RE: CBO and connect by prior

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Mon, 19 May 2003 13:27:12 -0800
Message-ID: <F001.0059D140.20030519132712@fatcity.com>

so far,

I found that parent_flt_id is nullable and it had a non-unique index. So, I recreated the index as (flt_id, parent_flt_id) and the results are better. The developer is working ... I'll know more by tomorrow.

Thanks for the ideas ...
Raj

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Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !

-----Original Message-----
Sent: Monday, May 19, 2003 3:17 PM
To: Multiple recipients of list ORACLE-L

I would give a try to the subquery coming first as an inline-view in the FROM clause, with ORDERED and possibly whatever it takes to prevent Oracle from recombining everything. Or possibly better still, I would try WITH, which seems to me a strong inducement to process the CONNECT BY before anything else.

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Regards,
Stephane Faroult
Oriole Software

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Author: Jamadagni, Rajendra
  INET: Rajendra.Jamadagni_at_espn.com

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