MySQL Forums
Forum List  »  Optimizer & Parser

Advanced Search
New Topic
Pages:
« 1 2 3 4 5
...
18 »

Subject
Views
Written By
Posted
Need help understanding optimizer behavior in 5.6  
1,612
Aaron Craven
06/22/2015 08:30AM
Re: Need help understanding optimizer behavior in 5.6  
814
Aaron Craven
06/22/2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6  
769
Rick James
06/23/2015 07:00PM
Re: Need help understanding optimizer behavior in 5.6  
769
Aaron Craven
06/24/2015 06:22AM
Re: Need help understanding optimizer behavior in 5.6  
704
Rick James
06/25/2015 11:37PM
Re: Need help understanding optimizer behavior in 5.6  
731
Aaron Craven
06/26/2015 06:56AM
Re: Need help understanding optimizer behavior in 5.6  
735
Øystein Grøvlen
06/30/2015 05:46AM
Re: Need help understanding optimizer behavior in 5.6  
1,149
Aaron Craven
06/30/2015 08:06AM
Re: Need help understanding optimizer behavior in 5.6  
751
Aaron Craven
06/30/2015 08:16AM
Re: Need help understanding optimizer behavior in 5.6  
833
Øystein Grøvlen
07/01/2015 03:49AM
Re: Need help understanding optimizer behavior in 5.6  
866
Aaron Craven
07/01/2015 06:48AM
Re: Need help understanding optimizer behavior in 5.6  
786
Edwin Desouza
07/01/2015 03:05PM
Re: Need help understanding optimizer behavior in 5.6  
777
Aaron Craven
07/02/2015 07:48AM
MySQL 5.7: Optimizer Trace and EXPLAIN FORMAT=JSON  
1,610
Edwin Desouza
05/25/2015 10:41AM
foreign key creation in a huge database  
1,607
Raffael Vendrametto
03/05/2015 04:05PM
Please do NOT duplicate posts  
821
Peter Brawley
03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version  
1,982
ch srinivas
03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version  
901
Peter Brawley
03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version  
841
Rick James
03/04/2015 08:18PM
Query optimisation advice  
1,851
Paul Feely
01/08/2015 11:02PM
Re: Query optimisation advice  
961
Rick James
01/10/2015 01:22AM
Re: Query optimisation advice  
898
Paul Feely
01/11/2015 05:50PM
Re: Query optimisation advice  
939
Rick James
01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)  
1,781
Afaque Ahmad Siddiqui
12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)  
942
Rick James
12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)  
980
Rick James
12/12/2014 08:36PM
MySQL cash optimization  
1,961
Sasha Katsman
11/27/2014 06:33AM
Re: MySQL cash optimization  
1,168
Peter Brawley
11/27/2014 04:34PM
Re: MySQL cash optimization  
858
Sasha Katsman
12/09/2014 04:33AM
Re: MySQL cache optimization  
812
Peter Brawley
12/09/2014 12:28PM
how to tune for optimizer_search_depth?  
1,933
jongse park
12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?  
1,261
Rick James
12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?  
1,221
Øystein Grøvlen
12/08/2014 05:32AM
MySQL Optimizer Cost Model  
1,728
Edwin Desouza
10/24/2014 10:37AM
Need help to create index on join statments  
1,872
Neil Sorathia
10/08/2014 06:24PM
Re: Need help to create index on join statments  
883
Neil Sorathia
10/09/2014 09:46AM
Re: Need help to create index on join statments  
989
Rick James
10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes  
1,624
Edwin Desouza
10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements  
1,855
Edwin Desouza
10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite  
1,808
Edwin Desouza
10/01/2014 08:53AM
Intermediate Query Results  
2,560
Ashwini Singh
09/12/2014 08:37AM
Re: Intermediate Query Results  
1,243
Rick James
09/13/2014 09:23PM
Re: Intermediate Query Results  
1,291
Øystein Grøvlen
09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters  
2,070
ch srinivas
06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters  
1,032
Peter Brawley
06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters  
976
Øystein Grøvlen
08/28/2014 03:47PM
Help me to optimize my sql query  
1,944
GAURAV JAIN
08/21/2014 07:29AM
Re: Help me to optimize my sql query  
969
Rick James
08/22/2014 06:50AM
How could this SQL be optimized?  
1,981
feng guo
05/29/2014 11:26PM
Re: How could this SQL be optimized?  
990
Øystein Grøvlen
05/30/2014 02:41AM
Re: How could this SQL be optimized?  
1,064
feng guo
05/30/2014 02:46AM
Re: How could this SQL be optimized?  
914
Marion Gordon
08/21/2014 11:03PM
Re: How could this SQL be optimized?  
