I get the same result (higher cost hash join chosen over NL join) with Oracle 8.1.7.4.1 At 01:28 PM 4/5/2004, you wrote: >My guess would be that this is a deliberate >heuristic introduced some time around 9 >to avoid nested loop full tablescans when >the numbers are small. Wolfgang Breitling Oracle7, 8, 8i, 9i OCP DBA Centrex Consulting Corporation http://www.centrexcc.com ---------------------------------------------------------------- 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 -----------------------------------------------------------------