MySQL Forums
Forum List  »  Optimizer & Parser
Announcements Last Post
•   MySQL Connector/NET 6.10.9 has been released 07/29/2019 10:27PM
•   MySQL Connector/J 5.1.48 GA has been released 07/29/2019 01:52PM
•   MySQL Cluster 7.3.26 has been released 07/23/2019 08:40AM
•   MySQL Cluster 7.4.25 has been released 07/23/2019 01:56AM
•   MySQL Cluster 7.5.15 has been released 07/23/2019 01:40AM

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

Subject
Views
Written By
Posted
Sticky:  MySQL 8.0: One Giant Leap For SQL (1 Posts)  
366
Edwin Desouza
04/25/2018 10:16AM
Sticky:  Unofficial MySQL 8.0 Optimizer Guide (1 Posts)  
617
Edwin Desouza
02/13/2017 04:16PM
Sticky:  MySQL 8.0: Window Functions (1 Posts)  
540
Edwin Desouza
02/04/2017 08:57PM
Sticky:  MySQL 8.0: CTEs (1 Posts)  
882
Edwin Desouza
10/18/2016 09:38AM
Sticky:  MySQL 8.0: Optimizer & Parser (1 Posts)  
985
Edwin Desouza
09/13/2016 10:54AM
Sticky:  MySQL Performance Tuning (1 Posts)  
1,686
Edwin Desouza
07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)  
2,373
Edwin Desouza
04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)  
3,795
Edwin Desouza
12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)  
4,297
Edwin Desouza
07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)  
10,003
Edwin DeSouza
04/28/2007 06:20PM
MySQL 8.0: Supporting all kinds of outer references in derived tables (lateral, or not)  
46
Edwin Desouza
07/12/2019 11:13AM
setting an index for speed  
80
Michael Peters
07/02/2019 04:56AM
Re: setting an index for speed  
31
Peter Brawley
07/02/2019 12:29PM
Slow Query  
116
Deepak Nirmul
06/21/2019 04:47AM
Re: Slow Query  
30
Peter Brawley
06/21/2019 10:17AM
Re: Slow Query  
26
Deepak Nirmul
06/24/2019 02:18AM
Re: Slow Query  
28
Peter Brawley
06/24/2019 09:56AM
Re: Slow Query  
29
Deepak Nirmul
06/24/2019 10:15AM
Re: Slow Query  
31
Peter Brawley
06/24/2019 10:45AM
Query optimization and indexing - Help needed  
97
Pandit P
06/13/2019 06:41AM
Re: Query optimization and indexing - Help needed  
35
Peter Brawley
06/13/2019 12:55PM
Re: Query optimization and indexing - Help needed  
31
Pandit P
06/14/2019 12:01AM
Re: Query optimization and indexing - Help needed  
37
Peter Brawley
06/14/2019 07:51AM
Is the query order guaranteed using Btree indexes and no ORDER BY  
90
Ted Johnson
05/29/2019 02:12PM
Re: Is the query order guaranteed using Btree indexes and no ORDER BY  
32
Peter Brawley
05/29/2019 03:00PM
Re: Is the query order guaranteed using Btree indexes and no ORDER BY  
26
Ted Johnson
05/29/2019 04:41PM
CHECK constraints in MySQL  
74
Edwin Desouza
05/14/2019 09:37AM
MySQL 8.0: Removal of implicit and explicit sorting for GROUP BY  
112
Edwin Desouza
04/10/2019 09:14AM
Comparing two columns on big table  
105
Krzysztof Wróblewski
03/21/2019 03:24PM
Re: Comparing two columns on big table  
59
Peter Brawley
03/21/2019 04:24PM
help with this query  
126
sha fendi
03/16/2019 09:17PM
Re: help with this query  
60
Peter Brawley
03/17/2019 11:04AM
MySQL Functional Indexes  
98
Edwin Desouza
03/14/2019 09:49AM
MySQL 8.0: Query analytics [CTEs, Window Functions]  
100
Edwin Desouza
03/09/2019 11:04PM
MySQL 8.0: Improvements to ROLLUP  
102
Edwin Desouza
03/05/2019 11:53AM
MySQL 8.0: Window Functions for JSON  
95
Edwin Desouza
02/21/2019 11:08AM
what's the execution order of each part of a sql query  
134
aaron chan
02/19/2019 09:00PM
Re: what's the execution order of each part of a sql query  
61
Peter Brawley
02/20/2019 10:47AM
MySQL 8.0: New Index Features  
147
Edwin Desouza
02/08/2019 11:18AM
MySQL 8.0: support for LATERAL derived tables  
131
Edwin Desouza
01/31/2019 11:07AM
MySQL 8.0: Keywords  
250
Edwin Desouza
01/10/2019 09:22PM
MySQL 8.0: Window Functions with Unusual Boundaries  
196
Edwin Desouza
11/08/2018 02:42PM
More SQL in MySQL 8.0  
208
Edwin Desouza
11/06/2018 07:28PM
MySQL 8.0: What Is New in Optimizer and Executor?  
