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Sticky:  Unofficial MySQL 8.0 Optimizer Guide (1 Posts)  
359
Edwin Desouza
02/13/2017 04:16PM
Sticky:  MySQL 8.0: Window Functions (1 Posts)  
344
Edwin Desouza
02/04/2017 08:57PM
Sticky:  MySQL 8.0: CTEs (1 Posts)  
639
Edwin Desouza
10/18/2016 09:38AM
Sticky:  MySQL 8.0: Optimizer & Parser (1 Posts)  
657
Edwin Desouza
09/13/2016 10:54AM
Sticky:  MySQL Performance Tuning (1 Posts)  
1,468
Edwin Desouza
07/06/2015 10:37AM
Sticky:  MySQL Parser (1 Posts)  
2,132
Edwin Desouza
04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)  
3,566
Edwin Desouza
12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)  
4,074
Edwin Desouza
07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)  
9,662
Edwin DeSouza
04/28/2007 06:20PM
how to speed up query on a table with over 20million records?  
53
li zheng
03/25/2018 07:27AM
Re: how to speed up query on a table with over 20million records?  
21
li zheng
03/25/2018 08:38AM
Re: how to speed up query on a table with over 20million records?  
19
Peter Brawley
03/25/2018 01:59PM
Re: how to speed up query on a table with over 20million records?  
20
Peter Brawley
03/25/2018 03:04PM
Re: how to speed up query on a table with over 20million records?  
12
li zheng
03/25/2018 08:13PM
Re: how to speed up query on a table with over 20million records?  
16
Peter Brawley
03/25/2018 10:03PM
Re: how to speed up query on a table with over 20million records?  
20
li zheng
03/26/2018 02:41AM
optimize range query(using between, group by and order by)  
66
Özgen Erbakan
03/20/2018 02:34AM
Re: optimize range query(using between, group by and order by)  
43
Øystein Grøvlen
03/20/2018 03:52AM
Slow DELETE-Statement since update on 5.7  
76
engram GmbH
03/19/2018 07:51AM
Re: Slow DELETE-Statement since update on 5.7  
22
Peter Brawley
03/19/2018 11:40AM
Re: Slow DELETE-Statement since update on 5.7  
29
Øystein Grøvlen
03/19/2018 01:15PM
Re: Slow DELETE-Statement since update on 5.7  
60
engram GmbH
03/20/2018 02:09AM
MySQL 8.0: Histograms  
41
Edwin Desouza
03/01/2018 02:27PM
Indexing a small table increases the query cost  
60
Aram Mirzadeh
02/28/2018 04:52AM
Re: Indexing a small table increases the query cost  
20
Peter Brawley
02/28/2018 08:50AM
Re: Indexing a small table increases the query cost  
22
Aram Mirzadeh
02/28/2018 11:24AM
Re: Indexing a small table increases the query cost  
20
Aram Mirzadeh
02/28/2018 11:30AM
Re: Indexing a small table increases the query cost  
13
Peter Brawley
02/28/2018 12:58PM
Re: Indexing a small table increases the query cost  
36
Øystein Grøvlen
03/01/2018 03:15AM
MySQL: Ranking techniques  
55
Edwin Desouza
01/23/2018 11:23AM
MySQL 8.0: Row numbering, ranking: using Window Functions  
83
Edwin Desouza
12/22/2017 11:41PM
My query take along time  
120
Murawweh Daher
12/17/2017 07:18AM
Muranweh, please don't double-post  
29
Peter Brawley
12/17/2017 09:48AM
MySQL 8.0: Query Optimizer Takes Data Buffering into Account  
68
Edwin Desouza
12/07/2017 11:21AM
Compound index (pkey) not used when it should be  
110
Dan Parker
11/29/2017 01:39PM
Re: Compound index (pkey) not used when it should be  
59
Peter Brawley
11/29/2017 04:21PM
Re: Compound index (pkey) not used when it should be  
48
Dan Parker
11/29/2017 04:38PM
Re: Compound index (pkey) not used when it should be  
58
Peter Brawley
11/29/2017 05:16PM
Re: Compound index (pkey) not used when it should be  
