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Subject Views Written By Posted
Sticky:  MySQL Performance Tuning (1 Posts)   807 Edwin Desouza 07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)   1,514 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   2,875 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   3,471 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   8,944 Edwin DeSouza 04/28/2007 06:20PM
why the two query has a different execute plan?   33 h h 08/22/2016 02:55AM
Re: why the two query has a different execute plan?   23 Øystein Grøvlen 08/22/2016 05:08AM
Re: why the two query has a different execute plan?   11 Rick James 08/26/2016 02:29PM
how to optimize this sql?   91 h h 07/07/2016 07:38PM
Re: how to optimize this sql?   50 Peter Brawley 07/08/2016 10:59AM
Re: how to optimize this sql?   40 h h 07/12/2016 09:01PM
Re: how to optimize this sql?   40 Rick James 07/09/2016 11:04PM
Re: how to optimize this sql?   40 h h 07/12/2016 09:08PM
Re: how to optimize this sql?   38 Rick James 07/14/2016 12:52PM
Indexing for date column for range query   99 duc minh 07/05/2016 11:04PM
Re: Indexing for date column for range query   40 Rick James 07/09/2016 10:47PM
Help with partially unique index   131 El T 06/22/2016 04:44AM
Re: Help with partially unique index   59 Rick James 06/25/2016 10:45PM
Re: Help with partially unique index   50 El T 07/02/2016 03:33PM
Re: Help with partially unique index   50 Rick James 07/04/2016 12:50PM
Explain plans for InnoDB and Memory Engines   214 Jagan Kumar 05/02/2016 03:15PM
Re: Explain plans for InnoDB and Memory Engines   102 Peter Brawley 05/02/2016 09:23PM
Re: Explain plans for InnoDB and Memory Engines   96 Øystein Grøvlen 05/04/2016 05:17AM
Re: Explain plans for InnoDB and Memory Engines   99 Rick James 05/05/2016 10:18PM
MySQL Query Rewrite Plugins   335 Edwin Desouza 02/02/2016 09:48PM
why left join can not use unique index?   614 h h 12/07/2015 08:30PM
Re: why left join can not use unique index?   225 Rick James 12/08/2015 08:46PM
Re: why left join can not use unique index?   212 h h 12/11/2015 03:20AM
Re: why left join can not use unique index?   220 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   490 Michael W. 11/16/2015 11:14AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   194 Rick James 11/30/2015 08:09PM
Re: prepared statement query takes 3s for a few hundred lines - query issue   237 Michael W. 12/01/2015 07:10AM
Re: prepared statement query takes 3s for a few hundred lines - query issue   199 Rick James 12/07/2015 01:17AM
Why not use index   533 zhang peng 11/08/2015 11:14PM
Re: Why not use index   209 Peter Brawley 11/09/2015 11:42AM
Re: Why not use index   210 zhang peng 11/11/2015 12:17AM
Re: Why not use index   218 Øystein Grøvlen 11/10/2015 10:35AM
Re: Why not use index   230 zhang peng 11/11/2015 12:15AM
Re: Why not use index   208 Øystein Grøvlen 11/11/2015 03:40AM
Re: Why not use index   206 zhang peng 11/11/2015 07:29PM
Re: Why not use index   240 Peter Brawley 11/11/2015 11:00PM
Re: Why not use index   194 Øystein Grøvlen 11/12/2015 01:48AM
Re: Why not use index   216 zhang peng 11/16/2015 12:17AM
Google Update Optimizer system   480 Anik Bhowmik 11/09/2015 09:35PM
Re: Google Update Optimizer system   227 Peter Brawley 11/09/2015 10:12PM
Re: Google Update Optimizer system   211 Jonathan Stephens 11/10/2015 01:02AM
Normalize dump table   707 Jose Valle 10/11/2015 08:37PM
Re: Normalize dump table   220 Jose Valle 10/11/2015 08:42PM
Re: Normalize dump table   229 Antonio Valle 10/13/2015 01:41PM
Re: Normalize dump table   238 Rick James 10/17/2015 07:15PM
optimize query for index using between and group by   715 Raghavendra raghu 08/28/2015 03:21AM
Re: optimize query for index using between and group by   378 Rick James 08/29/2015 09:56AM
Re: optimize query for index using between and group by   305 Raghavendra raghu 08/31/2015 02:34AM
Parsing in MySQL Workbench: the ANTLR age   608 Edwin Desouza 08/14/2015 10:16AM
MySQL Optimizer: Hints   782 Edwin Desouza 07/29/2015 10:07AM
Index not working for date field used in between query   1,034 Shrinivasa rao 07/22/2015 11:48PM
Re: Index not working for date field used in between query   432 Rick James 07/26/2015 08:28AM
MyISAM using 'wrong' index   787 Danny Stommen 06/08/2015 04:14AM
Re: MyISAM using 'wrong' index   374 Rick James 06/09/2015 11:53PM
Re: MyISAM using 'wrong' index   380 Danny Stommen 06/30/2015 03:22AM
Re: MyISAM using 'wrong' index   344 Rick James 07/02/2015 09:28PM
Re: MyISAM using 'wrong' index   384 Danny Stommen 07/03/2015 03:16AM
Re: MyISAM using 'wrong' index   423 Rick James 07/04/2015 11:10AM
Re: MyISAM using 'wrong' index   368 Danny Stommen 07/07/2015 01:56AM
Re: MyISAM using 'wrong' index   346 Edwin Desouza 07/07/2015 09:10AM
Need help understanding optimizer behavior in 5.6   875 Aaron Craven 06/22/2015 08:30AM
Re: Need help understanding optimizer behavior in 5.6   387 Aaron Craven 06/22/2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6   340 Rick James 06/23/2015 07:00PM
Re: Need help understanding optimizer behavior in 5.6   333 Aaron Craven 06/24/2015 06:22AM
Re: Need help understanding optimizer behavior in 5.6   347 Rick James 06/25/2015 11:37PM
Re: Need help understanding optimizer behavior in 5.6   361 Aaron Craven 06/26/2015 06:56AM
Re: Need help understanding optimizer behavior in 5.6   343 Øystein Grøvlen 06/30/2015 05:46AM
Re: Need help understanding optimizer behavior in 5.6   474 Aaron Craven 06/30/2015 08:06AM
Re: Need help understanding optimizer behavior in 5.6   344 Aaron Craven 06/30/2015 08:16AM
Re: Need help understanding optimizer behavior in 5.6   330 Øystein Grøvlen 07/01/2015 03:49AM
Re: Need help understanding optimizer behavior in 5.6   348 Aaron Craven 07/01/2015 06:48AM
Re: Need help understanding optimizer behavior in 5.6   385 Edwin Desouza 07/01/2015 03:05PM
Re: Need help understanding optimizer behavior in 5.6   344 Aaron Craven 07/02/2015 07:48AM
MySQL 5.7: Optimizer Trace and EXPLAIN FORMAT=JSON   892 Edwin Desouza 05/25/2015 10:41AM
foreign key creation in a huge database   888 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   458 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   1,093 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   498 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   464 Rick James 03/04/2015 08:18PM
Query optimisation advice   1,166 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   594 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   558 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   540 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   1,060 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   547 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   530 Rick James 12/12/2014 08:36PM
