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•   Announcing April 2026 Releases featuring MySQL Server 9.7.0, 8.4.9 and 8.0.46 04/27/2026 03:22AM

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MySQL-8.0 performance degradation vs MySQL-5.7  
1,956
Eugene Polovnikov
09/10/2020 04:17AM
Re: MySQL-8.0 performance degradation vs MySQL-5.7  
729
Peter Brawley
09/10/2020 09:17AM
Re: MySQL-8.0 performance degradation vs MySQL-5.7  
763
Eugene Polovnikov
09/11/2020 01:19AM
Re: MySQL-8.0 performance degradation vs MySQL-5.7  
691
Peter Brawley
09/11/2020 09:33AM
Query optimization and index suggestion needed  
1,110
Pandit P
09/09/2020 10:01AM
Re: Query optimization and index suggestion needed  
607
Peter Brawley
09/09/2020 10:34AM
Re: Query optimization and index suggestion needed  
593
Pandit P
09/09/2020 01:08PM
Re: Query optimization and index suggestion needed  
585
Peter Brawley
09/09/2020 02:36PM
Re: Query optimization and index suggestion needed  
543
Pandit P
09/09/2020 11:38PM
How to design my data structure to optimize it.thank you  
1,103
xiangsheng jiang
09/05/2020 10:14PM
Re: How to design my data structure to optimize it.thank you  
562
Peter Brawley
09/06/2020 11:13AM
Commit is slow in Mysql 5.7  
1,427
Himanshu Patel
09/05/2020 02:49AM
Re: Commit is slow in Mysql 5.7  
686
Peter Brawley
09/05/2020 01:04PM
MySQL Performance : Understanding InnoDB IO Internals & "Checkpointing"  
921
Edwin Desouza
08/13/2020 06:59PM
MySQL 8.0 Indexes, Histograms, and Other Ways to Speed Up Your Queries  
891
Edwin Desouza
08/04/2020 07:57PM
Speeding up large searches  
1,078
Greg Knox
08/03/2020 11:07AM
Re: Speeding up large searches  
498
Peter Brawley
08/03/2020 12:23PM
select into outfile by chunk  
1,210
Wueh Chia Lee
07/16/2020 02:10AM
Re: select into outfile by chunk  
581
Peter Brawley
07/16/2020 10:30AM
MYSQL issues with query performance  
1,380
Wouter Platteeuw
06/24/2020 02:47PM
Re: MYSQL issues with query performance  
679
Peter Brawley
06/24/2020 06:55PM
Re: MYSQL issues with query performance  
687
Wouter Platteeuw
06/29/2020 06:32AM
Re: MYSQL issues with query performance  
635
Peter Brawley
06/29/2020 02:55PM
Re: MYSQL issues with query performance  
643
Wouter Platteeuw
06/30/2020 06:13AM
Re: MYSQL issues with query performance  
601
Peter Brawley
06/30/2020 08:15AM
Re: MYSQL issues with query performance  
705
Wouter Platteeuw
06/30/2020 10:09AM
Re: MYSQL issues with query performance  
626
Peter Brawley
06/30/2020 03:50PM
Re: MYSQL issues with query performance  
641
Wouter Platteeuw
07/01/2020 08:04AM
MySQL Performance : TPCC "Mystery" [SOLVED]  
1,055
Edwin Desouza
06/30/2020 04:59PM
slow performance, parameters or size and amounts of databases?  
1,207
Kristof Schevernels
06/19/2020 08:20AM
Re: slow performance, parameters or size and amounts of databases?  