55
Dan Parker
11/29/2017 05:25PM
Re: Compound index (pkey) not used when it should be  
51
Peter Brawley
11/29/2017 06:13PM
Re: Compound index (pkey) not used when it should be  
60
Dan Parker
11/29/2017 06:23PM
Re: Compound index (pkey) not used when it should be  
47
Peter Brawley
11/29/2017 07:46PM
Re: Compound index (pkey) not used when it should be  
45
Dan Parker
11/30/2017 10:31AM
Re: Compound index (pkey) not used when it should be  
38
Peter Brawley
12/01/2017 11:02AM
Re: Compound index (pkey) not used when it should be  
37
Dan Parker
12/01/2017 11:05AM
Re: Compound index (pkey) not used when it should be  
42
Peter Brawley
12/01/2017 11:19AM
Re: Compound index (pkey) not used when it should be  
42
Dan Parker
12/01/2017 11:26AM
Re: Compound index (pkey) not used when it should be  
40
Peter Brawley
12/01/2017 01:04PM
Re: Compound index (pkey) not used when it should be  
51
Dan Parker
12/01/2017 01:10PM
Re: Compound index (pkey) not used when it should be  
37
Peter Brawley
12/01/2017 05:01PM
Re: Compound index (pkey) not used when it should be  
37
Øystein Grøvlen
12/01/2017 10:10AM
Re: Compound index (pkey) not used when it should be  
40
Dan Parker
12/01/2017 10:36AM
Confirmation on possible parser bug  
114
Patrick Meredith
11/27/2017 10:47AM
Re: Confirmation on possible parser bug  
39
Peter Brawley
11/30/2017 11:20AM
Source code question related to sql_optimizer.cc line 8583  
115
Petru-Florin Mihancea
11/28/2017 04:20AM
Re: Source code question related to sql_optimizer.cc line 8583  
47
Øystein Grøvlen
11/28/2017 07:01AM
MySQL 8.0: Optimization to skip index dives with FORCE INDEX.  
124
Edwin Desouza
11/17/2017 09:50AM
Is Union Queries run in Parallel form or not.  
201
Azeem Haider
10/17/2017 11:40PM
Re: Is Union Queries run in Parallel form or not.  
91
Peter Brawley
10/18/2017 08:32AM
Re: Is Union Queries run in Parallel form or not.  
87
Azeem Haider
10/18/2017 10:43PM
Re: Is Union Queries run in Parallel form or not.  
72
Peter Brawley
10/18/2017 10:55PM
Re: Is Union Queries run in Parallel form or not.  
116
Øystein Grøvlen
10/19/2017 03:02AM
MySQL 8.0: Window Functions  
116
Edwin Desouza
10/04/2017 06:03PM
Grammer Rule for Parenthesis in Select Statement  
188
Sushant Choudhary
09/21/2017 12:47PM
Please don't duplicate posts  
66
Peter Brawley
09/21/2017 12:49PM
Help with explain on query  
224
Alex Titley
08/16/2017 09:09AM
Re: Help with explain on query  
84
Peter Brawley
08/16/2017 10:07AM
Optimizer Stablility  
166
Chris Reston
08/16/2017 12:56AM
Re: Optimizer Stablility  
98
Øystein Grøvlen
08/16/2017 02:19AM
Way to avoid fragmentation of MySQL tables  
182
Priya Pawar
07/30/2017 11:01AM
Re: Way to avoid fragmentation of MySQL tables  
92
Peter Brawley
07/30/2017 04:41PM
Re: Way to avoid fragmentation of MySQL tables  
90
Priya Pawar
07/30/2017 11:10PM
MySQL 8.0.2: Introducing Window Functions  
178
Edwin Desouza
07/18/2017 10:33AM
Can anyone help speed up this query?  
237
Search Team
06/21/2017 11:07AM
Re: Can anyone help speed up this query?  
134
Peter Brawley
06/21/2017 02:53PM
Re: Can anyone help speed up this query?  
115
Search Team
06/22/2017 09:15AM
Re: Can anyone help speed up this query?  
149
Peter Brawley
06/22/2017 12:54PM
Re: Can anyone help speed up this query?  
101
Search Team
06/23/2017 07:50AM
Re: Can anyone help speed up this query?  
106
Peter Brawley
06/23/2017 11:14AM
Re: Can anyone help speed up this query?  
