Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Connector/J 5.1.35 has been released 03/24/2015 04:19AM
MySQL Cluster 7.4.5 has been released 03/20/2015 12:52PM
MySQL Connector/C 6.1.6 has been released 03/20/2015 11:23AM
MySQL Enterprise Backup 3.12.0 has been released 03/16/2015 10:55AM
MySQL Workbench 6.3.2 RC has been released 03/13/2015 06:57AM
Pages:  Previous 1 2 3 4 5 ...Last Next
Current Page: 2 of 16
Subject Views Written By Posted
mysql subquery query optimization question   1,595 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   747 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,437 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   715 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,377 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,336 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   992 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,570 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   788 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   781 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   1,069 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,440 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   782 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   721 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,535 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   731 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   721 Rick James 10/16/2012 07:48PM
bulk update very slow   3,216 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,177 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,133 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,259 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   1,511 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   845 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   917 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   753 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,402 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   691 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,368 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   712 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   758 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,572 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   749 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   738 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,401 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   778 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   726 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   714 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   663 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   717 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   1,682 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   825 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   749 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   813 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   793 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   729 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   793 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   777 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   871 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   753 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   4,610 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   1,888 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   1,613 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   1,578 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   1,769 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   5,378 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   3,040 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   2,318 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   2,854 Rick James 08/22/2012 07:44PM
Order By Slows down Joins   2,238 Sami BH 08/22/2012 09:12AM
Re: Order By Slows down Joins   649 Rick James 08/23/2012 08:56PM
always uses filesort even after adding indexes   1,371 Pranav Gore 08/22/2012 02:49AM
Re: always uses filesort even after adding indexes   666 Rick James 08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS   1,669 Paul Tsui 08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS   881 Øystein Grøvlen 08/20/2012 05:16AM
CPU usage 99% - and query very slow - help   2,807 irox ferenc 08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help   1,085 Rick James 08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help   1,541 robert eeeeee 08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help   977 Øystein Grøvlen 08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.   2,192 Andrej Andrejevic 07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.   961 Rick James 07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.   885 Andrej Andrejevic 07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.   790 Andrej Andrejevic 07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.   799 Rick James 07/25/2012 12:21AM
Index for Query   1,498 dileep ch 07/17/2012 12:41AM
Re: Index for Query   741 Rick James 07/17/2012 10:36PM
Re: Index for Query   770 dileep ch 07/18/2012 11:52PM
Re: Index for Query   1,243 Rick James 07/19/2012 09:49PM
best way to optimize this query   1,510 Jap bn 07/14/2012 09:54AM
Re: best way to optimize this query   1,066 Rick James 07/15/2012 10:11PM
Optimizer being overly aggressive   1,410 Adrian Cornish 07/06/2012 08:18PM
Re: Optimizer being overly aggressive   738 Rick James 07/10/2012 12:49PM
Re: Optimizer being overly aggressive   782 Adrian Cornish 07/10/2012 08:54PM
multiple-column index and order by   1,468 Raphael Hoffmann 07/06/2012 05:59PM
Re: multiple-column index and order by   777 Rick James 07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization   1,109 Edwin DeSouza 07/09/2012 11:15AM
performing mysqldump corrected query issue?   1,329 Peter Sylvester 06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?   787 Rick James 07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?   673 Peter Sylvester 06/26/2012 02:08PM
difference between READ and SCAN   1,251 Linhai Song 06/20/2012 04:05PM