198
Edwin Desouza
11/01/2018 11:10AM
Optimizer Improvements in MySQL 8.0  
187
Edwin Desouza
10/31/2018 09:31PM
Indexes are not working after restoring dump  
238
Amit K
09/27/2018 11:25AM
Re: Indexes are not working after restoring dump  
150
Amit K
09/27/2018 01:39PM
Re: Indexes are not working after restoring dump  
137
Amit K
09/27/2018 01:45PM
Re: Indexes are not working after restoring dump  
124
Øystein Grøvlen
09/28/2018 12:21AM
Re: Indexes are not working after restoring dump  
151
Peter Brawley
09/27/2018 07:14PM
Re: Indexes are not working after restoring dump  
144
Amit K
09/27/2018 08:31PM
Re: Indexes are not working after restoring dump  
125
Peter Brawley
09/28/2018 11:08AM
Optimizer produces incorrect resultset  
179
J Barchan
09/27/2018 09:35AM
Manipulating queries with non-conforming data via MySQL Query Rewrite Plugin, triggers and stored procedures  
208
Edwin Desouza
09/07/2018 10:34AM
Where Clause Optimization  
299
Mohammed Yehia El Sayed Abdoh
08/31/2018 06:47AM
Re: Where Clause Optimization  
142
Peter Brawley
08/31/2018 01:55PM
Re: Where Clause Optimization  
139
Mohammed Yehia El Sayed Abdoh
08/31/2018 03:08PM
Re: Where Clause Optimization  
139
Øystein Grøvlen
09/03/2018 02:45AM
long execution time of all requests, drop base  
443
Уррик Зарик
06/10/2018 06:10AM
Re: long execution time of all requests, drop base  
181
Peter Brawley
06/10/2018 12:24PM
Re: long execution time of all requests, drop base  
148
Уррик Зарик
06/10/2018 12:40PM
Re: long execution time of all requests, drop base  
178
Peter Brawley
06/10/2018 02:24PM
Re: long execution time of all requests, drop base  
204
Urri Zar
06/11/2018 12:09AM
Re: long execution time of all requests, drop base  
139
Urri Zar
06/12/2018 10:25AM
Re: long execution time of all requests, drop base  
153
Peter Brawley
06/12/2018 10:27AM
Re: long execution time of all requests, drop base  
203
Urri Zar
06/12/2018 10:34AM
Re: long execution time of all requests, drop base  
243
Peter Brawley
06/12/2018 12:00PM
Create index for Join some table in MySQL  
285
Kenny Nguyen
05/20/2018 10:51PM
Re: Create index for Join some table in MySQL  
188
Øystein Grøvlen
05/30/2018 12:50AM
Determine time taken by commit statement after insert or update statement  
355
Priya Pawar
05/07/2018 02:01AM
Re: Determine time taken by commit statement after insert or update statement  
203
Jesús Uzcanga
05/07/2018 08:43AM
Re: Determine time taken by commit statement after insert or update statement  
178
Priya Pawar
05/08/2018 12:03AM
MySQL 8.0: One Giant Leap For SQL  
214
Edwin Desouza
04/25/2018 10:14AM
how to speed up query on a table with over 20million records?  
