RE: NL & Hash Outer Join question

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_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] 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_at_centrexcc.com> 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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