2016 04:25PM
Re: Optimize subquery, replace IN() with JOIN   151 Rick James 11/17/2016 08:11PM
Re: Optimize subquery, replace IN() with JOIN   139 Peter Brawley 11/22/2016 02:44PM
Re: Optimize subquery, replace IN() with JOIN   158 Miron jajtic 11/16/2016 04:03AM
Re: Optimize subquery, replace IN() with JOIN   146 Peter Brawley 11/16/2016 12:51PM
Re: Optimize subquery, replace IN() with JOIN   167 Miron jajtic 11/16/2016 03:22PM
Re: Optimize subquery, replace IN() with JOIN   161 Peter Brawley 11/16/2016 04:44PM
Re: Optimize subquery, replace IN() with JOIN   118 sahar gull 12/27/2016 05:32AM
Re: Optimize subquery, replace IN() with JOIN   147 Øystein Grøvlen 11/16/2016 01:50AM
Re: Optimize subquery, replace IN() with JOIN   142 Miron jajtic 11/16/2016 04:01AM
Re: Optimize subquery, replace IN() with JOIN   180 Øystein Grøvlen 11/16/2016 06:23AM
Improved Query Performance by Using Derived Table instead of IN-subquery   168 Edwin Desouza 12/23/2016 08:50AM
primary key vs covered index   251 marcin kot 11/30/2016 09:55AM
Re: primary key vs covered index   160 Øystein Grøvlen 12/01/2016 01:39AM
Re: primary key vs covered index   176 marcin kot 12/01/2016 03:38AM
Re: primary key vs covered index   163 Øystein Grøvlen 12/01/2016 03:57AM
Re: primary key vs covered index   132 marcin kot 12/01/2016 04:16AM
Re: primary key vs covered index   177 Øystein Grøvlen 12/01/2016 04:25AM
MySQL 8.0: Refactoring and Improving the Parser   280 Edwin Desouza 11/22/2016 10:58AM
MySQL subquery   341 harry sheng 10/27/2016 02:51PM
Re: MySQL subquery   153 Øystein Grøvlen 10/28/2016 01:03AM
Re: MySQL subquery   197 harry sheng 11/06/2016 08:50PM
Re: MySQL subquery   175 Øystein Grøvlen 11/07/2016 01:39AM
How to Analyze and Tune MySQL Queries for Better Performance   296 Edwin Desouza 10/21/2016 09:58AM
Index on timestamp   386 Adeline M 10/14/2016 08:47AM
Re: Index on timestamp   207 Rick James 10/16/2016 04:40PM
MySQL 8.0: Descending Indexes   416 Edwin Desouza 10/12/2016 10:00AM
Pivot table with dynamic columns   576 Aram Mirzadeh 09/30/2016 06:03PM
Re: Pivot table with dynamic columns   253 Rick James 10/03/2016 03:40PM
inner join vs left join - huge performance difference   509 michael cook 07/06/2016 09:32AM
Re: inner join vs left join - huge performance difference   237 Peter Brawley 07/06/2016 12:00PM
Re: inner join vs left join - huge performance difference   182 michael cook 07/06/2016 12:18PM
Re: inner join vs left join - huge performance difference   186 michael cook 07/06/2016 12:29PM
Re: inner join vs left join - huge performance difference   172 Peter Brawley 07/06/2016 12:36PM
Re: inner join vs left join - huge performance difference   216 michael cook 07/06/2016 12:44PM
Re: inner join vs left join - huge performance difference   169 michael cook 07/06/2016 01:51PM
Re: inner join vs left join - huge performance difference   189 Peter Brawley 07/06/2016 02:32PM
Re: inner join vs left join - huge performance difference   172 michael cook 07/06/2016 02:41PM
Re: inner join vs left join - huge performance difference   173 Rick James 07/08/2016 11:58PM
Re: inner join vs left join - huge performance difference   181 Peter Brawley 07/09/2016 09:54AM
Re: inner join vs left join - huge performance difference   192 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   333 Edwin Desouza 09/20/2016 09:21AM
Preparse Query Rewrite Plugin DLL   624 Francois Haddad 08/12/2016 05:16PM
Re: Preparse Query Rewrite Plugin DLL   203 Georgi Kodinov 09/08/2016 02:23AM
Re: Preparse Query Rewrite Plugin DLL   255 Francois Haddad 09/14/2016 07:04PM
Re: Preparse Query Rewrite Plugin DLL   214 Tor Didriksen 09/15/2016 01:40AM
Re: Preparse Query Rewrite Plugin DLL   245 Francois Haddad 09/15/2016 11:34AM