MySQL cash optimization   1,238 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   655 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   504 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   470 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   1,125 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   610 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   664 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   1,167 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   1,193 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   573 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   592 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   1,129 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   1,239 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   1,182 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   1,374 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   655 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   766 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   1,321 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   633 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   612 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   1,178 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   601 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   1,421 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   701 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   767 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   591 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   572 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   1,359 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   646 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   1,237 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   613 Rick James 08/04/2014 01:23PM
Query not using index sporadically   1,434 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   713 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   1,465 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   1,207 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   1,476 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   726 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   772 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   792 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   801 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   711 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   736 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   766 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   843 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   1,262 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   1,763 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   772 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   1,877 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   928 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   879 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   2,078 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   846 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   950 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   870 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   878 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   869 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   896 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   882 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   935 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   2,387 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   1,014 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   936 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   968 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   1,235 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   1,025 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   1,065 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   1,043 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   1,190 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   926 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   955 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   963 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   947 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   974 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   1,034 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   950 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   946 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   1,041 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   973 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   901 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   976 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   1,003 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   1,058 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   931 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   2,117 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   897 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   1,112 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   1,189 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   962 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   931 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   888 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   871 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   910 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   1,011 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   1,012 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   950 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   1,692 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   870 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   2,379 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   956 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   1,419 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   1,596 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   905 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   883 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   847 Rick James 10/16/2013 08:36PM
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