Skip navigation links

MySQL Forums :: Optimizer & Parser


Advanced Search

Announcements Last Post
MySQL Cluster 7.1.33 has been released 10/21/2014 04:54AM
MySQL Cluster 7.3.7 has been released 10/17/2014 07:46PM
MySQL Cluster 7.2.18 has been released 10/16/2014 12:07PM
MySQL Enterprise Monitor 3.0.15 has been released 10/01/2014 10:49AM
MySQL Connector/NET 6.9.4 has been released 09/26/2014 04:00PM
Pages:  1 2 3 4 5 ...Last Next
Current Page: 1 of 16
Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   383 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   1,753 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,467 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   7,836 Edwin DeSouza 04/28/2007 06:20PM
MySQL Optimizer Cost Model   23 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   91 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   22 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   23 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   78 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   63 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   67 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   118 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   45 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   62 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   261 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   102 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   53 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   150 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   64 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   315 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   139 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   152 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   58 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   54 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   169 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   68 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   192 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   69 Rick James 08/04/2014 01:23PM
Query not using index sporadically   283 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   104 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   268 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   234 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   358 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   164 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   158 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   156 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   146 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   139 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   147 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   138 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   151 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   300 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   379 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   164 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   499 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   217 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   226 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   569 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   240 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   245 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   237 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   242 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   238 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   238 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   195 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   237 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   859 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   301 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   273 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   293 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   313 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   290 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   294 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   308 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   289 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   258 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   256 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   269 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   253 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   274 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   307 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   251 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   241 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   273 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   258 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   243 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   265 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   274 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   292 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   263 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   770 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   264 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   309 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   391 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   258 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   258 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   266 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   258 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   255 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   257 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   277 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   246 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   608 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   280 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   917 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   356 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   500 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   618 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   326 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   299 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   278 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   612 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   765 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   411 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   362 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   324 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   354 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   348 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   349 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   404 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   767 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   354 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   371 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   736 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   351 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   1,109 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   507 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   406 Rick James 08/31/2013 04:13PM
query index not used   602 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   332 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   949 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   421 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   405 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   351 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   372 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   394 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   388 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   396 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   680 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   364 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,173 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   547 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   552 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   491 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   445 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   438 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   466 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   769 Rick James 06/04/2013 11:49PM
Query optimization   982 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   461 Rick James 05/12/2013 08:42PM
Re: Query optimization   450 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   437 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   406 Rick James 05/16/2013 08:18AM
Re: Query optimization   459 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   439 Rick James 05/17/2013 11:47PM
Re: Query optimization   417 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   437 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   750 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,277 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   548 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   3,014 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   810 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   788 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   689 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   722 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   615 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   651 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   755 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   683 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   628 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   660 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   632 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   645 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   611 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   638 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   683 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   804 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   680 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   711 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   659 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   674 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,049 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   623 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   620 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   655 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   936 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   3,870 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,450 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,038 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   1,759 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   656 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   875 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   638 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   705 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   601 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   621 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   591 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,335 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   651 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,327 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   618 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,202 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   577 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,211 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,009 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   864 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,390 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   688 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   673 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   957 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,318 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   702 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   637 Chris Slominski 10/25/2012 06:15AM
Pages:  1 2 3 4 5 ...Last Next
Current Page: 1 of 16

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.