Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Connector/Python 2.1.2 Beta has been released 04/30/2015 07:02PM
MySQL Enterprise Monitor 3.0.21 has been released 04/29/2015 12:16PM
Pages:  1 2 3 4 5 ...Last Next
Current Page: 1 of 16
Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   752 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   2,066 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,792 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   8,142 Edwin DeSouza 04/28/2007 06:20PM
foreign key creation in a huge database   165 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   88 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   196 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   88 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   73 Rick James 03/04/2015 08:18PM
Query optimisation advice   349 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   134 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   137 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   132 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   385 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   159 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   142 Rick James 12/12/2014 08:36PM
MySQL cash optimization   492 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   191 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   164 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   141 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   347 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   189 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   211 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   481 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   496 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   234 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   267 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   474 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   490 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   432 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   515 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   292 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   328 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   580 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   312 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   266 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   491 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   251 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   677 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   343 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   379 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   284 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   250 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   628 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   279 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   526 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   255 Rick James 08/04/2014 01:23PM
Query not using index sporadically   686 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   330 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   626 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   573 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   827 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   368 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   384 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   405 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   365 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   355 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   353 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   378 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   419 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   614 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   873 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   398 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   892 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   464 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   451 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   1,082 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   469 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   486 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   460 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   464 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   482 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   479 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   457 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   476 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   1,398 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   585 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   512 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   527 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   647 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   583 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   583 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   588 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   571 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   538 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   504 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   539 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   513 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   558 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   622 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   533 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   516 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   554 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   517 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   519 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   546 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   570 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   560 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   527 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   1,238 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   493 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   579 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   712 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   471 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   533 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   486 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   481 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   536 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   559 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   575 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   529 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   980 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   493 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   1,439 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   583 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   802 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   944 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   552 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   525 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   501 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   993 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   1,198 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   704 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   626 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   609 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   582 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   576 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   587 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   672 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   1,204 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   598 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   588 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   1,081 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   534 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   1,678 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   768 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   670 Rick James 08/31/2013 04:13PM
query index not used   912 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   528 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   1,368 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   664 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   641 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   570 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   625 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   634 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   640 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   651 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   1,003 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   540 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,727 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   871 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   780 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   769 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   711 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   728 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   713 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,219 Rick James 06/04/2013 11:49PM
Query optimization   1,421 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   755 Rick James 05/12/2013 08:42PM
Re: Query optimization   710 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   669 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   656 Rick James 05/16/2013 08:18AM
Re: Query optimization   716 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   716 Rick James 05/17/2013 11:47PM
Re: Query optimization   655 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   678 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   1,044 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,703 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   774 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   3,887 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   1,079 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   1,078 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   973 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   972 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   871 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   870 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   1,117 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   1,004 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   904 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   924 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   944 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   925 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   863 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   919 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   976 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   1,093 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   976 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   955 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   986 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   1,015 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,432 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   833 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   822 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   898 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   1,224 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   4,646 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,785 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,379 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   2,224 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   872 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   1,156 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   863 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   919 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   799 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   878 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   825 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,603 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   818 Rick James 12/21/2012 12:49PM
Pages:  1 2 3 4 5 ...Last Next
Current Page: 1 of 16

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.