RE: NL & Hash Outer Join question
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: <rjamya@xxxxxxxxx>, "Oracle Discussion List" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 26 Jan 2007 08:52:39 -0700
If you're really desperate, you could try hash_join_enabled=false, but
that will of course have an impact on several other queries, maybe good,
maybe bad - so you'd probably want to start your query testing over from
the beginning, or at least identify any queries that are using hash
joins and then see how they perform w/o the hash joins.
Regards,
Brandon
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of rjamya
Sent: Thursday, January 25, 2007 7:56 PM
To: Wolfgang Breitling
Cc: Oracle Discussion List
Subject: Re: NL & Hash Outer Join question
Thanks Wolfgang ...
I'd like this H-O-J to go away and use the good old NL, so we can
at-least certify and upgrade. Further enhancements can be done after the
upgrade.
rjamya
On 1/25/07, Wolfgang Breitling <breitliw@xxxxxxxxxxxxx> wrote:
Changes to the optimizer in releases 9.2.0.5, 9.2.0.6 , 9.2.0.7
and 9.2.0.8
Just one release step can be enough. You've got 4 ! The CBO is
hardly
the same animal anymore.
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