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Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   448 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   1,817 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,517 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   7,897 Edwin DeSouza 04/28/2007 06:20PM
MySQL Optimizer Cost Model   111 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   172 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   52 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   60 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   162 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   130 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   126 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   182 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   91 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   113 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   331 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   135 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   87 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   214 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   99 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   387 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   180 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   188 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   92 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   90 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   236 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   103 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   263 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   100 Rick James 08/04/2014 01:23PM
Query not using index sporadically   348 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   142 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   327 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   292 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   436 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   204 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   192 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   198 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   185 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   180 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   183 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   178 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   189 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   359 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   463 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   204 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   555 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   253 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   258 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   682 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   275 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   282 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   270 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   276 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   267 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   269 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   230 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   274 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   944 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   350 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   311 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   329 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   366 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   335 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   331 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   344 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   335 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   291 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   293 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   310 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   288 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   323 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   354 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   292 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   281 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   324 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   304 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   283 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   314 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   326 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   323 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   299 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   839 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   297 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   347 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   443 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   290 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   295 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   300 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   289 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   298 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   311 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   322 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   280 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   664 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   323 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   1,011 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   395 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   555 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   680 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   358 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   331 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   317 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   672 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   844 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   472 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   408 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   373 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   403 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   394 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   387 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   452 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   833 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   385 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   407 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   801 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   389 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   1,215 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   547 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   444 Rick James 08/31/2013 04:13PM
query index not used   660 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   364 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   1,014 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   452 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   441 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   385 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   411 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   422 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   432 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   440 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   735 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   398 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,243 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   597 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   596 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   529 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   486 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   477 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   513 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   825 Rick James 06/04/2013 11:49PM
Query optimization   1,040 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   511 Rick James 05/12/2013 08:42PM
Re: Query optimization   487 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   467 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   439 Rick James 05/16/2013 08:18AM
Re: Query optimization   490 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   475 Rick James 05/17/2013 11:47PM
Re: Query optimization   455 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   467 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   807 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,346 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   593 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   3,143 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   845 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   834 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   737 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   755 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   648 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   697 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   827 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   729 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   680 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   697 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   679 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   682 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   646 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   672 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   729 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   848 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   716 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   742 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   696 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   731 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,100 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   655 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   650 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   694 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   991 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   4,002 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,527 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,094 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   1,835 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   694 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   945 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   672 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   745 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   635 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   671 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   638 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,383 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   681 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,387 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   649 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,260 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   613 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,266 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,101 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   908 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,451 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   721 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   701 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   993 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,370 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   729 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   667 Chris Slominski 10/25/2012 06:15AM
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