Re: how to optimise query for 10+ millions records
Posted by:
Azhar Rahi
Date: February 14, 2012 02:33AM
@irek .. These two tables are temporary tables, which are created when someone pass comma separated value to the stored procedure. This comma separated string is then converted to temporary tables. So I cant turn its field 'value' constraint to P.K.
One more thing, I have applied some indexes, so now a situation is little changed.
When I give two different dates for Between clause i.e. 2012-01-27 and 2012-01-28, it runs fine with "using where" only; even if I give 2012-01-27 and 2012-01-29 and so on, it runs perfectly with "using where". But when I give the same date i.e. 2012-01-27 and 2012-001-27 for between clause, it returns the records with "using temporary; using filesort"
Also when it returns records only with "using where", still it is taking more than a minute to retrieve the record which is a little irritating. Because I want to return the record max in 20-25 seconds.
Subject
Views
Written By
Posted
3089
February 09, 2012 03:30AM
1762
February 09, 2012 05:31AM
1431
February 09, 2012 05:38AM
1349
February 09, 2012 05:58PM
1307
February 11, 2012 11:26PM
1565
February 12, 2012 10:12PM
1421
February 13, 2012 02:18PM
Re: how to optimise query for 10+ millions records
1639
February 14, 2012 02:33AM
1443
February 14, 2012 07:24AM
1449
February 15, 2012 07:30AM
1891
February 16, 2012 03:54AM
1332
February 17, 2012 01:20AM
1279
February 17, 2012 03:57PM
1577
February 17, 2012 05:12PM
1387
February 18, 2012 07:18AM
1429
February 21, 2012 03:25AM
1438
February 24, 2012 10:45AM
1373
February 20, 2012 02:21AM