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Can we expect an enhancement for derived table merge optimization?  
3,416
Michael Hogue
01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,360
Rick James
01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,775
Roy Lyseng
01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,212
Rick James
01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,363
Roy Lyseng
01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,195
Rick James
01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,289
Roy Lyseng
01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,216
Roy Lyseng
01/11/2013 08:51AM
How to best optimize MYSQL Database  
2,210
Muhammad Usman
12/10/2012 03:45AM
Re: How to best optimize MYSQL Database  
1,194
Rick James
12/21/2012 12:49PM
mysql subquery query optimization question  
2,455
Yong Yim
01/12/2013 09:24AM
Re: mysql subquery query optimization question  
1,133
Rick James
01/13/2013 11:30AM
Create a New Datatype  
2,142
Andy Gurzynski
01/06/2013 01:00AM
Re: Create a New Datatype  
1,069
Rick James
01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys  
2,152
Edwin Desouza
12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"  
3,934
Sebastian Schött
12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"  
1,536
Rick James
12/08/2012 01:33PM
Complex query - need advise  
2,479
chris boer
11/03/2012 04:16PM
Re: Complex query - need advise  
1,236
chris boer
11/03/2012 04:24PM
Re: Complex query - need advise  
1,191
chris boer
11/04/2012 10:05AM
Re: Complex query - need advise  
1,514
Rick James
11/05/2012 11:12AM
Follow up on "Query Execution Plan"  
2,098
Chris Slominski
10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"  
1,163
Chris Slominski
10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"  
1,008
Chris Slominski
10/25/2012 06:15AM
JOIN query too slow  
2,179
N. Kovac
10/13/2012 11:52AM
Re: JOIN query too slow  
1,064
Peter Brawley
10/14/2012 10:26AM
Re: JOIN query too slow  
1,114
Rick James
10/16/2012 07:48PM
bulk update very slow  
4,507
james che
09/25/2012 02:51PM
Re: bulk update very slow  
1,697
james che
09/26/2012 02:58PM
Re: bulk update very slow  
1,694
Rick James
09/27/2012 08:19PM
Re: bulk update very slow  
2,300
Jørgen Løland
09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?  
2,459
Daniel Estrada
09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,321
Rick James
09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,326
Daniel Estrada
09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?  
1,053
Rick James
09/24/2012 11:43PM
Join? Union? I am so lost.  
2,025
Hank Reardon
09/17/2012 09:09AM
Re: Join? Union? I am so lost.  
1,057
Rick James
09/18/2012 07:48AM
How make indexes work with group by statement  
1,973
Adnan Raza
09/13/2012 12:48AM
Re: How make indexes work with group by statement  
1,105
Rick James
09/15/2012 10:34PM
Re: How make indexes work with group by statement  
1,151
Jørgen Løland
09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
2,364
Dominik Bieringer
09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
1,052
Rick James
09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27  
1,150
Øystein Grøvlen
09/06/2012 04:32AM
optimize the query  
2,141
ch srinivas
08/27/2012 10:47PM
Re: optimize the query  
1,099
Øystein Grøvlen
08/28/2012 01:43AM
Re: optimize the query  
994
ch srinivas
08/29/2012 04:15AM
Re: optimize the query  
1,062
Øystein Grøvlen
08/29/2012 04:39AM
Re: optimize the query  
969
ch srinivas
08/29/2012 05:38AM
Re: optimize the query  
1,031
Rick James
08/30/2012 07:20AM
Query with GROUP BY not using Index  
2,512
Imran Akbar
08/14/2012 01:06PM
Re: Query with GROUP BY not using Index  
1,188
Øystein Grøvlen
08/15/2012 02:46AM
Re: Query with GROUP BY not using Index  
1,132
Imran Akbar
08/16/2012 10:30AM
Re: Query with GROUP BY not using Index  
1,315
Øystein Grøvlen
08/17/2012 02:58AM
Re: Query with GROUP BY not using Index  
1,142
Rick James
08/18/2012 10:30PM
Re: Query with GROUP BY not using Index  
1,081
Imran Akbar
08/24/2012 12:41PM
Re: Query with GROUP BY not using Index  
1,164
Øystein Grøvlen
08/28/2012 03:11AM
Re: Query with GROUP BY not using Index  
1,196
Imran Akbar
08/28/2012 06:21PM
Re: Query with GROUP BY not using Index  
1,519
Øystein Grøvlen
08/29/2012 01:28AM
Re: Query with GROUP BY not using Index  
1,071
Imran Akbar
08/29/2012 10:36AM
CONCAT and Index in where clause  
12,347
Aurelien PANIZZA
08/22/2012 08:45AM
Re: CONCAT and Index in where clause  
4,401
Øystein Grøvlen
08/23/2012 01:15AM
Re: CONCAT and Index in where clause  
3,445
Rick James
08/23/2012 09:13PM
Re: CONCAT and Index in where clause  
3,429
Aurelien PANIZZA
08/27/2012 09:53AM
Re: CONCAT and Index in where clause  
3,421
Øystein Grøvlen
08/28/2012 02:50AM
Simple query spending too much time in 'statistics' state without reason  
11,086
Vincent B.