why the two query has a different execute plan?   603 h h 08/22/2016 02:55AM
Re: why the two query has a different execute plan?   213 Øystein Grøvlen 08/22/2016 05:08AM
Re: why the two query has a different execute plan?   197 Rick James 08/26/2016 02:29PM
This topic has been moved.:  Preparse Query Rewrite Plugin DLL   187 Francois Haddad 08/15/2016 09:28AM
how to optimize this sql?   408 h h 07/07/2016 07:38PM
Re: how to optimize this sql?   246 Peter Brawley 07/08/2016 10:59AM
Re: how to optimize this sql?   247 h h 07/12/2016 09:01PM
Re: how to optimize this sql?   236 Rick James 07/09/2016 11:04PM
Re: how to optimize this sql?   226 h h 07/12/2016 09:08PM
Re: how to optimize this sql?   218 Rick James 07/14/2016 12:52PM
Indexing for date column for range query   457 duc minh 07/05/2016 11:04PM
Re: Indexing for date column for range query   253 Rick James 07/09/2016 10:47PM
Help with partially unique index   544 El T 06/22/2016 04:44AM
Re: Help with partially unique index   262 Rick James 06/25/2016 10:45PM
Re: Help with partially unique index   244 El T 07/02/2016 03:33PM
Re: Help with partially unique index   243 Rick James 07/04/2016 12:50PM
Explain plans for InnoDB and Memory Engines   567 Jagan Kumar 05/02/2016 03:15PM
Re: Explain plans for InnoDB and Memory Engines   285 Peter Brawley 05/02/2016 09:23PM
Re: Explain plans for InnoDB and Memory Engines   274 Øystein Grøvlen 05/04/2016 05:17AM
Re: Explain plans for InnoDB and Memory Engines   284 Rick James 05/05/2016 10:18PM
MySQL Query Rewrite Plugins   663 Edwin Desouza 02/02/2016 09:48PM
why left join can not use unique index?   1,134 h h 12/07/2015 08:30PM
Re: why left join can not use unique index?   426 Rick James 12/08/2015 08:46PM
Re: why left join can not use unique index?   430 h h 12/11/2015 03:20AM
Re: why left join can not use unique index?   429 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   801 Michael W. 11/16/2015 11:14AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   386 Rick James 11/30/2015 08:09PM
Re: prepared statement query takes 3s for a few hundred lines - query issue   472 Michael W. 12/01/2015 07:10AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   399 Rick James 12/07/2015 01:17AM
Why not use index   904 zhang peng 11/08/2015 11:14PM
Re: Why not use index   421 Peter Brawley 11/09/2015 11:42AM
Re: Why not use index   466 zhang peng 11/11/2015 12:17AM
Re: Why not use index   410 Øystein Grøvlen 11/10/2015 10:35AM
Re: Why not use index   452 zhang peng 11/11/2015 12:15AM
Re: Why not use index   416 Øystein Grøvlen 11/11/2015 03:40AM
Re: Why not use index   434 zhang peng 11/11/2015 07:29PM
Re: Why not use index   446 Peter Brawley 11/11/2015 11:00PM
Re: Why not use index   411 Øystein Grøvlen 11/12/2015 01:48AM
Re: Why not use index   429 zhang peng 11/16/2015 12:17AM
Google Update Optimizer system   814 Anik Bhowmik 11/09/2015 09:35PM
Re: Google Update Optimizer system   419 Peter Brawley 11/09/2015 10:12PM
Re: Google Update Optimizer system   411 Jonathan Stephens 11/10/2015 01:02AM
Normalize dump table   1,150 Jose Valle 10/11/2015 08:37PM
Re: Normalize dump table   396 Jose Valle 10/11/2015 08:42PM
Re: Normalize dump table   428 Antonio Valle 10/13/2015 01:41PM
Re: Normalize dump table   428 Rick James 10/17/2015 07:15PM
optimize query for index using between and group by   1,213 Raghavendra raghu 08/28/2015 03:21AM
Re: optimize query for index using between and group by   659 Rick James 08/29/2015 09:56AM
Re: optimize query for index using between and group by   499 Raghavendra raghu 08/31/2015 02:34AM
Parsing in MySQL Workbench: the ANTLR age   972 Edwin Desouza 08/14/2015 10:16AM