731
Peter Brawley
06/19/2020 10:37AM
Yet another RAM question  
1,210
Nuno Donato
05/16/2020 06:18AM
Re: Yet another RAM question  
639
Peter Brawley
05/16/2020 08:48AM
MyISAM move from 5.1 to 5.7 - performance simple SELECT  
988
Christine Antoine
05/13/2020 03:02AM
MySQL DDL performance  
1,246
Stepan Furman
04/06/2020 05:46AM
Re: MySQL DDL performance  
574
Edwin Desouza
04/30/2020 03:00PM
MySQL 8.0.20 Performance : New InnoDB Double Write Buffer in Action  
1,244
Edwin Desouza
04/30/2020 02:59PM
Default of (var)binary column shown as hex if query this from information_schema even with --skip-binary-as-hex flag  
2,310
Stepan Furman
04/02/2020 03:57AM
Long start service MySQL 5.5 on Win 16  
1,269
Vladimir Gusev
03/30/2020 04:28AM
Re: Long start service MySQL 5.5 on Win 16  
539
Peter Brawley
03/30/2020 08:25AM
Re: Long start service MySQL 5.5 on Win 16  
557
Edwin Desouza
03/30/2020 10:23AM
Performance benchmark  
1,064
mmmm mmmm
03/16/2020 05:55PM
Re: Performance benchmark  
539
Peter Brawley
03/20/2020 06:21PM
Re: Performance benchmark  
528
Edwin Desouza
03/20/2020 07:38PM
Scaling mysql  
948
mmmm mmmm
03/20/2020 05:15PM
High memory used by MySQL  
1,961
Damian Kolany
02/12/2020 02:45AM
Re: High memory used by MySQL  
1,090
Peter Brawley
02/12/2020 11:41AM
Re: High memory used by MySQL  
862
Damian Kolany
02/13/2020 09:24AM
Re: High memory used by MySQL  
900
Peter Brawley
02/13/2020 11:49AM
Re: High memory used by MySQL  
880
Damian Kolany
02/14/2020 09:05AM
Re: High memory used by MySQL  
825
Peter Brawley
02/14/2020 11:06AM
Re: High memory used by MySQL  
893
Damian Kolany
03/02/2020 04:12AM
Re: High memory used by MySQL  
744
Peter Brawley
03/02/2020 04:17PM
Re: High memory used by MySQL  
631
Edwin Desouza
03/02/2020 08:35PM
Re: High memory used by MySQL  
691
Edwin Desouza
03/02/2020 08:36PM
Re: High memory used by MySQL  
857
Damian Kolany
03/03/2020 06:12AM
Re: High memory used by MySQL  
698
Peter Brawley
03/03/2020 11:51AM
SQL performance tuning advice  
1,459
Oliver C
02/21/2020 09:58AM
Re: SQL performance tuning advice  
606
Peter Brawley
02/21/2020 11:58AM
Re: SQL performance tuning advice  
603
Edwin Desouza
02/21/2020 06:39PM
Re: SQL performance tuning advice  
606
Oliver C
02/22/2020 08:02AM
why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
2,722
Sudarshan m
01/28/2020 12:09PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,165
Edwin Desouza
01/28/2020 03:42PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
990
Sudarshan m
01/29/2020 04:05AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,053
Peter Brawley
01/28/2020 06:42PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,022
Sudarshan m
01/29/2020 04:02AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
882
Sudarshan m
01/31/2020 04:10AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
936
Peter Brawley
01/31/2020 10:15AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
897
Edwin Desouza
01/31/2020 11:41AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
889
Sudarshan m
02/03/2020 05:01AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
921
Peter Brawley
02/03/2020 11:00AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
841
Sudarshan m
02/06/2020 05:01AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
867
Peter Brawley
02/06/2020 06:50AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,003
Sudarshan m
02/03/2020 04:54AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
823
Frederic Descamps
02/03/2020 12:35PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
832
Sudarshan m
02/06/2020 04:32AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
871
Frederic Descamps
02/06/2020 11:56PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,067
Edwin Desouza
02/07/2020 12:03AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,079
Sudarshan m
02/10/2020 09:09AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
917
Peter Brawley
02/10/2020 09:45AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
897
Edwin Desouza
02/10/2020 06:16PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
2,361
Sudarshan m
02/11/2020 04:13AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,032
Edwin Desouza
02/11/2020 11:14AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
979
Edwin Desouza
02/11/2020 11:16AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?  
1,013
Peter Brawley
02/11/2020 12:45PM
MySQL 8.0: Hash Join  
944
Edwin Desouza
02/09/2020 05:09PM
MySQL Server 5.1 max output  
1,538
Sugihono Budiman
02/07/2020 10:34AM
Re: MySQL Server 5.1 max output  
596
Peter Brawley
02/07/2020 12:19PM
Re: MySQL Server 5.1 max output  
603
Bobby Male
02/08/2020 08:37AM
Re: MySQL Server 5.1 max output  
568
Peter Brawley
02/08/2020 10:41AM
Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
2,867
anand aundhekar
09/18/2019 11:26PM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
