Re: Need help understanding optimizer behavior in 5.6
> where e.uneven_val between 300 and 32000
What fraction of `e` does that represent in your small test? If it is most of the table, then the optimizer may have decided not to bother with INDEX(uneven_val).
You could create a separate database on the production system for running this test in. That _might_ show you that 5.0 did the same thing. (Or it might not.)
Subject
Views
Written By
Posted
2200
June 22, 2015 08:30AM
1075
June 22, 2015 08:31AM
Re: Need help understanding optimizer behavior in 5.6
1080
June 23, 2015 07:00PM
1066
June 24, 2015 06:22AM
978
June 25, 2015 11:37PM
1050
June 26, 2015 06:56AM
1055
June 30, 2015 05:46AM
1562
June 30, 2015 08:06AM
1033
June 30, 2015 08:16AM
1214
July 01, 2015 03:49AM
1219
July 01, 2015 06:48AM
1064
July 01, 2015 03:05PM
1054
July 02, 2015 07:48AM
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.