Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Connector/NET 6.9.4 has been released 09/26/2014 04:00PM
MySQL Utilities 1.5.2 has been released 09/26/2014 12:14PM
MySQL Utilities 1.6.0 Alpha has been released 09/26/2014 11:06AM
MySQL Cluster 7.4.1 has been released 09/26/2014 04:47AM
MySQL Community Server 5.7.5 has been released (part 3/3) 09/25/2014 03:04PM
Pages:  Previous 1 2 3 4 5 ...Last Next
Current Page: 2 of 16
Subject Views Written By Posted
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,413 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   669 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   679 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,287 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   644 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   641 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   643 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   600 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   622 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   1,475 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   740 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   663 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   689 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   682 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   663 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   688 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   698 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   730 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   653 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   3,786 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   1,576 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   1,338 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   1,337 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   1,537 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   4,412 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   2,493 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   1,916 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   2,256 Rick James 08/22/2012 07:44PM
Order By Slows down Joins   1,543 Sami BH 08/22/2012 09:12AM
Re: Order By Slows down Joins   587 Rick James 08/23/2012 08:56PM
always uses filesort even after adding indexes   1,251 Pranav Gore 08/22/2012 02:49AM
Re: always uses filesort even after adding indexes   620 Rick James 08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS   1,437 Paul Tsui 08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS   798 Øystein Grøvlen 08/20/2012 05:16AM
CPU usage 99% - and query very slow - help   2,590 irox ferenc 08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help   1,013 Rick James 08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help   1,356 robert eeeeee 08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help   898 Øystein Grøvlen 08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.   1,908 Andrej Andrejevic 07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.   861 Rick James 07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.   820 Andrej Andrejevic 07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.   695 Andrej Andrejevic 07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.   738 Rick James 07/25/2012 12:21AM
Index for Query   1,368 dileep ch 07/17/2012 12:41AM
Re: Index for Query   685 Rick James 07/17/2012 10:36PM
Re: Index for Query   714 dileep ch 07/18/2012 11:52PM
Re: Index for Query   1,114 Rick James 07/19/2012 09:49PM
best way to optimize this query   1,401 Jap bn 07/14/2012 09:54AM
Re: best way to optimize this query   978 Rick James 07/15/2012 10:11PM
Optimizer being overly aggressive   1,282 Adrian Cornish 07/06/2012 08:18PM
Re: Optimizer being overly aggressive   674 Rick James 07/10/2012 12:49PM
Re: Optimizer being overly aggressive   689 Adrian Cornish 07/10/2012 08:54PM