930
Øystein Grøvlen
08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'  
1,999
park albert
08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'  
1,084
Rick James
08/20/2014 07:34PM
Expland and slow-query don't agree  
1,746
Aram Mirzadeh
08/03/2014 06:24AM
Re: Expland and slow-query don't agree  
868
Rick James
08/04/2014 01:23PM
Query not using index sporadically  
2,089
Vinay NP
06/13/2014 07:51AM
Re: Query not using index sporadically  
963
Rick James
06/18/2014 02:48PM
[HELP] Subquery Optimization  
2,012
Pinoy Central
05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements  
1,558
Edwin Desouza
05/15/2014 12:29PM
BETWEEN a DATE and a hard place  
1,840
Gerald Bayles
04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place  
938
Rick James
04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place  
1,001
Gerald Bayles
04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place  
995
Rick James
04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place  
1,121
Gerald Bayles
04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place  
928
Rick James
04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place  
968
Gerald Bayles
04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place  
1,018
Gerald Bayles
05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place  
1,071
Rick James
05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7  
1,629
Edwin Desouza
04/22/2014 10:03AM
Access mysql blob data from stored procedure  
2,538
Kalpesh g
04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure  
1,064
Peter Brawley
04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
2,811
Andre Mikulec
03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,284
Rick James
03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,188
Rick James
03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day  
2,864
Blake Harps
02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,178
Øystein Grøvlen
02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,258
Mattias Jonsson
02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,224
Blake Harps
02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,146
Blake Harps
02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,076
Edwin Desouza
02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,150
Rick James
02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,123
Blake Harps
03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,209
Mattias Jonsson
02/17/2014 04:29PM
Subquery with range uses filesort  
3,290
David Marcus
11/16/2013 02:42PM
Re: Subquery with range uses filesort  
1,249
Rick James
11/17/2013 07:42PM
Re: Subquery with range uses filesort  
1,229
David Marcus
11/17/2013 08:01PM
Re: Subquery with range uses filesort  
1,208
Rick James
11/18/2013 04:33PM
Re: Subquery with range uses filesort  
1,727
David Marcus
11/18/2013 07:54PM
Re: Subquery with range uses filesort  
1,391
Rick James
11/19/2013 04:10PM
Re: Subquery with range uses filesort  
1,281
David Marcus
11/19/2013 08:36PM
Re: Subquery with range uses filesort  
1,389
Rick James
11/21/2013 02:55PM
Re: Subquery with range uses filesort  
1,585
David Marcus
12/05/2013 03:46PM
Re: Subquery with range uses filesort  
1,205
Rick James
12/07/2013 02:10PM
Re: Subquery with range uses filesort  
1,222
David Marcus
12/09/2013 06:08PM
Re: Subquery with range uses filesort  
1,221
David Marcus
12/14/2013 09:51PM
Re: Subquery with range uses filesort  
1,201
David Marcus
12/14/2013 10:17PM
Re: Subquery with range uses filesort  
1,286
Rick James
12/15/2013 11:29PM
Re: Subquery with range uses filesort  
1,280
David Marcus
12/17/2013 06:58PM
Re: Subquery with range uses filesort  
1,213
Rick James
12/18/2013 05:49PM
Re: Subquery with range uses filesort  
1,244
David Marcus
12/18/2013 08:28PM
Re: Subquery with range uses filesort  
1,324
Rick James
12/19/2013 10:13PM
Re: Subquery with range uses filesort  
1,284
David Marcus
12/19/2013 10:28PM
Re: Subquery with range uses filesort  
1,156
Rick James
12/20/2013 07:06PM
Re: Subquery with range uses filesort  
1,258
David Marcus
12/21/2013 07:36AM
Re: Subquery with range uses filesort  
1,282
Rick James
12/22/2013 10:01AM
Re: Subquery with range uses filesort  
1,327
David Marcus
12/22/2013 10:45AM
Re: Subquery with range uses filesort  
1,182
David Marcus
12/25/2013 09:30PM
Optimizer executes inperformant subquery first  
2,980
Martin Kirchner
12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first  
1,150
Rick James
12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first  
1,409
Martin Kirchner
12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first  
1,521
Øystein Grøvlen
12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first  
1,338
Martin Kirchner
12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first  
1,224
Øystein Grøvlen
12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first  
1,122
Martin Kirchner
12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first  
1,082
Øystein Grøvlen
12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first  
1,093
Rick James
12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first  
1,205
Martin Kirchner
12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first  
1,220
Rick James
12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first  
1,138
Øystein Grøvlen
12/19/2013 02:49AM
my.cnf  
2,063
Juan Medina
10/27/2013 02:08PM
Re: my.cnf  
1,020
Rick James
10/29/2013 07:12PM
my.cnf optimization please help  
3,297
Ivan Kratunkov
10/28/2013 03:39AM
Re: my.cnf optimization please help  
1,176
Rick James
10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7  
1,718
Edwin Desouza
10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query  
1,967
George Maharis
10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query  
1,059
Rick James
10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query  
1,034
George Maharis
10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query  
1,053
Rick James
10/16/2013 08:36PM
MySQL My.cnf Config Help  
2,167
Mathieu Louis