397
li zheng
03/25/2018 07:27AM
Re: how to speed up query on a table with over 20million records?  
233
li zheng
03/25/2018 08:38AM
Re: how to speed up query on a table with over 20million records?  
193
Peter Brawley
03/25/2018 01:59PM
Re: how to speed up query on a table with over 20million records?  
225
Peter Brawley
03/25/2018 03:04PM
Re: how to speed up query on a table with over 20million records?  
201
li zheng
03/25/2018 08:13PM
Re: how to speed up query on a table with over 20million records?  
217
Peter Brawley
03/25/2018 10:03PM
Re: how to speed up query on a table with over 20million records?  
187
li zheng
03/26/2018 02:41AM
optimize range query(using between, group by and order by)  
691
Özgen Erbakan
03/20/2018 02:34AM
Re: optimize range query(using between, group by and order by)  
394
Øystein Grøvlen
03/20/2018 03:52AM
Slow DELETE-Statement since update on 5.7  
582
engram GmbH
03/19/2018 07:51AM
Re: Slow DELETE-Statement since update on 5.7  
262
Peter Brawley
03/19/2018 11:40AM
Re: Slow DELETE-Statement since update on 5.7  
285
Øystein Grøvlen
03/19/2018 01:15PM
Re: Slow DELETE-Statement since update on 5.7  
307
engram GmbH
03/20/2018 02:09AM
Optimizer choosing wrong index  
228
Daniel Kasak
03/19/2018 05:48PM
MySQL 8.0: Histograms  
251
Edwin Desouza
03/01/2018 02:27PM
Indexing a small table increases the query cost  
422
Aram Mirzadeh
02/28/2018 04:52AM
Re: Indexing a small table increases the query cost  
193
Peter Brawley
02/28/2018 08:50AM
Re: Indexing a small table increases the query cost  
219
Aram Mirzadeh
02/28/2018 11:24AM
Re: Indexing a small table increases the query cost  
202
Aram Mirzadeh
02/28/2018 11:30AM
Re: Indexing a small table increases the query cost  
183
Peter Brawley
02/28/2018 12:58PM
Re: Indexing a small table increases the query cost  
242
Øystein Grøvlen
03/01/2018 03:15AM
MySQL: Ranking techniques  
293
Edwin Desouza
01/23/2018 11:23AM
MySQL 8.0: Row numbering, ranking: using Window Functions  
307
Edwin Desouza
12/22/2017 11:41PM
My query take along time  
455
Murawweh Daher
12/17/2017 07:18AM
Muranweh, please don't double-post  
177
Peter Brawley
12/17/2017 09:48AM
MySQL 8.0: Query Optimizer Takes Data Buffering into Account  
278
Edwin Desouza
12/07/2017 11:21AM
Compound index (pkey) not used when it should be  
404
Dan Parker
11/29/2017 01:39PM
Re: Compound index (pkey) not used when it should be  
268
Peter Brawley
11/29/2017 04:21PM
Re: Compound index (pkey) not used when it should be  
256
Dan Parker
11/29/2017 04:38PM
Re: Compound index (pkey) not used when it should be  
258
Peter Brawley
11/29/2017 05:16PM
Re: Compound index (pkey) not used when it should be  
247
Dan Parker
11/29/2017 05:25PM
Re: Compound index (pkey) not used when it should be  
249
Peter Brawley
11/29/2017 06:13PM
Re: Compound index (pkey) not used when it should be  
267
Dan Parker
11/29/2017 06:23PM
Re: Compound index (pkey) not used when it should be  
237
Peter Brawley
11/29/2017 07:46PM
Re: Compound index (pkey) not used when it should be  
251
Dan Parker
11/30/2017 10:31AM