08/21/2012 06:19AM
Re: Simple query spending too much time in 'statistics' state without reason  
6,012
Jørgen Løland
08/24/2012 06:24AM
Re: Simple query spending too much time in 'statistics' state without reason  
4,350
Vincent B.
08/28/2012 01:53AM
Re: Simple query spending too much time in 'statistics' state without reason  
5,629
Rick James
08/22/2012 07:44PM
Order By Slows down Joins  
3,255
Sami BH
08/22/2012 09:12AM
Re: Order By Slows down Joins  
968
Rick James
08/23/2012 08:56PM
always uses filesort even after adding indexes  
2,201
Pranav Gore
08/22/2012 02:49AM
Re: always uses filesort even after adding indexes  
1,066
Rick James
08/22/2012 10:52PM
STRAIGHT_JOIN for OUTER JOINGS  
3,131
Paul Tsui
08/19/2012 08:28PM
Re: STRAIGHT_JOIN for OUTER JOINGS  
1,404
Øystein Grøvlen
08/20/2012 05:16AM
CPU usage 99% - and query very slow - help  
4,174
irox ferenc
08/03/2012 10:49AM
Re: CPU usage 99% - and query very slow - help  
1,690
Rick James
08/04/2012 01:36PM
Re: CPU usage 99% - and query very slow - help  
2,366
robert eeeeee
08/06/2012 01:04PM
Re: CPU usage 99% - and query very slow - help  
1,665
Øystein Grøvlen
08/15/2012 03:09AM
Execution plan: wrong index selected, very poor performance.  
3,566
Andrej Andrejevic
07/18/2012 10:31AM
Re: Execution plan: wrong index selected, very poor performance.  
1,463
Rick James
07/19/2012 10:07PM
Re: Execution plan: wrong index selected, very poor performance.  
1,324
Andrej Andrejevic
07/20/2012 01:38AM
Re: Execution plan: wrong index selected, very poor performance.  
1,146
Andrej Andrejevic
07/24/2012 04:27AM
Re: Execution plan: wrong index selected, very poor performance.  
1,169
Rick James
07/25/2012 12:21AM
Index for Query  
2,295
dileep ch
07/17/2012 12:41AM
Re: Index for Query  
1,129
Rick James
07/17/2012 10:36PM
Re: Index for Query  
1,177
dileep ch
07/18/2012 11:52PM
Re: Index for Query  
1,796
Rick James
07/19/2012 09:49PM
best way to optimize this query  
2,425
Jap bn
07/14/2012 09:54AM
Re: best way to optimize this query  
1,422
Rick James
07/15/2012 10:11PM
Optimizer being overly aggressive  
2,297
Adrian Cornish
07/06/2012 08:18PM
Re: Optimizer being overly aggressive  
1,177
Rick James
07/10/2012 12:49PM
Re: Optimizer being overly aggressive  
1,189
Adrian Cornish
07/10/2012 08:54PM
multiple-column index and order by  
2,540
Raphael Hoffmann
07/06/2012 05:59PM
Re: multiple-column index and order by  
1,196
Rick James
07/10/2012 12:55PM
From Months to Seconds with Subquery Materialization  
1,787
Edwin DeSouza
07/09/2012 11:15AM
performing mysqldump corrected query issue?  
2,143
Peter Sylvester
06/26/2012 01:12PM
Re: performing mysqldump corrected query issue?  
1,176
Rick James
07/01/2012 06:43PM
Re: performing mysqldump corrected query issue?  
1,003
Peter Sylvester
06/26/2012 02:08PM
difference between READ and SCAN  
1,881
Linhai Song
06/20/2012 04:05PM
Re: difference between READ and SCAN  
938
Rick James
06/20/2012 08:23PM
Re: difference between READ and SCAN  
1,247
Linhai Song
06/21/2012 12:19PM
to optimize a self join request  
1,745
Oracleuser user
06/14/2012 08:23AM
Re: to optimize a self join request  
1,202
Rick James
06/15/2012 08:19AM
Call out for FULL JOIN - bug #18003  
1,939
ted strauss
06/14/2012 10:23AM
Re: Call out for FULL JOIN - bug #18003  
866
ted strauss
06/14/2012 12:13PM
index cannot be used when passing 'int' to 'varchar'  
2,450
liao zhifeng
06/10/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,028
Rick James
06/11/2012 11:27PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,073
liao zhifeng
06/12/2012 12:48AM
Re: index cannot be used when passing 'int' to 'varchar'  
1,092
Rick James
06/12/2012 09:23PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,227
liao zhifeng
06/12/2012 11:16PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,062
Rick James
06/13/2012 07:15PM
Re: index cannot be used when passing 'int' to 'varchar'  
1,025
liao zhifeng
06/13/2012 10:35PM
Table does not support optimize...  