10/03/2013 09:32PM
Very slow dependent subquery  
2,275
patrick canarelli
09/18/2013 03:06AM
Re: Very slow dependent subquery  
1,353
Øystein Grøvlen
09/18/2013 07:06AM
Re: Very slow dependent subquery  
1,289
patrick canarelli
09/18/2013 07:51AM
Re: Very slow dependent subquery  
1,255
Øystein Grøvlen
09/18/2013 02:57PM
Re: Very slow dependent subquery  
1,161
Peter Brawley
09/18/2013 02:13PM
Re: Very slow dependent subquery  
1,121
patrick canarelli
09/18/2013 03:10PM
Re: Very slow dependent subquery  
1,126
Rick James
09/24/2013 10:04PM
Re: Very slow dependent subquery  
1,400
patrick canarelli
09/25/2013 12:53AM
big database +1 million rows/days  
2,598
khaoula el hammoumi
09/11/2013 04:06AM
Re: big database +1 million rows/days  
1,091
khaoula el hammoumi
09/12/2013 01:37AM
Re: big database +1 million rows/days  
1,074
Rick James
09/13/2013 10:59PM
Optimize query join with 25,000 records  
2,102
Andrea Presazzi
08/26/2013 02:27AM
Re: Optimize query join with 25,000 records  
1,060
Rick James
08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter  
3,258
Chad B
08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,513
Chad B
08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,266
Rick James
08/31/2013 04:13PM
query index not used  
1,701
Adrian Petre
08/15/2013 05:23AM
Re: query index not used  
953
Rick James
08/31/2013 03:41PM
optimize request with order by and limit  
2,326
yassine laouija
07/18/2013 05:26AM
Re: optimize request with order by and limit  
1,237
Rick James
07/20/2013 10:25PM
Re: optimize request with order by and limit  
1,056
yassine laouija
07/22/2013 09:46AM
Re: optimize request with order by and limit  
980
Rick James
07/23/2013 08:58AM
Re: optimize request with order by and limit  
1,033
yassine laouija
07/26/2013 04:07AM
Re: optimize request with order by and limit  
1,046
Rick James
07/26/2013 11:53PM
Re: optimize request with order by and limit  
1,126
yassine laouija
07/29/2013 04:40AM
Re: optimize request with order by and limit  
1,040
Rick James
08/01/2013 10:39PM
providing a single line for multiple records from a table  
1,918
raja chacham
07/23/2013 09:56AM
Re: providing a single line for multiple records from a table  
944
Rick James
07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates  
3,390
Anthony Galano
05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,448
Rick James
05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,372
Anthony Galano
05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,275
Rick James
05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,210
Anthony Galano
05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,236
Rick James
06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,385
Anthony Galano
06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
2,529
Rick James
06/04/2013 11:49PM
Query optimization  
2,365
Jan Kowalski
05/10/2013 05:35AM
Re: Query optimization  
1,158
Rick James
05/12/2013 08:42PM
Re: Query optimization  
1,117
Jan Kowalski
05/15/2013 06:45AM
Re: Query optimization  
1,129
Jan Kowalski
05/15/2013 08:35AM
Re: Query optimization  
1,221
Rick James
05/16/2013 08:18AM
Re: Query optimization  
1,147
Jan Kowalski
05/17/2013 03:52AM
Re: Query optimization  
1,137
Rick James
05/17/2013 11:47PM
Re: Query optimization  
1,042
Jan Kowalski
05/21/2013 08:51AM
Re: Query optimization  
1,125
Jan Kowalski
05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?  
1,781
Edwin Desouza
05/02/2013 10:05AM
Index optimized left join with group by  
2,894
Michal Kurgan
03/11/2013 05:41PM
Re: Index optimized left join with group by  
1,135
Øystein Grøvlen
03/12/2013 04:16AM
Select last row that is less than or equal to a date  
5,913
David Marcus
01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date  
1,576
Rick James
01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date  
1,600
David Marcus
01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date  
1,385
Rick James
01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date  
1,511
David Marcus
01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date  
1,309
Rick James
01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date  
1,320
David Marcus
01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date  
1,743
Øystein Grøvlen
01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date  
1,412
David Marcus
01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date  
1,345
Øystein Grøvlen
02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date  
1,426
David Marcus
02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date  
1,369
Øystein Grøvlen
02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date  
1,394
David Marcus
02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date  
1,288
Øystein Grøvlen
02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date  
1,301
David Marcus
02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date  
1,385
Rick James
02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date  
1,878
David Marcus
02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date  
1,380
Rick James
02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date  
1,460
David Marcus
02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date  
1,405
Rick James
02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date  
1,415
David Marcus
02/03/2013 04:15PM
Very slow query, help please  
2,445
Jaume Roca
01/29/2013 10:18AM
Re: Very slow query, help please  
1,324
Øystein Grøvlen
01/30/2013 05:12AM
Re: Very slow query, help please  
1,292
Rick James
01/30/2013 08:38AM
Re: Very slow query, help please  
1,354
Jaume Roca
01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away  
1,824
Edwin Desouza
01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!  
7,632
Sayed Ali
01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!  
2,715
Rick James
01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!  
1,941
Edwin Desouza
01/22/2013 05:58PM
Pages:
« 1 2 3 4 5
...
18 »

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.