1,201
Peter Brawley
09/19/2019 09:21AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
954
anand aundhekar
09/20/2019 03:26AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
896
Peter Brawley
09/20/2019 09:57AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
976
anand aundhekar
09/24/2019 03:09AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
891
Peter Brawley
09/24/2019 10:06AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
1,055
anand aundhekar
10/11/2019 12:18AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
2,302
Peter Brawley
10/15/2019 02:12PM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
1,126
anand aundhekar
01/27/2020 12:44AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
1,162
Peter Brawley
01/27/2020 12:34PM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
892
anand aundhekar
02/06/2020 01:14AM
Re: Inserts in MySQL 8 are slower than Inserts in MySQL 5.6  
944
Peter Brawley
02/06/2020 02:28PM
MySQL 5.7 simple count query sometimes fast and sometimes very slow  
1,673
Li Steven
12/23/2019 02:10AM
Re: MySQL 5.7 simple count query sometimes fast and sometimes very slow  
637
Peter Brawley
01/15/2020 11:55AM
MySQL 8.0: Simple way to figure out why your recursive CTE is running away  
1,001
Edwin Desouza
01/15/2020 06:06AM
SHOW FULL TABLES - Very Slow  
1,410
Sreedhar Vengala
12/19/2019 11:18PM
MySQL 8.0: AntiJoin  
910
Edwin Desouza
12/18/2019 07:53AM
Mysql GROUP BY performance realle slow on views  
1,210
Vincenzo Stigliano
12/15/2019 03:53AM
Re: Mysql GROUP BY performance realle slow on views  
547
Peter Brawley
12/15/2019 10:35AM
Bad order by performance (5.7.12 under Aurora)  
2,319
Nicola Farina
11/26/2019 03:43AM
Re: Bad order by performance (5.7.12 under Aurora)  
710
Frederic Descamps
11/26/2019 01:46PM
Re: Bad order by performance (5.7.12 under Aurora)  
836
Peter Brawley
11/26/2019 02:05PM
Re: Bad order by performance (5.7.12 under Aurora)  
798
Nicola Farina
11/26/2019 03:29PM
Re: Bad order by performance (5.7.12 under Aurora)  
815
Peter Brawley
11/26/2019 05:00PM
Re: Bad order by performance (5.7.12 under Aurora)  
745
Nicola Farina
11/27/2019 02:03AM
Re: Bad order by performance (5.7.12 under Aurora)  
791
Frederic Descamps
11/27/2019 04:21AM
Re: Bad order by performance (5.7.12 under Aurora)  
766
Nicola Farina
11/27/2019 05:46AM
MySQL 8.0 Performance: Scalability & Benchmarks (2019)  
1,220
Edwin Desouza
10/02/2019 11:05AM
MySQL Performance Tuning: The Perfect Scalability  
1,192
Edwin Desouza
09/21/2019 04:16PM
MySQL 8.0 - View Performance  
2,184
dino cummings
09/20/2019 07:47PM
Re: MySQL 8.0 - View Performance  
1,973
Peter Brawley
09/20/2019 09:14PM
Re: MySQL 8.0 - View Performance  
823
dino cummings
09/20/2019 10:29PM
Re: MySQL 8.0 - View Performance  
844
Peter Brawley
09/20/2019 11:18PM
Re: MySQL 8.0 - View Performance  
970
dino cummings
09/21/2019 12:18AM
Mysql 8 memory leak  
2,396
Pavel Dvořák
09/17/2019 03:58PM
Re: Mysql 8 memory leak  
992
Peter Brawley
09/17/2019 07:14PM
Re: Mysql 8 memory leak  
1,702
Pavel Dvořák
09/18/2019 02:41AM
Re: Mysql 8 memory leak  
908
Pavel Dvořák
09/18/2019 02:44AM
Re: Mysql 8 memory leak  
917
Peter Brawley
09/18/2019 09:38AM
Re: Mysql 8 memory leak  
897
Pavel Dvořák
09/19/2019 04:56AM
MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
2,867
Christine Antoine
07/17/2019 08:30AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
733
Olivier Dasini
07/18/2019 02:55AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
796
Christine Antoine
07/18/2019 03:11AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
720
Olivier Dasini
07/18/2019 03:52AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
754
Christine Antoine
07/18/2019 04:01AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
742
Olivier Dasini
07/18/2019 04:09AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
751
Christine Antoine
07/18/2019 04:20AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
712
Olivier Dasini
07/18/2019 04:28AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
679
Christine Antoine
07/18/2019 04:29AM
Re: MySQL 5.7 : InnoDB. 2 Deletes query using index but... too many rows locked and cause deadlock  
738
james wang
08/19/2019 02:44AM
MySQL8.0.16 TPC-C Benchmark on Persistent Memory  
2,812
Shohei Matsuura
07/12/2019 12:28AM
MySQL 5.6 Maximum Database instance  
1,714
Edgar Abellana
06/07/2019 07:10PM
Re: MySQL 5.6 Maximum Database instance  
711
Peter Brawley
06/07/2019 07:42PM
Re: MySQL 5.6 Maximum Database instance  
644
Edgar Abellana
06/07/2019 08:46PM
MySQL 8.0: Scalability & Benchmarks  
1,196
Edwin Desouza
05/31/2019 10:20PM
MySQL 8.0: Performance Tuning  
1,291
Edwin Desouza
05/31/2019 10:20PM
Help with MYSQL Very high processes.  
1,990
Miguel Bueno Joshimar
05/14/2019 07:30PM
Re: Help with MYSQL Very high processes.  
