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. ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------