2,910
Piotr Ch
06/02/2012 12:58AM
Querying a fast subquery never returns  
1,800
Eric Coll
05/22/2012 05:15PM
Re: Querying a fast subquery never returns  
1,014
Eric Coll
05/22/2012 05:19PM
Re: Querying a fast subquery never returns  
1,261
Rick James
05/24/2012 12:40AM
Re: Querying a fast subquery never returns  
1,250
Eric Coll
05/25/2012 11:15AM
Re: Querying a fast subquery never returns  
1,090
Rick James
05/26/2012 10:59AM
table index optimization  
2,069
Matus Zeman
05/01/2012 10:55AM
Re: table index optimization  
1,006
Rick James
05/02/2012 07:08PM
Re: table index optimization  
1,170
Rick James
05/05/2012 09:07AM
Re: table index optimization  
1,002
Matus Zeman
05/17/2012 09:25AM
Re: table index optimization  
1,247
Matus Zeman
05/04/2012 08:20AM
Query execution plan  
2,542
Chris Slominski
05/08/2012 12:38PM
Re: Query execution plan  
1,088
Rick James
05/09/2012 09:35PM
Re: Query execution plan  
1,186
Chris Slominski
05/10/2012 08:29AM
Re: Query execution plan  
1,185
Rick James
05/11/2012 07:16PM
Re: Query execution plan  
1,259
Chris Slominski
05/14/2012 05:27AM
Re: Query execution plan  
1,018
Rick James
05/15/2012 07:22PM
Re: Query execution plan  
1,018
Chris Slominski
05/09/2012 11:08AM
limit & scala subquery  
1,976
jongse park
05/08/2012 10:33PM
Re: limit & scala subquery  
948
Rick James
05/09/2012 09:21PM
Mysql slow upadte  
1,522
krishna krishna
04/30/2012 06:09AM
1000 Columns, 1000 Tables, or what?  
2,506
Fernando Oliveira
04/19/2012 08:09AM
Re: 1000 Columns, 1000 Tables, or what?  
1,233
Rick James
04/20/2012 06:50PM
Re: 1000 Columns, 1000 Tables, or what?  
1,032
Fernando Oliveira
04/23/2012 08:10AM
Re: 1000 Columns, 1000 Tables, or what?  
1,291
Rick James
04/26/2012 07:59AM
Help with query/tables optimization  
1,873
Oleg Ivanov
04/14/2012 05:20AM
Re: Help with query/tables optimization  
1,128
Rick James
04/16/2012 12:05AM
Re: Help with query/tables optimization  
1,189
Oleg Ivanov
04/16/2012 11:53AM
Re: Help with query/tables optimization  
1,493
Oleg Ivanov
04/16/2012 12:04PM
Identical servers different plan for the same query  
2,673
Eric Coll
04/07/2012 01:20AM
Re: Identical servers different plan for the same query  
1,129
Eric Coll
04/10/2012 03:28PM
Re: Identical servers different plan for the same query  
1,172
Rick James
04/10/2012 10:29PM
Re: Identical servers different plan for the same query  
1,081
Eric Coll
04/11/2012 10:05AM
Re: Identical servers different plan for the same query  
1,176
Rick James
04/12/2012 08:56AM
Re: Identical servers different plan for the same query  
1,120
Eric Coll
04/12/2012 03:23PM
Re: Identical servers different plan for the same query  
2,288
Rick James
04/13/2012 03:49PM
Re: Identical servers different plan for the same query  
1,162
Eric Coll
04/07/2012 09:55AM
Re: Identical servers different plan for the same query  
1,134
irek kordirko
04/07/2012 02:54PM
Re: Identical servers different plan for the same query  
1,400
Rick James
04/08/2012 12:20PM
Re: Identical servers different plan for the same query  
1,484
Eric Coll
04/09/2012 10:24AM
Re: Identical servers different plan for the same query  
1,144
Eric Coll
04/09/2012 10:35AM
Re: Identical servers different plan for the same query  
1,103
Eric Coll
04/09/2012 10:37AM
Re: Identical servers different plan for the same query  
1,167
Eric Coll
04/09/2012 10:42AM
MySQL Optimizer: Improved DBT-3 Results with MySQL 5.6.5  
1,553
Edwin DeSouza
04/10/2012 05:31PM
MySQL Optimizer: Improvements for many-table joins  
1,558
Edwin DeSouza
04/10/2012 02:54PM
MySQL Optimizer Team Blog  
1,850
Edwin DeSouza
04/10/2012 01:58PM
MySQL Optimizer: Index Condition Pushdown to the rescue!  
1,624
Edwin DeSouza
04/10/2012 01:56PM
MySQL Optimizer: Semi-join in MySQL 5.6  
1,273
Edwin DeSouza
04/10/2012 01:56PM
MySQL Optimizer: On queries with many values in the IN clause  
1,515
Edwin DeSouza
04/10/2012 01:55PM
MySQL Optimizer: Faster subqueries with materialization  
1,306
Edwin DeSouza
04/10/2012 01:54PM
MySQL Optimizer: Structured EXPLAIN (JSON)  
1,742
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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