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Re: Long execution time despite LIMIT 3
Posted by: Rick James ()
Date: June 20, 2011 06:33PM

Something unobvious is going on, please provide
* SHOW CREATE TABLE tbl\G -- engine, indexes
* SHOW TABLE STATUS LIKE 'tbl'\G -- sizes
* EXPLAIN SELECT ...\G -- clues of inefficiencies
* SHOW VARIABLES LIKE '%buffer%'; -- cache size
and surround them with [ code ] and [ / code ]

Also, please do
SELECT COUNT(*) FROM table WHERE thread='foo';

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Subject Views Written By Posted
Long execution time despite LIMIT 3 1120 Joachim Berger 06/19/2011 12:47PM
Re: Long execution time despite LIMIT 3 479 Joachim Berger 06/19/2011 12:54PM
Re: Long execution time despite LIMIT 3 457 Rick James 06/20/2011 06:33PM
Re: Long execution time despite LIMIT 3 446 Joachim Berger 06/20/2011 11:44PM
Re: Long execution time despite LIMIT 3 467 Joachim Berger 06/21/2011 02:06AM
Re: Long execution time despite LIMIT 3 470 Rick James 06/21/2011 07:23AM
Re: Long execution time despite LIMIT 3 412 Joachim Berger 06/21/2011 07:28AM
Re: Long execution time despite LIMIT 3 497 Joachim Berger 06/21/2011 10:33AM
Re: Long execution time despite LIMIT 3 546 Rick James 06/21/2011 10:08PM
Re: Long execution time despite LIMIT 3 636 Joachim Berger 06/22/2011 12:33AM
Re: Long execution time despite LIMIT 3 498 Rick James 06/22/2011 07:26PM
Re: Long execution time despite LIMIT 3 446 Joachim Berger 06/22/2011 11:45PM
Re: Long execution time despite LIMIT 3 406 Rick James 06/23/2011 08:53AM
Re: Long execution time despite LIMIT 3 522 Joachim Berger 06/24/2011 02:51AM


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