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Subject Views Written By Posted
Expland and slow-query don't agree   1,432 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   733 Rick James 08/04/2014 01:23PM
Query not using index sporadically   1,643 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   839 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   1,671 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   1,359 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   1,620 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   806 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   849 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   868 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   887 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   787 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   821 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   846 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   912 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   1,406 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   1,961 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   847 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   2,048 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   1,000 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   949 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   2,291 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   933 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   1,030 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   951 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   944 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   940 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   978 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   949 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   1,010 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   2,580 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   1,084 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   1,016 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   1,024 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   1,363 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   1,084 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   1,115 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   1,107 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   1,303 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   1,002 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   1,035 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   1,041 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   1,003 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   1,045 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   1,102 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   1,014 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   1,044 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   1,104 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   1,046 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   966 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   1,037 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   1,069 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   1,125 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   994 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   2,276 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   963 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   1,216 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   1,256 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   1,063 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   990 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   952 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   928 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   970 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   1,080 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   1,063 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   1,000 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   1,810 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   913 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   2,513 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   1,010 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   1,509 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   1,685 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   942 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   927 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   893 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   1,823 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   1,998 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   1,071 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   1,029 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   1,054 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   955 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   991 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   988 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   1,102 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   2,098 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   980 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   972 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   1,713 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   905 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   2,592 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   1,221 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   1,044 Rick James 08/31/2013 04:13PM
query index not used   1,478 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   847 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   2,021 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   1,031 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   943 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   832 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   916 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   950 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   941 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   942 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   1,666 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   821 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   2,660 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,226 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,146 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,129 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,012 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,063 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,066 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,970 Rick James 06/04/2013 11:49PM
Query optimization   2,086 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   1,050 Rick James 05/12/2013 08:42PM
Re: Query optimization   1,004 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   986 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   978 Rick James 05/16/2013 08:18AM
Re: Query optimization   968 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   983 Rick James 05/17/2013 11:47PM
Re: Query optimization   910 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   992 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   1,544 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   2,441 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   1,004 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   5,119 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   1,395 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   1,379 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   1,227 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   1,210 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   1,133 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   1,108 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   1,435 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   1,223 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   1,149 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   1,210 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   1,167 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   1,133 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   1,091 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   1,133 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   1,203 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   1,658 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   1,194 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   1,205 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   1,226 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   1,252 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,972 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   1,121 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   1,123 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   1,192 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   1,626 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   6,145 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   2,199 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,733 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   2,772 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   1,167 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   1,439 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   1,051 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   1,127 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   972 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   1,080 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   1,044 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,981 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   1,032 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   2,098 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   990 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,877 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   937 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,794 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   3,211 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   1,314 Rick James 12/08/2012 01:33PM
Complex query - need advise   2,098 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   1,117 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   1,023 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   1,371 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,861 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   992 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   844 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,882 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   898 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   930 Rick James 10/16/2012 07:48PM
bulk update very slow   4,040 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,490 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,388 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,503 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   2,004 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   1,107 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   1,180 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   938 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,853 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   907 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,767 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   934 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   997 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   2,020 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   913 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   955 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,918 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   982 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   866 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   860 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   840 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   916 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   2,197 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   1,017 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   985 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   1,037 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   968 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   922 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   1,002 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   973 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   1,184 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   938 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   7,573 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   2,951 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   2,390 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   2,365 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   2,501 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   8,759 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   5,072 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   3,661 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   4,754 Rick James 08/22/2012 07:44PM
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