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Sticky:  MySQL Performance Tuning (1 Posts)   688 Edwin Desouza 07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)   1,417 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   2,757 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   3,368 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   8,821 Edwin DeSouza 04/28/2007 06:20PM
Help with partially unique index   19 El T 06/22/2016 04:44AM
Explain plans for InnoDB and Memory Engines   109 Jagan Kumar 05/02/2016 03:15PM
Re: Explain plans for InnoDB and Memory Engines   56 Peter Brawley 05/02/2016 09:23PM
Re: Explain plans for InnoDB and Memory Engines   50 Øystein Grøvlen 05/04/2016 05:17AM
Re: Explain plans for InnoDB and Memory Engines   48 Rick James 05/05/2016 10:18PM
MySQL Query Rewrite Plugins   239 Edwin Desouza 02/02/2016 09:48PM
why left join can not use unique index?   507 h h 12/07/2015 08:30PM
Re: why left join can not use unique index?   177 Rick James 12/08/2015 08:46PM
Re: why left join can not use unique index?   165 h h 12/11/2015 03:20AM
Re: why left join can not use unique index?   164 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   391 Michael W. 11/16/2015 11:14AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   152 Rick James 11/30/2015 08:09PM
Re: prepared statement query takes 3s for a few hundred lines - query issue   189 Michael W. 12/01/2015 07:10AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   155 Rick James 12/07/2015 01:17AM
Why not use index   413 zhang peng 11/08/2015 11:14PM
Re: Why not use index   171 Peter Brawley 11/09/2015 11:42AM
Re: Why not use index   166 zhang peng 11/11/2015 12:17AM
Re: Why not use index   178 Øystein Grøvlen 11/10/2015 10:35AM
Re: Why not use index   185 zhang peng 11/11/2015 12:15AM
Re: Why not use index   168 Øystein Grøvlen 11/11/2015 03:40AM
Re: Why not use index   158 zhang peng 11/11/2015 07:29PM
Re: Why not use index   190 Peter Brawley 11/11/2015 11:00PM
Re: Why not use index   147 Øystein Grøvlen 11/12/2015 01:48AM
Re: Why not use index   173 zhang peng 11/16/2015 12:17AM
Google Update Optimizer system   373 Anik Bhowmik 11/09/2015 09:35PM
Re: Google Update Optimizer system   182 Peter Brawley 11/09/2015 10:12PM
Re: Google Update Optimizer system   166 Jonathan Stephens 11/10/2015 01:02AM
Normalize dump table   574 Jose Valle 10/11/2015 08:37PM
Re: Normalize dump table   185 Jose Valle 10/11/2015 08:42PM
Re: Normalize dump table   191 Antonio Valle 10/13/2015 01:41PM
Re: Normalize dump table   200 Rick James 10/17/2015 07:15PM
optimize query for index using between and group by   607 Raghavendra raghu 08/28/2015 03:21AM
Re: optimize query for index using between and group by   325 Rick James 08/29/2015 09:56AM
Re: optimize query for index using between and group by   267 Raghavendra raghu 08/31/2015 02:34AM
Parsing in MySQL Workbench: the ANTLR age   511 Edwin Desouza 08/14/2015 10:16AM
MySQL Optimizer: Hints   657 Edwin Desouza 07/29/2015 10:07AM
Index not working for date field used in between query   852 Shrinivasa rao 07/22/2015 11:48PM
Re: Index not working for date field used in between query   366 Rick James 07/26/2015 08:28AM
MyISAM using 'wrong' index   686 Danny Stommen 06/08/2015 04:14AM
Re: MyISAM using 'wrong' index   319 Rick James 06/09/2015 11:53PM
Re: MyISAM using 'wrong' index   324 Danny Stommen 06/30/2015 03:22AM
Re: MyISAM using 'wrong' index   288 Rick James 07/02/2015 09:28PM
Re: MyISAM using 'wrong' index   319 Danny Stommen 07/03/2015 03:16AM
Re: MyISAM using 'wrong' index   349 Rick James 07/04/2015 11:10AM
Re: MyISAM using 'wrong' index   302 Danny Stommen 07/07/2015 01:56AM
Re: MyISAM using 'wrong' index   296 Edwin Desouza 07/07/2015 09:10AM
Need help understanding optimizer behavior in 5.6   752 Aaron Craven 06/22/2015 08:30AM
Re: Need help understanding optimizer behavior in 5.6   319 Aaron Craven 06/22/2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6   286 Rick James 06/23/2015 07:00PM
Re: Need help understanding optimizer behavior in 5.6   282 Aaron Craven 06/24/2015 06:22AM
Re: Need help understanding optimizer behavior in 5.6   299 Rick James 06/25/2015 11:37PM
Re: Need help understanding optimizer behavior in 5.6   294 Aaron Craven 06/26/2015 06:56AM
Re: Need help understanding optimizer behavior in 5.6   287 Øystein Grøvlen 06/30/2015 05:46AM
Re: Need help understanding optimizer behavior in 5.6   391 Aaron Craven 06/30/2015 08:06AM
Re: Need help understanding optimizer behavior in 5.6   282 Aaron Craven 06/30/2015 08:16AM
Re: Need help understanding optimizer behavior in 5.6   277 Øystein Grøvlen 07/01/2015 03:49AM
Re: Need help understanding optimizer behavior in 5.6   299 Aaron Craven 07/01/2015 06:48AM
Re: Need help understanding optimizer behavior in 5.6   315 Edwin Desouza 07/01/2015 03:05PM
Re: Need help understanding optimizer behavior in 5.6   285 Aaron Craven 07/02/2015 07:48AM
MySQL 5.7: Optimizer Trace and EXPLAIN FORMAT=JSON   784 Edwin Desouza 05/25/2015 10:41AM
foreign key creation in a huge database   808 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   418 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   977 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   435 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   424 Rick James 03/04/2015 08:18PM
Query optimisation advice   1,062 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   521 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   495 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   476 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   958 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   495 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   479 Rick James 12/12/2014 08:36PM
MySQL cash optimization   1,131 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   592 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   468 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   422 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   1,016 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   533 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   592 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   1,075 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   1,104 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   536 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   554 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   1,052 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   1,150 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   1,092 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   1,244 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   595 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   695 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   1,226 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   589 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   559 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   1,081 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   552 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   1,310 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   648 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   715 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   550 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   524 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   1,275 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   599 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   1,150 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   574 Rick James 08/04/2014 01:23PM
Query not using index sporadically   1,329 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   654 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   1,366 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   1,122 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   1,400 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   676 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   708 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   736 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   734 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   657 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   681 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   705 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   772 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   1,170 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   1,650 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   725 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   1,742 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   879 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   839 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   1,962 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   791 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   896 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   818 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   837 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   828 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   838 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   827 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   885 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   2,257 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   964 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   878 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   906 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   1,165 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   969 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   1,014 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   997 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   1,107 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   879 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   889 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   919 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   899 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   934 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   988 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   904 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   888 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   967 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   921 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   854 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   928 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   950 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   991 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   888 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   2,000 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   839 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   1,040 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   1,116 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   883 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   878 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   838 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   825 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   857 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   965 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   949 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   891 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   1,616 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   824 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   2,251 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   905 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   1,353 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   1,522 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   853 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   839 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   803 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   1,636 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   1,822 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   1,009 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   971 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   985 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   882 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   934 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   929 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   1,037 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   1,884 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   914 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   910 Rick James 09/13/2013 10:59PM
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