Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Community Server 5.5.44 has been released 05/29/2015 02:02AM
MySQL Connector/Python 2.1.2 Beta has been released 04/30/2015 07:02PM
MySQL Enterprise Monitor 3.0.21 has been released 04/29/2015 12:16PM
Pages:  Previous 1 2 3 4 5 ...Last Next
Current Page: 2 of 16
Subject Views Written By Posted
How to best optimize MYSQL Database   1,606 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   818 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,648 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   781 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,479 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   733 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,413 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,448 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   1,022 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,611 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   817 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   801 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   1,089 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,465 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   800 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   736 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,559 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   749 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   739 Rick James 10/16/2012 07:48PM
bulk update very slow   3,296 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,208 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,160 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,283 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   1,551 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   866 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   946 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   774 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,437 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   713 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,401 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   727 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   781 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,608 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   761 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   757 Øystein Grøvlen 09/06/2012 04:32AM
optimize the query   1,446 ch srinivas 08/27/2012 10:47PM
Re: optimize the query   823 Øystein Grøvlen 08/28/2012 01:43AM
Re: optimize the query   753 ch srinivas 08/29/2012 04:15AM
Re: optimize the query   745 Øystein Grøvlen 08/29/2012 04:39AM
Re: optimize the query   690 ch srinivas 08/29/2012 05:38AM
Re: optimize the query   759 Rick James 08/30/2012 07:20AM
Query with GROUP BY not using Index   1,729 Imran Akbar 08/14/2012 01:06PM
Re: Query with GROUP BY not using Index   845 Øystein Grøvlen 08/15/2012 02:46AM
Re: Query with GROUP BY not using Index   771 Imran Akbar 08/16/2012 10:30AM
Re: Query with GROUP BY not using Index   836 Øystein Grøvlen 08/17/2012 02:58AM
Re: Query with GROUP BY not using Index   830 Rick James 08/18/2012 10:30PM
Re: Query with GROUP BY not using Index   743 Imran Akbar 08/24/2012 12:41PM
Re: Query with GROUP BY not using Index   821 Øystein Grøvlen 08/28/2012 03:11AM
Re: Query with GROUP BY not using Index   801 Imran Akbar 08/28/2012 06:21PM
Re: Query with GROUP BY not using Index   912 Øystein Grøvlen 08/29/2012 01:28AM
Re: Query with GROUP BY not using Index   766 Imran Akbar 08/29/2012 10:36AM
CONCAT and Index in where clause   4,869 Aurelien PANIZZA 08/22/2012 08:45AM
Re: CONCAT and Index in where clause   1,985 Øystein Grøvlen 08/23/2012 01:15AM
Re: CONCAT and Index in where clause   1,684 Rick James 08/23/2012 09:13PM
Re: CONCAT and Index in where clause   1,643 Aurelien PANIZZA 08/27/2012 09:53AM
Re: CONCAT and Index in where clause   1,838 Øystein Grøvlen 08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason   5,690 Vincent B. 08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason   3,244 Jørgen Løland 08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason   2,449 Vincent B. 08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason   3,043 Rick James 08/22/2012 07:44PM
Order By Slows down Joins   2,322 Sami BH 08/22/2012 09:12AM
Re: Order By Slows down Joins   667 Rick James 08/23/2012 08:56PM
always uses filesort even after adding indexes   1,410 Pranav Gore 08/22/2012 02:49AM
Re: always uses filesort even after adding indexes   684 Rick James 08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS   1,747 Paul Tsui 08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS   902 Øystein Grøvlen 08/20/2012 05:16AM
CPU usage 99% - and query very slow - help   2,871 irox ferenc 08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help   1,104 Rick James 08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help   1,596 robert eeeeee 08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help   1,001 Øystein Grøvlen 08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.   2,281 Andrej Andrejevic 07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.   998 Rick James 07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.   916 Andrej Andrejevic 07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.   816 Andrej Andrejevic 07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.   832 Rick James 07/25/2012 12:21AM
Index for Query   1,551 dileep ch 07/17/2012 12:41AM
Re: Index for Query   762 Rick James 07/17/2012 10:36PM
Re: Index for Query   787 dileep ch 07/18/2012 11:52PM
Re: Index for Query   1,267 Rick James 07/19/2012 09:49PM
best way to optimize this query   1,548 Jap bn 07/14/2012 09:54AM
Re: best way to optimize this query   1,078 Rick James 07/15/2012 10:11PM
Optimizer being overly aggressive   1,445 Adrian Cornish 07/06/2012 08:18PM
Re: Optimizer being overly aggressive   759 Rick James 07/10/2012 12:49PM
Re: Optimizer being overly aggressive   803 Adrian Cornish 07/10/2012 08:54PM
multiple-column index and order by   1,529 Raphael Hoffmann 07/06/2012 05:59PM
