RE: Re: Always_semi_join

That's what I did, I came back to default value.

Ramon E. Estevez
restevez_at_blh.com.do
809-535-8994

-----Original Message-----
Gogala
Sent: Wednesday, May 21, 2003 9:12 AM
To: Multiple recipients of list ORACLE-L

Why don't you leave that parameter unset and let you CBO to make an appropriate decision? CBO has all the necessary information: block density, number of rows, hash size estimate etc. and can probably make an itelligent decision. After all, CBO was written by the very same people who wrote OUI, which was dicussed in a separate thread.

On 2003.05.21 07:56 rgaffuri_at_cox.net wrote:
> so am I correct in saying that you should use hash joins when you need

> to return large amounts of data in the result set? Its not appropriate
every time. So setting 'always semi join' to hash is not appropriate.

-- 
Mladen Gogala
Oracle DBA
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Author: Mladen Gogala
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Author: Ramon E. Estevez
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