Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Cluster 7.1.33 has been released 10/21/2014 04:54AM
MySQL Cluster 7.3.7 has been released 10/17/2014 07:46PM
MySQL Cluster 7.2.18 has been released 10/16/2014 12:07PM
MySQL Enterprise Monitor 3.0.15 has been released 10/01/2014 10:49AM
MySQL Connector/NET 6.9.4 has been released 09/26/2014 04:00PM
Pages:  Previous 1 2 3 4 5 ...Last Next
Current Page: 2 of 16
Subject Views Written By Posted
JOIN query too slow   1,426 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   669 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   656 Rick James 10/16/2012 07:48PM
bulk update very slow   3,040 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,115 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,015 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,155 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   1,372 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   772 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   844 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   682 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,301 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   642 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,272 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   665 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   685 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,433 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   683 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   685 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,298 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   652 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   650 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   650 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   606 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   629 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   1,498 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   748 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   673 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   700 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   694 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   673 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   696 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   715 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   749 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   659 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   3,890 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   1,617 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   1,368 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   1,365 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   1,566 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   4,549 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   2,561 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   1,967 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   2,347 Rick James 08/22/2012 07:44PM
Order By Slows down Joins   1,741 Sami BH 08/22/2012 09:12AM
Re: Order By Slows down Joins   595 Rick James 08/23/2012 08:56PM
always uses filesort even after adding indexes   1,264 Pranav Gore 08/22/2012 02:49AM
Re: always uses filesort even after adding indexes   623 Rick James 08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS   1,456 Paul Tsui 08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS   803 Øystein Grøvlen 08/20/2012 05:16AM
CPU usage 99% - and query very slow - help   2,625 irox ferenc 08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help   1,021 Rick James 08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help   1,390 robert eeeeee 08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help   911 Øystein Grøvlen 08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.   1,937 Andrej Andrejevic 07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.   872 Rick James 07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.   826 Andrej Andrejevic 07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.   703 Andrej Andrejevic 07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.   743 Rick James 07/25/2012 12:21AM
Index for Query   1,382 dileep ch 07/17/2012 12:41AM
Re: Index for Query   691 Rick James 07/17/2012 10:36PM
Re: Index for Query   716 dileep ch 07/18/2012 11:52PM
Re: Index for Query   1,142 Rick James 07/19/2012 09:49PM
best way to optimize this query   1,412 Jap bn 07/14/2012 09:54AM
Re: best way to optimize this query   990 Rick James 07/15/2012 10:11PM
Optimizer being overly aggressive   1,295 Adrian Cornish 07/06/2012 08:18PM
Re: Optimizer being overly aggressive   679 Rick James 07/10/2012 12:49PM
Re: Optimizer being overly aggressive   694 Adrian Cornish 07/10/2012 08:54PM
multiple-column index and order by   1,285 Raphael Hoffmann 07/06/2012 05:59PM
Re: multiple-column index and order by   729 Rick James 07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization   1,054 Edwin DeSouza 07/09/2012 11:15AM