Re: difference between READ and SCAN   617 Rick James 06/20/2012 08:23PM
Re: difference between READ and SCAN   748 Linhai Song 06/21/2012 12:19PM
to optimize a self join request   1,146 Oracleuser user 06/14/2012 08:23AM
Re: to optimize a self join request   764 Rick James 06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003   1,318 ted strauss 06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003   605 ted strauss 06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'   1,603 liao zhifeng 06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   686 Rick James 06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'   719 liao zhifeng 06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'   736 Rick James 06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'   810 liao zhifeng 06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   696 Rick James 06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'   698 liao zhifeng 06/13/2012 10:35PM
Table does not support optimize...   1,725 Piotr Ch 06/02/2012 12:58AM
Querying a fast subquery never returns   1,181 Eric Coll 05/22/2012 05:15PM
Re: Querying a fast subquery never returns   695 Eric Coll 05/22/2012 05:19PM
Re: Querying a fast subquery never returns   739 Rick James 05/24/2012 12:40AM
Re: Querying a fast subquery never returns   791 Eric Coll 05/25/2012 11:15AM
Re: Querying a fast subquery never returns   746 Rick James 05/26/2012 10:59AM
table index optimization   1,232 Matus Zeman 05/01/2012 10:55AM
Re: table index optimization   700 Rick James 05/02/2012 07:08PM
Re: table index optimization   733 Rick James 05/05/2012 09:07AM
Re: table index optimization   693 Matus Zeman 05/17/2012 09:25AM
Re: table index optimization   874 Matus Zeman 05/04/2012 08:20AM
Query execution plan   1,545 Chris Slominski 05/08/2012 12:38PM
Re: Query execution plan   719 Rick James 05/09/2012 09:35PM
Re: Query execution plan   823 Chris Slominski 05/10/2012 08:29AM
Re: Query execution plan   845 Rick James 05/11/2012 07:16PM
Re: Query execution plan   800 Chris Slominski 05/14/2012 05:27AM
Re: Query execution plan   739 Rick James 05/15/2012 07:22PM
Re: Query execution plan   661 Chris Slominski 05/09/2012 11:08AM
limit & scala subquery   1,265 jongse park 05/08/2012 10:33PM
Re: limit & scala subquery   609 Rick James 05/09/2012 09:21PM
Mysql slow upadte   1,039 krishna krishna 04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?   1,375 Fernando Oliveira 04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?   748 Rick James 04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?   634 Fernando Oliveira 04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?   859 Rick James 04/26/2012 07:59AM
Help with query/tables optimization   1,148 Oleg Ivanov 04/14/2012 05:20AM
Re: Help with query/tables optimization   702 Rick James 04/16/2012 12:05AM
Re: Help with query/tables optimization   730 Oleg Ivanov 04/16/2012 11:53AM
Re: Help with query/tables optimization   908 Oleg Ivanov 04/16/2012 12:04PM
Identical servers different plan for the same query   1,677 Eric Coll 04/07/2012 01:20AM
Re: Identical servers different plan for the same query   648 Eric Coll 04/10/2012 03:28PM
Re: Identical servers different plan for the same query   711 Rick James 04/10/2012 10:29PM
Re: Identical servers different plan for the same query   704 Eric Coll 04/11/2012 10:05AM
Re: Identical servers different plan for the same query   738 Rick James 04/12/2012 08:56AM
Re: Identical servers different plan for the same query   717 Eric Coll 04/12/2012 03:23PM
Re: Identical servers different plan for the same query   727 Rick James 04/13/2012 03:49PM
Re: Identical servers different plan for the same query   733 Eric Coll 04/07/2012 09:55AM
Re: Identical servers different plan for the same query   722 irek kordirko 04/07/2012 02:54PM
Re: Identical servers different plan for the same query   946 Rick James 04/08/2012 12:20PM
Re: Identical servers different plan for the same query   984 Eric Coll 04/09/2012 10:24AM
Re: Identical servers different plan for the same query   666 Eric Coll 04/09/2012 10:35AM
Re: Identical servers different plan for the same query   674 Eric Coll 04/09/2012 10:37AM
Re: Identical servers different plan for the same query   701 Eric Coll 04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5   1,003 Edwin DeSouza 04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins   1,010 Edwin DeSouza 04/10/2012 02:54PM
MySQL Optimizer Team Blog   1,037 Edwin DeSouza 04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!   873 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6   813 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause   909 Edwin DeSouza 04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization   834 Edwin DeSouza 04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)   1,231 Edwin DeSouza 04/10/2012 01:54PM
LEFT JOIN WHERE GROUP BY   1,611 Daniel Flöijer 04/02/2012 02:51AM
Re: LEFT JOIN WHERE GROUP BY   904 Rick James 04/05/2012 08:01PM
Re: LEFT JOIN WHERE GROUP BY   620 irek kordirko 04/02/2012 12:04PM
Re: LEFT JOIN WHERE GROUP BY   679 Daniel Flöijer 04/02/2012 01:24PM
Re: LEFT JOIN WHERE GROUP BY   679 irek kordirko 04/02/2012 04:29PM
Re: LEFT JOIN WHERE GROUP BY   842 Daniel Flöijer 04/03/2012 12:50AM
Re: LEFT JOIN WHERE GROUP BY   677 irek kordirko 04/03/2012 05:40PM
Re: LEFT JOIN WHERE GROUP BY   763 Daniel Flöijer 04/03/2012 11:22PM
Re: LEFT JOIN WHERE GROUP BY   672 irek kordirko 04/04/2012 05:12PM
Re: LEFT JOIN WHERE GROUP BY   511 Daniel Flöijer 04/04/2012 11:10PM
Explain the order of query   1,300 jongse park 03/19/2012 01:49AM
Re: Explain the order of query   649 Rick James 03/19/2012 10:38PM
Re: Explain the order of query   691 jongse park 03/21/2012 07:06PM
Re: Explain the order of query   781 Jørgen Løland 03/28/2012 05:06AM
Re: Explain the order of query   559 Rick James 03/22/2012 06:01PM
Re: Explain the order of query   579 jongse park 03/22/2012 08:13PM
Re: Explain the order of query   551 Rick James 03/23/2012 07:57PM
This topic has been moved.:  difference between READ and SCAN   0 Linhai Song 06/20/2012 05:47PM
Pages:  Previous 1 2 3 4 5 ...Last Next
Current Page: 2 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.