Re: Compound index (pkey) not used when it should be  
240
Peter Brawley
12/01/2017 11:02AM
Re: Compound index (pkey) not used when it should be  
245
Dan Parker
12/01/2017 11:05AM
Re: Compound index (pkey) not used when it should be  
238
Peter Brawley
12/01/2017 11:19AM
Re: Compound index (pkey) not used when it should be  
233
Dan Parker
12/01/2017 11:26AM
Re: Compound index (pkey) not used when it should be  
243
Peter Brawley
12/01/2017 01:04PM
Re: Compound index (pkey) not used when it should be  
251
Dan Parker
12/01/2017 01:10PM
Re: Compound index (pkey) not used when it should be  
234
Peter Brawley
12/01/2017 05:01PM
Re: Compound index (pkey) not used when it should be  
246
Øystein Grøvlen
12/01/2017 10:10AM
Re: Compound index (pkey) not used when it should be  
241
Dan Parker
12/01/2017 10:36AM
Confirmation on possible parser bug  
410
Patrick Meredith
11/27/2017 10:47AM
Re: Confirmation on possible parser bug  
192
Peter Brawley
11/30/2017 11:20AM
Source code question related to sql_optimizer.cc line 8583  
454
Petru-Florin Mihancea
11/28/2017 04:20AM
Re: Source code question related to sql_optimizer.cc line 8583  
215
Øystein Grøvlen
11/28/2017 07:01AM
MySQL 8.0: Optimization to skip index dives with FORCE INDEX.  
436
Edwin Desouza
11/17/2017 09:50AM
Is Union Queries run in Parallel form or not.  
531
Azeem Haider
10/17/2017 11:40PM
Re: Is Union Queries run in Parallel form or not.  
264
Peter Brawley
10/18/2017 08:32AM
Re: Is Union Queries run in Parallel form or not.  
293
Azeem Haider
10/18/2017 10:43PM
Re: Is Union Queries run in Parallel form or not.  
243
Peter Brawley
10/18/2017 10:55PM
Re: Is Union Queries run in Parallel form or not.  
313
Øystein Grøvlen
10/19/2017 03:02AM
MySQL 8.0: Window Functions  
321
Edwin Desouza
10/04/2017 06:03PM
Grammer Rule for Parenthesis in Select Statement  
526
Sushant Choudhary
09/21/2017 12:47PM
Please don't duplicate posts  
304
Peter Brawley
09/21/2017 12:49PM
Help with explain on query  
423
Alex Titley
08/16/2017 09:09AM
Re: Help with explain on query  
225
Peter Brawley
08/16/2017 10:07AM
Optimizer Stablility  
403
Chris Reston
08/16/2017 12:56AM
Re: Optimizer Stablility  
264
Øystein Grøvlen
08/16/2017 02:19AM
Way to avoid fragmentation of MySQL tables  
392
Priya Pawar
07/30/2017 11:01AM
Re: Way to avoid fragmentation of MySQL tables  
313
Peter Brawley
07/30/2017 04:41PM
Re: Way to avoid fragmentation of MySQL tables  
245
Priya Pawar
07/30/2017 11:10PM
MySQL 8.0.2: Introducing Window Functions  
370
Edwin Desouza
07/18/2017 10:33AM
This topic has been moved.:  setting an index for speed  
9
Michael Peters
07/02/2019 12:26PM
This topic has been moved.:  Slow Query  
0
Deepak Nirmul
06/21/2019 10:18AM
This topic has been moved.:  help with this query  
0
sha fendi
03/17/2019 11:05AM
This topic has been moved.:  My query take along time  
0
Murawweh Daher
12/17/2017 09:37AM
This topic has been moved.:  Is Union Queries run in Parallel form or not.  
0
Azeem Haider
10/18/2017 10:56PM
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.