Re: multiple-column index and order by   794 Rick James 07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization   1,136 Edwin DeSouza 07/09/2012 11:15AM
performing mysqldump corrected query issue?   1,371 Peter Sylvester 06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?   803 Rick James 07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?   688 Peter Sylvester 06/26/2012 02:08PM
difference between READ and SCAN   1,275 Linhai Song 06/20/2012 04:05PM
Re: difference between READ and SCAN   630 Rick James 06/20/2012 08:23PM
Re: difference between READ and SCAN   768 Linhai Song 06/21/2012 12:19PM
to optimize a self join request   1,186 Oracleuser user 06/14/2012 08:23AM
Re: to optimize a self join request   773 Rick James 06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003   1,341 ted strauss 06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003   621 ted strauss 06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'   1,656 liao zhifeng 06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   704 Rick James 06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'   736 liao zhifeng 06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'   758 Rick James 06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'   837 liao zhifeng 06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'   711 Rick James 06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'   722 liao zhifeng 06/13/2012 10:35PM
Table does not support optimize...   1,807 Piotr Ch 06/02/2012 12:58AM
Querying a fast subquery never returns   1,216 Eric Coll 05/22/2012 05:15PM
Re: Querying a fast subquery never returns   713 Eric Coll 05/22/2012 05:19PM
Re: Querying a fast subquery never returns   758 Rick James 05/24/2012 12:40AM
Re: Querying a fast subquery never returns   831 Eric Coll 05/25/2012 11:15AM
Re: Querying a fast subquery never returns   760 Rick James 05/26/2012 10:59AM
table index optimization   1,277 Matus Zeman 05/01/2012 10:55AM
Re: table index optimization   712 Rick James 05/02/2012 07:08PM
Re: table index optimization   754 Rick James 05/05/2012 09:07AM
Re: table index optimization   707 Matus Zeman 05/17/2012 09:25AM
Re: table index optimization   894 Matus Zeman 05/04/2012 08:20AM
Query execution plan   1,625 Chris Slominski 05/08/2012 12:38PM
Re: Query execution plan   739 Rick James 05/09/2012 09:35PM
Re: Query execution plan   841 Chris Slominski 05/10/2012 08:29AM
Re: Query execution plan   862 Rick James 05/11/2012 07:16PM
Re: Query execution plan   828 Chris Slominski 05/14/2012 05:27AM
Re: Query execution plan   759 Rick James 05/15/2012 07:22PM
Re: Query execution plan   681 Chris Slominski 05/09/2012 11:08AM
limit & scala subquery   1,291 jongse park 05/08/2012 10:33PM
Re: limit & scala subquery   623 Rick James 05/09/2012 09:21PM
Mysql slow upadte   1,069 krishna krishna 04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?   1,422 Fernando Oliveira 04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?   759 Rick James 04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?   647 Fernando Oliveira 04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?   876 Rick James 04/26/2012 07:59AM
Help with query/tables optimization   1,179 Oleg Ivanov 04/14/2012 05:20AM
Re: Help with query/tables optimization   723 Rick James 04/16/2012 12:05AM
Re: Help with query/tables optimization   746 Oleg Ivanov 04/16/2012 11:53AM
Re: Help with query/tables optimization   926 Oleg Ivanov 04/16/2012 12:04PM
Identical servers different plan for the same query   1,730 Eric Coll 04/07/2012 01:20AM
Re: Identical servers different plan for the same query   681 Eric Coll 04/10/2012 03:28PM
Re: Identical servers different plan for the same query   743 Rick James 04/10/2012 10:29PM
Re: Identical servers different plan for the same query   730 Eric Coll 04/11/2012 10:05AM
Re: Identical servers different plan for the same query   769 Rick James 04/12/2012 08:56AM
Re: Identical servers different plan for the same query   744 Eric Coll 04/12/2012 03:23PM
Re: Identical servers different plan for the same query   753 Rick James 04/13/2012 03:49PM
Re: Identical servers different plan for the same query   762 Eric Coll 04/07/2012 09:55AM
Re: Identical servers different plan for the same query   750 irek kordirko 04/07/2012 02:54PM
Re: Identical servers different plan for the same query   976 Rick James 04/08/2012 12:20PM
Re: Identical servers different plan for the same query   1,014 Eric Coll 04/09/2012 10:24AM
Re: Identical servers different plan for the same query   687 Eric Coll 04/09/2012 10:35AM
Re: Identical servers different plan for the same query   692 Eric Coll 04/09/2012 10:37AM
Re: Identical servers different plan for the same query   728 Eric Coll 04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5   1,026 Edwin DeSouza 04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins   1,031 Edwin DeSouza 04/10/2012 02:54PM
MySQL Optimizer Team Blog   1,063 Edwin DeSouza 04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!   897 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6   836 Edwin DeSouza 04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause   936 Edwin DeSouza 04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization   859 Edwin DeSouza 04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)   1,259 Edwin DeSouza 04/10/2012 01:54PM
LEFT JOIN WHERE GROUP BY   1,665 Daniel Flöijer 04/02/2012 02:51AM
Re: LEFT JOIN WHERE GROUP BY   927 Rick James 04/05/2012 08:01PM
Re: LEFT JOIN WHERE GROUP BY   654 irek kordirko 04/02/2012 12:04PM
Re: LEFT JOIN WHERE GROUP BY   707 Daniel Flöijer 04/02/2012 01:24PM
Re: LEFT JOIN WHERE GROUP BY   695 irek kordirko 04/02/2012 04:29PM
Re: LEFT JOIN WHERE GROUP BY   868 Daniel Flöijer 04/03/2012 12:50AM
Re: LEFT JOIN WHERE GROUP BY   706 irek kordirko 04/03/2012 05:40PM
Re: LEFT JOIN WHERE GROUP BY   783 Daniel Flöijer 04/03/2012 11:22PM
Re: LEFT JOIN WHERE GROUP BY   690 irek kordirko 04/04/2012 05:12PM
Re: LEFT JOIN WHERE GROUP BY   522 Daniel Flöijer 04/04/2012 11:10PM
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.