performing mysqldump corrected query issue?   1,215 Peter Sylvester 06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?   717 Rick James 07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?   620 Peter Sylvester 06/26/2012 02:08PM
difference between READ and SCAN   1,169 Linhai Song 06/20/2012 04:05PM
Re: difference between READ and SCAN   581 Rick James 06/20/2012 08:23PM
Re: difference between READ and SCAN   708 Linhai Song 06/21/2012 12:19PM
to optimize a self join request   1,060 Oracleuser user 06/14/2012 08:23AM
Re: to optimize a self join request   691 Rick James 06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003   1,230 ted strauss 06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003   567 ted strauss 06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'   1,470 liao zhifeng 06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   623 Rick James 06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'   668 liao zhifeng 06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'   654 Rick James 06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'   730 liao zhifeng 06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   618 Rick James 06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'   588 liao zhifeng 06/13/2012 10:35PM
Table does not support optimize...   1,550 Piotr Ch 06/02/2012 12:58AM
Querying a fast subquery never returns   1,078 Eric Coll 05/22/2012 05:15PM
Re: Querying a fast subquery never returns   635 Eric Coll 05/22/2012 05:19PM
Re: Querying a fast subquery never returns   695 Rick James 05/24/2012 12:40AM
Re: Querying a fast subquery never returns   741 Eric Coll 05/25/2012 11:15AM
Re: Querying a fast subquery never returns   692 Rick James 05/26/2012 10:59AM
table index optimization   1,129 Matus Zeman 05/01/2012 10:55AM
Re: table index optimization   657 Rick James 05/02/2012 07:08PM
Re: table index optimization   680 Rick James 05/05/2012 09:07AM
Re: table index optimization   630 Matus Zeman 05/17/2012 09:25AM
Re: table index optimization   811 Matus Zeman 05/04/2012 08:20AM
Query execution plan   1,367 Chris Slominski 05/08/2012 12:38PM
Re: Query execution plan   643 Rick James 05/09/2012 09:35PM
Re: Query execution plan   758 Chris Slominski 05/10/2012 08:29AM
Re: Query execution plan   764 Rick James 05/11/2012 07:16PM
Re: Query execution plan   712 Chris Slominski 05/14/2012 05:27AM
Re: Query execution plan   649 Rick James 05/15/2012 07:22PM
Re: Query execution plan   586 Chris Slominski 05/09/2012 11:08AM
limit & scala subquery   1,181 jongse park 05/08/2012 10:33PM
Re: limit & scala subquery   561 Rick James 05/09/2012 09:21PM
Mysql slow upadte   947 krishna krishna 04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?   1,234 Fernando Oliveira 04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?   704 Rick James 04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?   569 Fernando Oliveira 04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?   789 Rick James 04/26/2012 07:59AM
Help with query/tables optimization   1,055 Oleg Ivanov 04/14/2012 05:20AM
Re: Help with query/tables optimization   658 Rick James 04/16/2012 12:05AM
Re: Help with query/tables optimization   675 Oleg Ivanov 04/16/2012 11:53AM
Re: Help with query/tables optimization   864 Oleg Ivanov 04/16/2012 12:04PM
Identical servers different plan for the same query   1,546 Eric Coll 04/07/2012 01:20AM
Re: Identical servers different plan for the same query   592 Eric Coll 04/10/2012 03:28PM
Re: Identical servers different plan for the same query   624 Rick James 04/10/2012 10:29PM
Re: Identical servers different plan for the same query   620 Eric Coll 04/11/2012 10:05AM
Re: Identical servers different plan for the same query   657 Rick James 04/12/2012 08:56AM
Re: Identical servers different plan for the same query   622 Eric Coll 04/12/2012 03:23PM
Re: Identical servers different plan for the same query   647 Rick James 04/13/2012 03:49PM
Re: Identical servers different plan for the same query   655 Eric Coll 04/07/2012 09:55AM
Re: Identical servers different plan for the same query   649 irek kordirko 04/07/2012 02:54PM
Re: Identical servers different plan for the same query   856 Rick James 04/08/2012 12:20PM
Re: Identical servers different plan for the same query   870 Eric Coll 04/09/2012 10:24AM
Re: Identical servers different plan for the same query   612 Eric Coll 04/09/2012 10:35AM
Re: Identical servers different plan for the same query   618 Eric Coll 04/09/2012 10:37AM
Re: Identical servers different plan for the same query   598 Eric Coll 04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5   934 Edwin DeSouza 04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins   938 Edwin DeSouza 04/10/2012 02:54PM