726
Peter Brawley
05/14/2019 09:41PM
MySQL 8 - terrible performance  
12,941
Hans Meiser
02/11/2019 02:09AM
Re: MySQL 8 - terrible performance  
3,930
Peter Brawley
02/11/2019 10:47AM
Re: MySQL 8 - terrible performance  
3,363
Edwin Desouza
02/11/2019 11:55AM
Re: MySQL 8 - terrible performance  
3,064
Edwin Desouza
02/11/2019 12:52PM
Re: MySQL 8 - terrible performance  
2,757
Benoit St-Jean
02/11/2019 08:13PM
Re: MySQL 8 - terrible performance  
2,697
Frederic Descamps
02/12/2019 02:59AM
Re: MySQL 8 - terrible performance  
2,898
Hans Meiser
02/13/2019 03:36AM
Re: MySQL 8 - terrible performance  
2,465
Frederic Descamps
02/14/2019 12:28AM
Re: MySQL 8 - terrible performance  
2,509
Hans Meiser
02/14/2019 03:33AM
Re: MySQL 8 - terrible performance  
2,221
Frederic Descamps
02/15/2019 03:32AM
Re: MySQL 8 - terrible performance  
2,256
Hans Meiser
02/15/2019 05:23AM
Re: MySQL 8 - terrible performance  
2,092
Hans Meiser
03/18/2019 05:19AM
Re: MySQL 8 - terrible performance  
2,849
Edwin Desouza
03/18/2019 10:42AM
Re: MySQL 8 - terrible performance  
3,207
Dimitri Kravtchuk
04/30/2019 02:21PM
High memory usage on mysql slave server  
3,612
Santosh Bhabal
04/09/2019 05:25AM
Re: High memory usage on mysql slave server  
898
Peter Brawley
04/09/2019 10:38AM
Re: High memory usage on mysql slave server  
937
Santosh Bhabal
04/10/2019 05:57AM
Re: High memory usage on mysql slave server  
939
Peter Brawley
04/10/2019 09:59AM
Re: High memory usage on mysql slave server  
982
Santosh Bhabal
04/10/2019 09:52PM
Re: High memory usage on mysql slave server  
1,003
Santosh Bhabal
04/10/2019 09:54PM
Re: High memory usage on mysql slave server  
898
Santosh Bhabal
04/10/2019 09:56PM
Re: High memory usage on mysql slave server  
847
Peter Brawley
04/10/2019 10:14PM
Re: High memory usage on mysql slave server  
921
Santosh Bhabal
04/10/2019 10:46PM
Re: High memory usage on mysql slave server  
823
Santosh Bhabal
04/12/2019 04:35AM
Re: High memory usage on mysql slave server  
929
Peter Brawley
04/12/2019 09:34AM
Re: High memory usage on mysql slave server  
933
Santosh Bhabal
04/15/2019 06:26AM
Re: High memory usage on mysql slave server  
954
Santosh Bhabal
04/15/2019 06:28AM
Re: High memory usage on mysql slave server  
1,275
Peter Brawley
04/15/2019 08:31AM
skip-name-resolve and mysql users  
1,841
Amy Ries
04/12/2019 07:46AM
Re: skip-name-resolve and mysql users  
721
Peter Brawley
04/12/2019 01:57PM
MySQL 8.0.15 INNODB table Dead slow query  
1,819
balasubramanya balu
03/30/2019 10:05AM
Re: MySQL 8.0.15 INNODB table Dead slow query  
692
Peter Brawley
03/30/2019 10:00PM
MySQL 8.0: Connection Handling and Scaling  
1,125
Edwin Desouza
03/19/2019 10:18AM
MYSQL 5.6 - SHOW TABLES LIKE '%' taking longer  
1,132
Sukhjinder Bhullar
03/11/2019 08:09PM
optimizing an update  
1,386
Paul Coene
03/03/2019 10:02AM
Re: optimizing an update  
662
Peter Brawley
03/03/2019 11:18AM
MySQL 8.0: New Index Features  
1,341
Edwin Desouza
02/08/2019 11:18AM
MySQL Performance Tuning (Pre-FOSDEM 2019)  
1,262
Edwin Desouza
02/08/2019 11:13AM
This topic has been moved.:  Speeding up large searches  
0
Greg Knox
08/03/2020 12:23PM
This topic has been moved.:  MYSQL issues with query performance  
0
Wouter Platteeuw
06/24/2020 06:21PM
This topic has been moved.:  MySQL 5.6 Maximum Database instance  
0
Edgar Abellana
06/07/2019 07:43PM
This topic has been moved.:  Help with MYSQL Very high processes.  
7
Miguel Bueno Joshimar
05/14/2019 09:32PM
This topic has been moved.:  High memory usage on mysql slave server  
0
Santosh Bhabal
04/09/2019 10:38AM
This topic has been moved.:  MySQL 8.0.15 INNODB table Dead slow query  
0
balasubramanya balu
03/30/2019 10:00PM
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