105
Øystein Grøvlen
06/22/2017 01:18AM
Re: Can anyone help speed up this query?  
117
Search Team
06/22/2017 09:56AM
Re: Can anyone help speed up this query?  
105
Øystein Grøvlen
06/23/2017 12:53AM
Is there a better ANTLR grammar file for MySQL ?  
399
Bill Nicholson
05/28/2017 05:07PM
Re: Is there a better ANTLR grammar file for MySQL ?  
179
Edwin Desouza
05/29/2017 11:43PM
Re: Is there a better ANTLR grammar file for MySQL ?  
144
Edwin Desouza
05/30/2017 07:57AM
MySQL 8.0.1: [Recursive] Common Table Expressions in MySQL (CTEs), Part Four – depth-first or breadth-first traversal, transitive closure, cycle avoidance  
288
Edwin Desouza
05/23/2017 11:01AM
MySQL Index Advisor for SQL Tuning  
755
Chaitanya Challa
05/10/2017 09:12PM
Re: MySQL Index Advisor for SQL Tuning  
485
Edwin Desouza
05/10/2017 10:57PM
Re: MySQL Index Advisor for SQL Tuning  
322
Chaitanya Challa
05/11/2017 08:08AM
MySQL 8.0: CTEs Recursive Query Throwdown  
291
Edwin Desouza
05/05/2017 06:14PM
MySQL 8.0: GROUPING function  
200
Edwin Desouza
05/02/2017 10:37AM
How to Analyze and Tune MySQL Queries for Better Performance  
238
Edwin Desouza
04/27/2017 11:32AM
MySQL 8.0: Optimizer: What's New  
264
Edwin Desouza
04/27/2017 11:31AM
MySQL 8.0 Optimizer Guide  
309
Edwin Desouza
04/27/2017 11:30AM
MySQL 8.0.1: Using SKIP LOCKED and NOWAIT to handle hot rows  
278
Edwin Desouza
04/12/2017 11:57AM
MySQL 8.0: Improved performance with CTE  
258
Edwin Desouza
04/12/2017 11:57AM
MySQL 5.7: What to Do When the Optimizer Overestimates the Condition Filtering Effect  
257
Edwin Desouza
03/24/2017 11:30AM
prepare don't work for optimize statement  
365
Long WU
03/22/2017 12:30AM
Re: prepare don't work for optimize statement  
131
Øystein Grøvlen
03/22/2017 01:34AM
MySQL 5.7: Improved JOIN Order by Taking Condition Filter Effect into Account  
332
Edwin Desouza
03/17/2017 02:49PM
Improve search when using IN() ORDER BY PRIMARY and LIMIT  
465
jon sans
02/11/2017 07:17AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT  
153
jon sans
02/11/2017 07:29AM
Re: Improve search when using IN() ORDER BY PRIMARY and LIMIT  
164
Øystein Grøvlen
02/13/2017 05:58AM
MySQL Performance Tuning: Optimizer Hints  
290
Edwin Desouza
02/04/2017 09:09PM
Hiw to fast delete rows from table in relation?  
381
Andrzej Borucki
01/22/2017 02:21AM
Re: Hiw to fast delete rows from table in relation?  
206
Andrzej Borucki
01/22/2017 03:39AM
Re: Hiw to fast delete rows from table in relation?  
