RE: The Oracle 9.2.0.4 Optimizer - are there problems with it?

From: Justin Cave (DDBC) <jcave_at_ddbcinc.com>
Date: Fri, 2 Apr 2004 14:19:34 -0700
Message-ID: <87E9F113CEF1D211A4C30090273018741BBA7C@ddbcinc.ddbc.local>

Did you see this behavior when you applied the patch in dev and test, or = is it just showing up in production?

Justin Cave
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

-----Original Message-----

From: oracle-l-bounce_at_freelists.org =
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Wales, Stephen = (RTSI)
Sent: Friday, April 02, 2004 2:10 PM
To: oracle-l_at_freelists.org
Subject: The Oracle 9.2.0.4 Optimizer - are there problems with it?

We recently (2 weeks ago) threw the 9.2.0.4 patch onto our production = =3D
9.2.0.2 databases.

Since that time, users have been complaining about long running queries = =3D are running even longer. Now I'm sure that part of that is poor = query =3D structure (I've analyzed and tuned 2 of them this week = already) but the =3D users want to know why their queries are going so = slow...

I've seen some notes on Metalink referencing a parameter =3D = optimizer_features_enable and talk of setting it to 8.1.7 - is this =3D = worth doing? Anyone got any input on this? Or had similar problems? = =3D Or know of a solution?

Would appreciate any advice.

Thanks
Steve

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Received on Fri Apr 02 2004 - 15:13:30 CST