multiple-column index and order by   1,274 Raphael Hoffmann 07/06/2012 05:59PM
Re: multiple-column index and order by   724 Rick James 07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization   1,044 Edwin DeSouza 07/09/2012 11:15AM
performing mysqldump corrected query issue?   1,204 Peter Sylvester 06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?   711 Rick James 07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?   615 Peter Sylvester 06/26/2012 02:08PM
difference between READ and SCAN   1,162 Linhai Song 06/20/2012 04:05PM
Re: difference between READ and SCAN   576 Rick James 06/20/2012 08:23PM
Re: difference between READ and SCAN   699 Linhai Song 06/21/2012 12:19PM
to optimize a self join request   1,050 Oracleuser user 06/14/2012 08:23AM
Re: to optimize a self join request   682 Rick James 06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003   1,220 ted strauss 06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003   562 ted strauss 06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'   1,453 liao zhifeng 06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   615 Rick James 06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'   661 liao zhifeng 06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'   649 Rick James 06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'   721 liao zhifeng 06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   613 Rick James 06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'   582 liao zhifeng 06/13/2012 10:35PM
Table does not support optimize...   1,531 Piotr Ch 06/02/2012 12:58AM
Querying a fast subquery never returns   1,067 Eric Coll 05/22/2012 05:15PM
Re: Querying a fast subquery never returns   631 Eric Coll 05/22/2012 05:19PM
Re: Querying a fast subquery never returns   689 Rick James 05/24/2012 12:40AM
Re: Querying a fast subquery never returns   732 Eric Coll 05/25/2012 11:15AM
Re: Querying a fast subquery never returns   683 Rick James 05/26/2012 10:59AM
table index optimization   1,124 Matus Zeman 05/01/2012 10:55AM
Re: table index optimization   652 Rick James 05/02/2012 07:08PM
Re: table index optimization   678 Rick James 05/05/2012 09:07AM
Re: table index optimization   627 Matus Zeman 05/17/2012 09:25AM
Re: table index optimization   805 Matus Zeman 05/04/2012 08:20AM
Query execution plan   1,350 Chris Slominski 05/08/2012 12:38PM
Re: Query execution plan   636 Rick James 05/09/2012 09:35PM
Re: Query execution plan   750 Chris Slominski 05/10/2012 08:29AM
Re: Query execution plan   759 Rick James 05/11/2012 07:16PM
Re: Query execution plan   706 Chris Slominski 05/14/2012 05:27AM
Re: Query execution plan   641 Rick James 05/15/2012 07:22PM
Re: Query execution plan   578 Chris Slominski 05/09/2012 11:08AM
limit & scala subquery   1,173 jongse park 05/08/2012 10:33PM
Re: limit & scala subquery   558 Rick James 05/09/2012 09:21PM
Mysql slow upadte   933 krishna krishna 04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?   1,220 Fernando Oliveira 04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?   700 Rick James 04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?   565 Fernando Oliveira 04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?   782 Rick James 04/26/2012 07:59AM
Help with query/tables optimization   1,050 Oleg Ivanov 04/14/2012 05:20AM
Re: Help with query/tables optimization   655 Rick James 04/16/2012 12:05AM
Re: Help with query/tables optimization   671 Oleg Ivanov 04/16/2012 11:53AM
Re: Help with query/tables optimization   859 Oleg Ivanov 04/16/2012 12:04PM
Identical servers different plan for the same query   1,528 Eric Coll 04/07/2012 01:20AM
Re: Identical servers different plan for the same query   586 Eric Coll 04/10/2012 03:28PM
Re: Identical servers different plan for the same query   615 Rick James 04/10/2012 10:29PM
Re: Identical servers different plan for the same query   615 Eric Coll 04/11/2012 10:05AM
Re: Identical servers different plan for the same query   651 Rick James 04/12/2012 08:56AM
