Re: At Performance Limit for 2 GB RAM?
KimSeong-
Initial results look promising on this index change. I tried it on the 20 million rows and got sub 0.1s performance. I will rebuild the indexes on the 200 million rows and do some more complete testing. Then I will post my findings. As you noted the filesort and temporary went away. (I think I had a different view of how the optimizer was solving the query, but when you brought up this change I think it final has dawned on me what the optimizer is trying to do.)
Thanks again,
Nick
Subject
Views
Written By
Posted
8870
July 20, 2005 09:42AM
3790
July 20, 2005 05:45PM
3435
July 22, 2005 01:33PM
3445
July 22, 2005 02:06PM
3755
July 22, 2005 02:13PM
2957
July 25, 2005 01:40PM
3152
July 26, 2005 03:47PM
2973
July 26, 2005 06:55PM
3115
July 26, 2005 07:06PM
3390
July 27, 2005 09:46AM
3275
July 30, 2005 11:44AM
3612
August 01, 2005 11:18AM
3548
August 04, 2005 07:17PM
4034
August 08, 2005 09:08AM
3105
August 02, 2005 12:59AM
Re: At Performance Limit for 2 GB RAM?
3332
August 08, 2005 09:26AM
3146
August 09, 2005 07:57AM
Sorry, you can't reply to this topic. It has been closed.
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.