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Can we expect an enhancement for derived table merge optimization?  
3,453
Michael Hogue
01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,375
Rick James
01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,786
Roy Lyseng
01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,227
Rick James
01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,374
Roy Lyseng
01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,208
Rick James
01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,299
Roy Lyseng
01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,228
Roy Lyseng
01/11/2013 08:51AM
How to best optimize MYSQL Database  
2,227
Muhammad Usman
12/10/2012 03:45AM
Re: How to best optimize MYSQL Database  
1,205
Rick James
12/21/2012 12:49PM
mysql subquery query optimization question  
2,477
Yong Yim
01/12/2013 09:24AM
Re: mysql subquery query optimization question  
1,141
Rick James
01/13/2013 11:30AM
Create a New Datatype  
2,167
Andy Gurzynski
01/06/2013 01:00AM
Re: Create a New Datatype  
1,079
Rick James
01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys  
2,166
Edwin Desouza
12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"  
3,980
Sebastian Schött
12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"  
1,556
Rick James
12/08/2012 01:33PM
Complex query - need advise  
2,504
chris boer
11/03/2012 04:16PM
Re: Complex query - need advise  
1,243
chris boer
11/03/2012 04:24PM
Re: Complex query - need advise  
1,201
chris boer
11/04/2012 10:05AM
Re: Complex query - need advise  
1,523
Rick James
11/05/2012 11:12AM
Follow up on "Query Execution Plan"  
2,116
Chris Slominski
10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"  
1,175
Chris Slominski
10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"  
1,023
Chris Slominski
10/25/2012 06:15AM
JOIN query too slow  
2,194
N. Kovac
10/13/2012 11:52AM
Re: JOIN query too slow  
1,075
Peter Brawley
10/14/2012 10:26AM
Re: JOIN query too slow  
1,128
Rick James
10/16/2012 07:48PM
bulk update very slow  
4,533
james che
09/25/2012 02:51PM
Re: bulk update very slow  
1,711
james che
09/26/2012 02:58PM
Re: bulk update very slow  
1,711
Rick James
09/27/2012 08:19PM
Re: bulk update very slow  
2,372
Jørgen Løland
09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?  
2,488
Daniel Estrada
09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,341
Rick James
09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,333
Daniel Estrada
09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,064
Rick James
09/24/2012 11:43PM
Join? Union? I am so lost.  
2,040
Hank Reardon
09/17/2012 09:09AM
Re: Join? Union? I am so lost.  
1,065
Rick James
09/18/2012 07:48AM
How make indexes work with group by statement  
1,987
Adnan Raza
09/13/2012 12:48AM
Re: How make indexes work with group by statement  
1,119
Rick James
09/15/2012 10:34PM
Re: How make indexes work with group by statement  
1,169
Jørgen Løland
09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
2,383
Dominik Bieringer
09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
1,071
Rick James
09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
1,165
Øystein Grøvlen
09/06/2012 04:32AM
optimize the query  
2,155
ch srinivas
08/27/2012 10:47PM
Re: optimize the query  
1,107
Øystein Grøvlen
08/28/2012 01:43AM
Re: optimize the query  
1,000
ch srinivas
08/29/2012 04:15AM
Re: optimize the query  
1,070
Øystein Grøvlen
08/29/2012 04:39AM
Re: optimize the query  
979
ch srinivas
08/29/2012 05:38AM
Re: optimize the query  
1,042
Rick James
08/30/2012 07:20AM
Query with GROUP BY not using Index  
2,540
Imran Akbar
08/14/2012 01:06PM
Re: Query with GROUP BY not using Index  
1,209
Øystein Grøvlen
08/15/2012 02:46AM
Re: Query with GROUP BY not using Index  
1,147
Imran Akbar
08/16/2012 10:30AM
Re: Query with GROUP BY not using Index  
1,336
Øystein Grøvlen
08/17/2012 02:58AM
Re: Query with GROUP BY not using Index  
1,156
Rick James
08/18/2012 10:30PM
Re: Query with GROUP BY not using Index  
1,097
Imran Akbar
08/24/2012 12:41PM
Re: Query with GROUP BY not using Index  
1,179
Øystein Grøvlen
08/28/2012 03:11AM
Re: Query with GROUP BY not using Index  
1,210
Imran Akbar
08/28/2012 06:21PM
Re: Query with GROUP BY not using Index  
1,545
Øystein Grøvlen
08/29/2012 01:28AM
Re: Query with GROUP BY not using Index  
1,079
Imran Akbar
08/29/2012 10:36AM
CONCAT and Index in where clause  
12,589
Aurelien PANIZZA
08/22/2012 08:45AM
Re: CONCAT and Index in where clause  
4,468
Øystein Grøvlen
08/23/2012 01:15AM
Re: CONCAT and Index in where clause  
3,492
Rick James
08/23/2012 09:13PM
Re: CONCAT and Index in where clause  
3,490
Aurelien PANIZZA
08/27/2012 09:53AM
Re: CONCAT and Index in where clause  
3,469
Øystein Grøvlen
08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason  
11,159
Vincent B.
