RE: Ora 9.2/HPUX 11i/Performance

  • From: "Vergara, Michael (TEM)" <mvergara@xxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 19 Feb 2004 12:40:52 -0800

Wolfgang:

I tried to tell the developers that the inlist was too long,
but they dissed me on that notion.  Is this documented
anywhere?

Thanks,
Mike

-----Original Message-----
From: Wolfgang Breitling [mailto:breitliw@xxxxxxxxxxxxx]
Sent: Thursday, February 19, 2004 12:24 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Ora 9.2/HPUX 11i/Performance


Your bad query has a lot more (20) items in the in list than the good =
query=20
(12). With that many items it does not use the inlist iterator anymore =
but=20
drives the query with a range scan of an index on LGORT or SPTAG.

If you can not use a hint, tuning suggestions would depend on the exact=20
column and index statistics.

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