Re: Identical servers different plan for the same query   615 Eric Coll 04/12/2012 03:23PM
Re: Identical servers different plan for the same query   638 Rick James 04/13/2012 03:49PM
Re: Identical servers different plan for the same query   649 Eric Coll 04/07/2012 09:55AM
Re: Identical servers different plan for the same query   645 irek kordirko 04/07/2012 02:54PM
Re: Identical servers different plan for the same query   849 Rick James 04/08/2012 12:20PM
Re: Identical servers different plan for the same query   861 Eric Coll 04/09/2012 10:24AM
Re: Identical servers different plan for the same query   607 Eric Coll 04/09/2012 10:35AM
Re: Identical servers different plan for the same query   613 Eric Coll 04/09/2012 10:37AM
Re: Identical servers different plan for the same query   591 Eric Coll 04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5   926 Edwin DeSouza 04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins   931 Edwin DeSouza 04/10/2012 02:54PM
MySQL Optimizer Team Blog   971 Edwin DeSouza 04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!   810 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6   748 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause   817 Edwin DeSouza 04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization   737 Edwin DeSouza 04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)   1,142 Edwin DeSouza 04/10/2012 01:54PM
LEFT JOIN WHERE GROUP BY   1,457 Daniel Flöijer 04/02/2012 02:51AM
Re: LEFT JOIN WHERE GROUP BY   814 Rick James 04/05/2012 08:01PM
Re: LEFT JOIN WHERE GROUP BY   534 irek kordirko 04/02/2012 12:04PM
Re: LEFT JOIN WHERE GROUP BY   589 Daniel Flöijer 04/02/2012 01:24PM
Re: LEFT JOIN WHERE GROUP BY   610 irek kordirko 04/02/2012 04:29PM
Re: LEFT JOIN WHERE GROUP BY   752 Daniel Flöijer 04/03/2012 12:50AM
Re: LEFT JOIN WHERE GROUP BY   595 irek kordirko 04/03/2012 05:40PM
Re: LEFT JOIN WHERE GROUP BY   683 Daniel Flöijer 04/03/2012 11:22PM
Re: LEFT JOIN WHERE GROUP BY   583 irek kordirko 04/04/2012 05:12PM
Re: LEFT JOIN WHERE GROUP BY   475 Daniel Flöijer 04/04/2012 11:10PM
Explain the order of query   1,177 jongse park 03/19/2012 01:49AM
Re: Explain the order of query   553 Rick James 03/19/2012 10:38PM
Re: Explain the order of query   575 jongse park 03/21/2012 07:06PM
Re: Explain the order of query   663 Jørgen Løland 03/28/2012 05:06AM
Re: Explain the order of query   483 Rick James 03/22/2012 06:01PM
Re: Explain the order of query   475 jongse park 03/22/2012 08:13PM
Re: Explain the order of query   480 Rick James 03/23/2012 07:57PM
Queries using JOIN and ORDER BY LIMIT   2,403 Nikita Dubrovsky 03/10/2012 01:11PM
Re: Queries using JOIN and ORDER BY LIMIT   772 irek kordirko 03/12/2012 06:18PM
Re: Queries using JOIN and ORDER BY LIMIT   761 Rick James 03/13/2012 11:07PM
Re: Queries using JOIN and ORDER BY LIMIT   717 Nikita Dubrovsky 03/14/2012 08:45AM
Re: Queries using JOIN and ORDER BY LIMIT   888 Rick James 03/15/2012 10:50AM
Obfuscate Functions and Procedures   916 Tremal Naik 03/12/2012 05:00AM
Re: Obfuscate Functions and Procedures   715 Rick James 03/13/2012 10:46PM
Group by not using index   1,280 Matthew Moles 03/02/2012 10:06AM
Re: Group by not using index   668 Rick James 03/04/2012 10:59PM
Re: Group by not using index   589 Matthew Moles 03/05/2012 03:57AM
Re: Group by not using index   546 irek kordirko 03/03/2012 05:22PM
Optimizing query   1,060 Marko Kupusic 02/24/2012 06:07AM
Re: Optimizing query   503 Rick James 02/25/2012 05:54PM
Re: Optimizing query   491 Marko Kupusic 02/27/2012 06:04AM
Re: Optimizing query   505 Rick James 02/28/2012 07:57PM
Re: Optimizing query   486 Ole John Aske 02/25/2012 03:49AM
Re: Optimizing query   731 Marko Kupusic 02/27/2012 05:57AM
Re: Optimizing query   561 Scott Nemes 02/24/2012 01:16PM
how to optimise query for 10+ millions records   1,505 Azhar Rahi 02/09/2012 03:30AM
Re: how to optimise query for 10+ millions records   890 irek kordirko 02/09/2012 05:31AM