08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason  
6,044
Jørgen Løland
08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason  
4,372
Vincent B.
08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason  
5,666
Rick James
08/22/2012 07:44PM
Order By Slows down Joins  
3,278
Sami BH
08/22/2012 09:12AM
Re: Order By Slows down Joins  
980
Rick James
08/23/2012 08:56PM
always uses filesort even after adding indexes  
2,221
Pranav Gore
08/22/2012 02:49AM
Re: always uses filesort even after adding indexes  
1,076
Rick James
08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS  
3,165
Paul Tsui
08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS  
1,428
Øystein Grøvlen
08/20/2012 05:16AM
CPU usage 99% - and query very slow - help  
4,213
irox ferenc
08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help  
1,708
Rick James
08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help  
2,389
robert eeeeee
08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help  
1,688
Øystein Grøvlen
08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.  
3,607
Andrej Andrejevic
07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.  
1,483
Rick James
07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.  
1,336
Andrej Andrejevic
07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.  
1,159
Andrej Andrejevic
07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.  
1,180
Rick James
07/25/2012 12:21AM
Index for Query  
2,321
dileep ch
07/17/2012 12:41AM
Re: Index for Query  
1,151
Rick James
07/17/2012 10:36PM
Re: Index for Query  
1,189
dileep ch
07/18/2012 11:52PM
Re: Index for Query  
1,812
Rick James
07/19/2012 09:49PM
best way to optimize this query  
2,447
Jap bn
07/14/2012 09:54AM
Re: best way to optimize this query  
1,435
Rick James
07/15/2012 10:11PM
Optimizer being overly aggressive  
2,319
Adrian Cornish
07/06/2012 08:18PM
Re: Optimizer being overly aggressive  
1,196
Rick James
07/10/2012 12:49PM
Re: Optimizer being overly aggressive  
1,200
Adrian Cornish
07/10/2012 08:54PM
multiple-column index and order by  
2,570
Raphael Hoffmann
07/06/2012 05:59PM
Re: multiple-column index and order by  
1,208
Rick James
07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization  
1,805
Edwin DeSouza
07/09/2012 11:15AM
performing mysqldump corrected query issue?  
2,164
Peter Sylvester
06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?  
1,198
Rick James
07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?  
1,011
Peter Sylvester
06/26/2012 02:08PM
difference between READ and SCAN  
1,895
Linhai Song
06/20/2012 04:05PM
Re: difference between READ and SCAN  
951
Rick James
06/20/2012 08:23PM
Re: difference between READ and SCAN  
1,267
Linhai Song
06/21/2012 12:19PM
to optimize a self join request  
1,765
Oracleuser user
06/14/2012 08:23AM
Re: to optimize a self join request  
1,220
Rick James
06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003  
1,961
ted strauss
06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003  
875
ted strauss
06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'  
2,490
liao zhifeng
06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,042
Rick James
06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,085
liao zhifeng
06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'  
1,110
Rick James
06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,241
liao zhifeng
06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,077
Rick James
06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,035
liao zhifeng
06/13/2012 10:35PM
Table does not support optimize...  