209
Andrzej Borucki
01/22/2017 04:03AM
Query not always using indexes  
535
K DBA
01/06/2017 05:48AM
Re: Query not always using indexes  
239
Peter Brawley
01/06/2017 12:28PM
Re: Query not always using indexes  
308
K DBA
01/09/2017 05:18AM
Re: Query not always using indexes  
300
Øystein Grøvlen
01/09/2017 02:30AM
Optimize subquery, replace IN() with JOIN  
579
Miron jajtic
11/15/2016 02:37PM
Re: Optimize subquery, replace IN() with JOIN  
305
Peter Brawley
11/15/2016 03:34PM
Re: Optimize subquery, replace IN() with JOIN  
320
Miron jajtic
11/15/2016 04:25PM
Re: Optimize subquery, replace IN() with JOIN  
364
Rick James
11/17/2016 08:11PM
Re: Optimize subquery, replace IN() with JOIN  
291
Peter Brawley
11/22/2016 02:44PM
Re: Optimize subquery, replace IN() with JOIN  
332
Miron jajtic
11/16/2016 04:03AM
Re: Optimize subquery, replace IN() with JOIN  
312
Peter Brawley
11/16/2016 12:51PM
Re: Optimize subquery, replace IN() with JOIN  
353
Miron jajtic
11/16/2016 03:22PM
Re: Optimize subquery, replace IN() with JOIN  
309
Peter Brawley
11/16/2016 04:44PM
Re: Optimize subquery, replace IN() with JOIN  
265
sahar gull
12/27/2016 05:32AM
Re: Optimize subquery, replace IN() with JOIN  
301
Øystein Grøvlen
11/16/2016 01:50AM
Re: Optimize subquery, replace IN() with JOIN  
302
Miron jajtic
11/16/2016 04:01AM
Re: Optimize subquery, replace IN() with JOIN  
346
Øystein Grøvlen
11/16/2016 06:23AM
Improved Query Performance by Using Derived Table instead of IN-subquery  
429
Edwin Desouza
12/23/2016 08:50AM
primary key vs covered index  
572
marcin kot
11/30/2016 09:55AM
Re: primary key vs covered index  
296
Øystein Grøvlen
12/01/2016 01:39AM
Re: primary key vs covered index  
305
marcin kot
12/01/2016 03:38AM
Re: primary key vs covered index  
315
Øystein Grøvlen
12/01/2016 03:57AM
Re: primary key vs covered index  
311
marcin kot
12/01/2016 04:16AM
Re: primary key vs covered index  
289
Øystein Grøvlen
12/01/2016 04:25AM
MySQL 8.0: Refactoring and Improving the Parser  
531
Edwin Desouza
11/22/2016 10:58AM
MySQL subquery  
593
harry sheng
10/27/2016 02:51PM
Re: MySQL subquery  
297
Øystein Grøvlen
10/28/2016 01:03AM
Re: MySQL subquery  
332
harry sheng
11/06/2016 08:50PM
Re: MySQL subquery  
355
Øystein Grøvlen
11/07/2016 01:39AM
How to Analyze and Tune MySQL Queries for Better Performance  
505
Edwin Desouza
10/21/2016 09:58AM
Index on timestamp  
1,719
Adeline M
10/14/2016 08:47AM
Re: Index on timestamp  
789
Rick James
10/16/2016 04:40PM
MySQL 8.0: Descending Indexes  
692
Edwin Desouza
10/12/2016 10:00AM
Pivot table with dynamic columns  
1,486
Aram Mirzadeh
09/30/2016 06:03PM
Re: Pivot table with dynamic columns  
637
Rick James
10/03/2016 03:40PM
inner join vs left join - huge performance difference  
1,753
michael cook
07/06/2016 09:32AM
Re: inner join vs left join - huge performance difference  
691
Peter Brawley
07/06/2016 12:00PM
Re: inner join vs left join - huge performance difference  
466
michael cook
07/06/2016 12:18PM
Re: inner join vs left join - huge performance difference  
411
michael cook
07/06/2016 12:29PM
Re: inner join vs left join - huge performance difference  
375
Peter Brawley
07/06/2016 12:36PM
Re: inner join vs left join - huge performance difference  
461
michael cook
07/06/2016 12:44PM
Re: inner join vs left join - huge performance difference  
438
michael cook
07/06/2016 01:51PM
Re: inner join vs left join - huge performance difference  
419
Peter Brawley
07/06/2016 02:32PM
Re: inner join vs left join - huge performance difference  
337
michael cook
07/06/2016 02:41PM
Re: inner join vs left join - huge performance difference  
358
Rick James
07/08/2016 11:58PM
Re: inner join vs left join - huge performance difference  
411
Peter Brawley
07/09/2016 09:54AM
Re: inner join vs left join - huge performance difference  
458
Isabella Swan
09/27/2016 07:13AM
This topic has been moved.:  INSERT AfTER LEFT JOIN creates duplicate records  
10
Brad Liu
09/20/2016 02:09PM
MySQL 8.0: Invisible Indexes  
505
Edwin Desouza
09/20/2016 09:21AM
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
This topic has been moved.:  Improve search when using IN() ORDER BY PRIMARY and LIMIT  
0
jon sans
02/11/2017 01:36PM
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