MySQL Optimizer: Hints   1,170 Edwin Desouza 07/29/2015 10:07AM
Index not working for date field used in between query   1,483 Shrinivasa rao 07/22/2015 11:48PM
Re: Index not working for date field used in between query   680 Rick James 07/26/2015 08:28AM
MyISAM using 'wrong' index   1,091 Danny Stommen 06/08/2015 04:14AM
Re: MyISAM using 'wrong' index   586 Rick James 06/09/2015 11:53PM
Re: MyISAM using 'wrong' index   610 Danny Stommen 06/30/2015 03:22AM
Re: MyISAM using 'wrong' index   623 Rick James 07/02/2015 09:28PM
Re: MyISAM using 'wrong' index   559 Danny Stommen 07/03/2015 03:16AM
Re: MyISAM using 'wrong' index   632 Rick James 07/04/2015 11:10AM
Re: MyISAM using 'wrong' index   560 Danny Stommen 07/07/2015 01:56AM
Re: MyISAM using 'wrong' index   534 Edwin Desouza 07/07/2015 09:10AM
Need help understanding optimizer behavior in 5.6   1,244 Aaron Craven 06/22/2015 08:30AM
Re: Need help understanding optimizer behavior in 5.6   612 Aaron Craven 06/22/2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6   547 Rick James 06/23/2015 07:00PM
Re: Need help understanding optimizer behavior in 5.6   548 Aaron Craven 06/24/2015 06:22AM
Re: Need help understanding optimizer behavior in 5.6   538 Rick James 06/25/2015 11:37PM
Re: Need help understanding optimizer behavior in 5.6   549 Aaron Craven 06/26/2015 06:56AM
Re: Need help understanding optimizer behavior in 5.6   535 Øystein Grøvlen 06/30/2015 05:46AM
Re: Need help understanding optimizer behavior in 5.6   776 Aaron Craven 06/30/2015 08:06AM
Re: Need help understanding optimizer behavior in 5.6   557 Aaron Craven 06/30/2015 08:16AM
Re: Need help understanding optimizer behavior in 5.6   554 Øystein Grøvlen 07/01/2015 03:49AM
Re: Need help understanding optimizer behavior in 5.6   526 Aaron Craven 07/01/2015 06:48AM
Re: Need help understanding optimizer behavior in 5.6   590 Edwin Desouza 07/01/2015 03:05PM
Re: Need help understanding optimizer behavior in 5.6   563 Aaron Craven 07/02/2015 07:48AM
MySQL 5.7: Optimizer Trace and EXPLAIN FORMAT=JSON   1,230 Edwin Desouza 05/25/2015 10:41AM
foreign key creation in a huge database   1,237 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   664 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   1,498 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   708 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   641 Rick James 03/04/2015 08:18PM
Query optimisation advice   1,507 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   809 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   765 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   737 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   1,487 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   749 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   768 Rick James 12/12/2014 08:36PM
MySQL cash optimization   1,616 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   881 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   683 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   659 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   1,525 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   912 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   893 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   1,494 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   1,581 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   768 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   794 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   1,448 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   1,605 Edwin Desouza 10/03/2014 01:47PM
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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