MySQL Optimizer Team Blog   979 Edwin DeSouza 04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!   816 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6   755 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause   826 Edwin DeSouza 04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization   742 Edwin DeSouza 04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)   1,147 Edwin DeSouza 04/10/2012 01:54PM
LEFT JOIN WHERE GROUP BY   1,472 Daniel Flöijer 04/02/2012 02:51AM
Re: LEFT JOIN WHERE GROUP BY   819 Rick James 04/05/2012 08:01PM
Re: LEFT JOIN WHERE GROUP BY   543 irek kordirko 04/02/2012 12:04PM
Re: LEFT JOIN WHERE GROUP BY   594 Daniel Flöijer 04/02/2012 01:24PM
Re: LEFT JOIN WHERE GROUP BY   615 irek kordirko 04/02/2012 04:29PM
Re: LEFT JOIN WHERE GROUP BY   756 Daniel Flöijer 04/03/2012 12:50AM
Re: LEFT JOIN WHERE GROUP BY   603 irek kordirko 04/03/2012 05:40PM
Re: LEFT JOIN WHERE GROUP BY   690 Daniel Flöijer 04/03/2012 11:22PM
Re: LEFT JOIN WHERE GROUP BY   589 irek kordirko 04/04/2012 05:12PM
Re: LEFT JOIN WHERE GROUP BY   479 Daniel Flöijer 04/04/2012 11:10PM
Explain the order of query   1,191 jongse park 03/19/2012 01:49AM
Re: Explain the order of query   561 Rick James 03/19/2012 10:38PM
Re: Explain the order of query   581 jongse park 03/21/2012 07:06PM
Re: Explain the order of query   671 Jørgen Løland 03/28/2012 05:06AM
Re: Explain the order of query   488 Rick James 03/22/2012 06:01PM
Re: Explain the order of query   479 jongse park 03/22/2012 08:13PM
Re: Explain the order of query   487 Rick James 03/23/2012 07:57PM
Queries using JOIN and ORDER BY LIMIT   2,467 Nikita Dubrovsky 03/10/2012 01:11PM
Re: Queries using JOIN and ORDER BY LIMIT   780 irek kordirko 03/12/2012 06:18PM
Re: Queries using JOIN and ORDER BY LIMIT   768 Rick James 03/13/2012 11:07PM
Re: Queries using JOIN and ORDER BY LIMIT   724 Nikita Dubrovsky 03/14/2012 08:45AM
Re: Queries using JOIN and ORDER BY LIMIT   894 Rick James 03/15/2012 10:50AM
Obfuscate Functions and Procedures   923 Tremal Naik 03/12/2012 05:00AM
Re: Obfuscate Functions and Procedures   722 Rick James 03/13/2012 10:46PM
Group by not using index   1,297 Matthew Moles 03/02/2012 10:06AM
Re: Group by not using index   676 Rick James 03/04/2012 10:59PM
Re: Group by not using index   598 Matthew Moles 03/05/2012 03:57AM
Re: Group by not using index   548 irek kordirko 03/03/2012 05:22PM
Optimizing query   1,066 Marko Kupusic 02/24/2012 06:07AM
Re: Optimizing query   509 Rick James 02/25/2012 05:54PM
Re: Optimizing query   497 Marko Kupusic 02/27/2012 06:04AM
Re: Optimizing query   510 Rick James 02/28/2012 07:57PM
Re: Optimizing query   493 Ole John Aske 02/25/2012 03:49AM
Re: Optimizing query   736 Marko Kupusic 02/27/2012 05:57AM
Re: Optimizing query   564 Scott Nemes 02/24/2012 01:16PM
how to optimise query for 10+ millions records   1,515 Azhar Rahi 02/09/2012 03:30AM
Re: how to optimise query for 10+ millions records   894 irek kordirko 02/09/2012 05:31AM
Re: how to optimise query for 10+ millions records   650 Azhar Rahi 02/09/2012 05:38AM
Re: how to optimise query for 10+ millions records   587 irek kordirko 02/09/2012 05:58PM
Re: how to optimise query for 10+ millions records   610 Rick James 02/11/2012 11:26PM
Re: how to optimise query for 10+ millions records   578 Azhar Rahi 02/12/2012 10:12PM
Re: how to optimise query for 10+ millions records   557 irek kordirko 02/13/2012 02:18PM
Re: how to optimise query for 10+ millions records   634 Azhar Rahi 02/14/2012 02:33AM
Re: how to optimise query for 10+ millions records   542 irek kordirko 02/14/2012 07:24AM
Re: how to optimise query for 10+ millions records   579 Rick James 02/15/2012 07:30AM
Re: how to optimise query for 10+ millions records   843 Azhar Rahi 02/16/2012 03:54AM
Re: how to optimise query for 10+ millions records   569 Rick James 02/17/2012 01:20AM
Re: how to optimise query for 10+ millions records   487 Azhar Rahi 02/17/2012 03:57PM
Re: how to optimise query for 10+ millions records   698 irek kordirko 02/17/2012 05:12PM
Re: how to optimise query for 10+ millions records   525 Azhar Rahi 02/20/2012 02:21AM
Re: how to optimise query for 10+ millions records   551 Rick James 02/18/2012 07:18AM
Re: how to optimise query for 10+ millions records   538 Azhar Rahi 02/21/2012 03:25AM
Re: how to optimise query for 10+ millions records   629 Rick James 02/24/2012 10:45AM
Join   1,045 johne doe 02/01/2012 06:51AM
Re: Join Query Performance Problme   510 Rick James 02/03/2012 10:18AM
Re: Join Query Performance Problme   483 irek kordirko 02/01/2012 11:14AM
Re: Join Query Performance Problme   560 johne doe 02/02/2012 12:39AM
Re: Join Query Performance Problme   524 johne doe 02/02/2012 06:47AM
Re: Join Query Performance Problme   489 irek kordirko 02/02/2012 07:02PM
Re: Join Query Performance Problme   511 johne doe 02/03/2012 12:29AM
Re: Join Query Performance Problme   685 irek kordirko 02/03/2012 11:27AM
Re: Join Query Performance Problme   534 Rick James 02/04/2012 10:39AM
Re: Join Query Performance Problme   743 johne doe 02/14/2012 06:08PM
Re: Join Query Performance Problme   552 johne doe 02/06/2012 06:13AM
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.