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Subject Views Written By Posted
MySQL 5.6: IN Subqueries Are Optimized away   1,310 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   4,900 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,877 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,434 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   2,312 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   914 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   1,199 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   897 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   958 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   833 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   915 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   859 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,638 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   833 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,686 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   795 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,512 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   754 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,436 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,537 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   1,060 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,643 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   831 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   815 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   1,105 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,490 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   809 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   746 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,581 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   763 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   754 Rick James 10/16/2012 07:48PM
bulk update very slow   3,383 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,237 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,180 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,307 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   1,574 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   882 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   959 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   783 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,483 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   729 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,417 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   741 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   796 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,642 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   775 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   767 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,465 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   831 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   761 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   749 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   698 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   764 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   1,760 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   852 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   780 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   850 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   841 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   754 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   833 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   810 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   928 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   771 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   5,176 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   2,076 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   1,766 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   1,721 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   1,908 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   5,994 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   3,413 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   2,568 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   3,202 Rick James 08/22/2012 07:44PM
Order By Slows down Joins   2,363 Sami BH 08/22/2012 09:12AM
Re: Order By Slows down Joins   678 Rick James 08/23/2012 08:56PM
always uses filesort even after adding indexes   1,440 Pranav Gore 08/22/2012 02:49AM
Re: always uses filesort even after adding indexes   698 Rick James 08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS   1,828 Paul Tsui 08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS   918 Øystein Grøvlen 08/20/2012 05:16AM
CPU usage 99% - and query very slow - help   2,932 irox ferenc 08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help   1,126 Rick James 08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help   1,624 robert eeeeee 08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help   1,019 Øystein Grøvlen 08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.   2,324 Andrej Andrejevic 07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.   1,020 Rick James 07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.   931 Andrej Andrejevic 07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.   826 Andrej Andrejevic 07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.   841 Rick James 07/25/2012 12:21AM
Index for Query   1,579 dileep ch 07/17/2012 12:41AM
Re: Index for Query   771 Rick James 07/17/2012 10:36PM
Re: Index for Query   798 dileep ch 07/18/2012 11:52PM
Re: Index for Query   1,286 Rick James 07/19/2012 09:49PM
best way to optimize this query   1,572 Jap bn 07/14/2012 09:54AM
Re: best way to optimize this query   1,099 Rick James 07/15/2012 10:11PM
Optimizer being overly aggressive   1,464 Adrian Cornish 07/06/2012 08:18PM
Re: Optimizer being overly aggressive   773 Rick James 07/10/2012 12:49PM
Re: Optimizer being overly aggressive   820 Adrian Cornish 07/10/2012 08:54PM
multiple-column index and order by   1,598 Raphael Hoffmann 07/06/2012 05:59PM
Re: multiple-column index and order by   805 Rick James 07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization   1,152 Edwin DeSouza 07/09/2012 11:15AM
performing mysqldump corrected query issue?   1,402 Peter Sylvester 06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?   814 Rick James 07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?   696 Peter Sylvester 06/26/2012 02:08PM
difference between READ and SCAN   1,291 Linhai Song 06/20/2012 04:05PM
Re: difference between READ and SCAN   636 Rick James 06/20/2012 08:23PM
Re: difference between READ and SCAN   783 Linhai Song 06/21/2012 12:19PM
to optimize a self join request   1,209 Oracleuser user 06/14/2012 08:23AM
Re: to optimize a self join request   783 Rick James 06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003   1,358 ted strauss 06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003   628 ted strauss 06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'   1,697 liao zhifeng 06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   720 Rick James 06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'   751 liao zhifeng 06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'   778 Rick James 06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'   850 liao zhifeng 06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   725 Rick James 06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'   736 liao zhifeng 06/13/2012 10:35PM
Table does not support optimize...   1,871 Piotr Ch 06/02/2012 12:58AM
Querying a fast subquery never returns   1,244 Eric Coll 05/22/2012 05:15PM
Re: Querying a fast subquery never returns   722 Eric Coll 05/22/2012 05:19PM
Re: Querying a fast subquery never returns   771 Rick James 05/24/2012 12:40AM
Re: Querying a fast subquery never returns   845 Eric Coll 05/25/2012 11:15AM
Re: Querying a fast subquery never returns   774 Rick James 05/26/2012 10:59AM
table index optimization   1,309 Matus Zeman 05/01/2012 10:55AM
Re: table index optimization   727 Rick James 05/02/2012 07:08PM
Re: table index optimization   778 Rick James 05/05/2012 09:07AM
Re: table index optimization   718 Matus Zeman 05/17/2012 09:25AM
Re: table index optimization   917 Matus Zeman 05/04/2012 08:20AM
Query execution plan   1,690 Chris Slominski 05/08/2012 12:38PM
Re: Query execution plan   770 Rick James 05/09/2012 09:35PM
Re: Query execution plan   862 Chris Slominski 05/10/2012 08:29AM
Re: Query execution plan   876 Rick James 05/11/2012 07:16PM
Re: Query execution plan   847 Chris Slominski 05/14/2012 05:27AM
Re: Query execution plan   776 Rick James 05/15/2012 07:22PM
Re: Query execution plan   697 Chris Slominski 05/09/2012 11:08AM
limit & scala subquery   1,305 jongse park 05/08/2012 10:33PM
Re: limit & scala subquery   634 Rick James 05/09/2012 09:21PM
Mysql slow upadte   1,090 krishna krishna 04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?   1,462 Fernando Oliveira 04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?   777 Rick James 04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?   658 Fernando Oliveira 04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?   892 Rick James 04/26/2012 07:59AM
Help with query/tables optimization   1,206 Oleg Ivanov 04/14/2012 05:20AM
Re: Help with query/tables optimization   740 Rick James 04/16/2012 12:05AM
Re: Help with query/tables optimization   762 Oleg Ivanov 04/16/2012 11:53AM
Re: Help with query/tables optimization   938 Oleg Ivanov 04/16/2012 12:04PM
Identical servers different plan for the same query   1,777 Eric Coll 04/07/2012 01:20AM
Re: Identical servers different plan for the same query   705 Eric Coll 04/10/2012 03:28PM
Re: Identical servers different plan for the same query   769 Rick James 04/10/2012 10:29PM
Re: Identical servers different plan for the same query   749 Eric Coll 04/11/2012 10:05AM
Re: Identical servers different plan for the same query   798 Rick James 04/12/2012 08:56AM
Re: Identical servers different plan for the same query   767 Eric Coll 04/12/2012 03:23PM
Re: Identical servers different plan for the same query   779 Rick James 04/13/2012 03:49PM
Re: Identical servers different plan for the same query   782 Eric Coll 04/07/2012 09:55AM
Re: Identical servers different plan for the same query   777 irek kordirko 04/07/2012 02:54PM
Re: Identical servers different plan for the same query   1,004 Rick James 04/08/2012 12:20PM
Re: Identical servers different plan for the same query   1,037 Eric Coll 04/09/2012 10:24AM
Re: Identical servers different plan for the same query   709 Eric Coll 04/09/2012 10:35AM
Re: Identical servers different plan for the same query   708 Eric Coll 04/09/2012 10:37AM
Re: Identical servers different plan for the same query   750 Eric Coll 04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5   1,041 Edwin DeSouza 04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins   1,048 Edwin DeSouza 04/10/2012 02:54PM
MySQL Optimizer Team Blog   1,089 Edwin DeSouza 04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!   913 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6   846 Edwin DeSouza 04/10/2012 01:56PM
This topic has been moved.:  difference between READ and SCAN   0 Linhai Song 06/20/2012 05:47PM
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