Re: how to optimise query for 10+ millions records   644 Azhar Rahi 02/09/2012 05:38AM
Re: how to optimise query for 10+ millions records   582 irek kordirko 02/09/2012 05:58PM
Re: how to optimise query for 10+ millions records   601 Rick James 02/11/2012 11:26PM
Re: how to optimise query for 10+ millions records   570 Azhar Rahi 02/12/2012 10:12PM
Re: how to optimise query for 10+ millions records   552 irek kordirko 02/13/2012 02:18PM
Re: how to optimise query for 10+ millions records   627 Azhar Rahi 02/14/2012 02:33AM
Re: how to optimise query for 10+ millions records   536 irek kordirko 02/14/2012 07:24AM
Re: how to optimise query for 10+ millions records   569 Rick James 02/15/2012 07:30AM
Re: how to optimise query for 10+ millions records   833 Azhar Rahi 02/16/2012 03:54AM
Re: how to optimise query for 10+ millions records   563 Rick James 02/17/2012 01:20AM
Re: how to optimise query for 10+ millions records   483 Azhar Rahi 02/17/2012 03:57PM
Re: how to optimise query for 10+ millions records   691 irek kordirko 02/17/2012 05:12PM
Re: how to optimise query for 10+ millions records   518 Azhar Rahi 02/20/2012 02:21AM
Re: how to optimise query for 10+ millions records   548 Rick James 02/18/2012 07:18AM
Re: how to optimise query for 10+ millions records   533 Azhar Rahi 02/21/2012 03:25AM
Re: how to optimise query for 10+ millions records   623 Rick James 02/24/2012 10:45AM
Join   1,035 johne doe 02/01/2012 06:51AM
Re: Join Query Performance Problme   505 Rick James 02/03/2012 10:18AM
Re: Join Query Performance Problme   476 irek kordirko 02/01/2012 11:14AM
Re: Join Query Performance Problme   553 johne doe 02/02/2012 12:39AM
Re: Join Query Performance Problme   520 johne doe 02/02/2012 06:47AM
Re: Join Query Performance Problme   483 irek kordirko 02/02/2012 07:02PM
Re: Join Query Performance Problme   502 johne doe 02/03/2012 12:29AM
Re: Join Query Performance Problme   681 irek kordirko 02/03/2012 11:27AM
Re: Join Query Performance Problme   529 Rick James 02/04/2012 10:39AM
Re: Join Query Performance Problme   738 johne doe 02/14/2012 06:08PM
Re: Join Query Performance Problme   546 johne doe 02/06/2012 06:13AM
query cost calculations   1,983 Silpa Majeti 02/11/2012 04:01AM
Re: query cost calculations   707 Øystein Grøvlen 02/13/2012 07:13PM
Re: query cost calculations   811 Rick James 02/12/2012 01:03PM
Strange performance results with JOIN/COUNT   1,212 Tomas Pluskal 02/08/2012 06:25PM
Re: Strange performance results with JOIN/COUNT   561 Øystein Grøvlen 02/09/2012 03:01AM
Re: Strange performance results with JOIN/COUNT   777 Tomas Pluskal 02/09/2012 03:13AM
Re: Strange performance results with JOIN/COUNT   734 irek kordirko 02/11/2012 02:53AM
Re: Strange performance results with JOIN/COUNT   533 Tomas Pluskal 02/12/2012 06:44PM
Strange performance with JOIN/COUNT   929 Tomas Pluskal 02/09/2012 12:30AM
Re: Strange performance with JOIN/COUNT   574 Rick James 02/11/2012 11:11PM
Why MySQL does not use an index?   1,370 Panayotis Matsinopoulos 01/16/2012 02:50AM
Re: Why MySQL does not use an index?   592 Rick James 01/19/2012 12:25AM
Re: Why MySQL does not use an index?   623 Panayotis Matsinopoulos 02/10/2012 01:21AM
Re: Why MySQL does not use an index?   631 Rick James 02/11/2012 10:48PM
Re: Why MySQL does not use an index?   502 irek kordirko 02/10/2012 09:50AM
MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   1,496 Chris Ricks 02/02/2012 01:17AM
Re: MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   523 Chris Ricks 02/01/2012 07:33PM
Re: MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   578 Øystein Grøvlen 02/02/2012 03:58AM
Re: MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   522 Chris Ricks 02/02/2012 04:43AM
Re: MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   491 Rick James 02/03/2012 11:57PM
Re: MySQL 5.5 Query Optimizer - Massive Regression (vs 5.0)   585 Chris Ricks 02/02/2012 03:06AM
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.