2,940
Piotr Ch
06/02/2012 12:58AM
Querying a fast subquery never returns  
1,830
Eric Coll
05/22/2012 05:15PM
Re: Querying a fast subquery never returns  
1,023
Eric Coll
05/22/2012 05:19PM
Re: Querying a fast subquery never returns  
1,276
Rick James
05/24/2012 12:40AM
Re: Querying a fast subquery never returns  
1,257
Eric Coll
05/25/2012 11:15AM
Re: Querying a fast subquery never returns  
1,106
Rick James
05/26/2012 10:59AM
table index optimization  
2,097
Matus Zeman
05/01/2012 10:55AM
Re: table index optimization  
1,018
Rick James
05/02/2012 07:08PM
Re: table index optimization  
1,183
Rick James
05/05/2012 09:07AM
Re: table index optimization  
1,015
Matus Zeman
05/17/2012 09:25AM
Re: table index optimization  
1,263
Matus Zeman
05/04/2012 08:20AM
Query execution plan  
2,569
Chris Slominski
05/08/2012 12:38PM
Re: Query execution plan  
1,107
Rick James
05/09/2012 09:35PM
Re: Query execution plan  
1,204
Chris Slominski
05/10/2012 08:29AM
Re: Query execution plan  
1,199
Rick James
05/11/2012 07:16PM
Re: Query execution plan  
1,275
Chris Slominski
05/14/2012 05:27AM
Re: Query execution plan  
1,027
Rick James
05/15/2012 07:22PM
Re: Query execution plan  
1,038
Chris Slominski
05/09/2012 11:08AM
limit & scala subquery  
1,997
jongse park
05/08/2012 10:33PM
Re: limit & scala subquery  
956
Rick James
05/09/2012 09:21PM
Mysql slow upadte  
1,541
krishna krishna
04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?  
2,539
Fernando Oliveira
04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?  
1,247
Rick James
04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?  
1,044
Fernando Oliveira
04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?  
1,303
Rick James
04/26/2012 07:59AM
Help with query/tables optimization  
1,893
Oleg Ivanov
04/14/2012 05:20AM
Re: Help with query/tables optimization  
1,139
Rick James
04/16/2012 12:05AM
Re: Help with query/tables optimization  
1,203
Oleg Ivanov
04/16/2012 11:53AM
Re: Help with query/tables optimization  
1,508
Oleg Ivanov
04/16/2012 12:04PM
Identical servers different plan for the same query  
2,702
Eric Coll
04/07/2012 01:20AM
Re: Identical servers different plan for the same query  
1,144
Eric Coll
04/10/2012 03:28PM
Re: Identical servers different plan for the same query  
1,193
Rick James
04/10/2012 10:29PM
Re: Identical servers different plan for the same query  
1,098
Eric Coll
04/11/2012 10:05AM
Re: Identical servers different plan for the same query  
1,196
Rick James
04/12/2012 08:56AM
Re: Identical servers different plan for the same query  
1,126
Eric Coll
04/12/2012 03:23PM
Re: Identical servers different plan for the same query  
2,301
Rick James
04/13/2012 03:49PM
Re: Identical servers different plan for the same query  
1,177
Eric Coll
04/07/2012 09:55AM
Re: Identical servers different plan for the same query  
1,154
irek kordirko
04/07/2012 02:54PM
Re: Identical servers different plan for the same query  
1,410
Rick James
04/08/2012 12:20PM
Re: Identical servers different plan for the same query  
1,505
Eric Coll
04/09/2012 10:24AM
Re: Identical servers different plan for the same query  
1,157
Eric Coll
04/09/2012 10:35AM
Re: Identical servers different plan for the same query  
1,120
Eric Coll
04/09/2012 10:37AM
Re: Identical servers different plan for the same query  
1,180
Eric Coll
04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5  
1,566
Edwin DeSouza
04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins  
1,575
Edwin DeSouza
04/10/2012 02:54PM
MySQL Optimizer Team Blog  
1,868
Edwin DeSouza
04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!  
1,640
Edwin DeSouza
04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6  
1,287
Edwin DeSouza
04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause  
1,528
Edwin DeSouza
04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization  
1,320
Edwin DeSouza
04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)  
1,754
Edwin DeSouza
04/10/2012 01:54PM
This topic has been moved.:  difference between READ and SCAN  
0
Linhai Song
06/20/2012 05:47PM
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