>From: Wolfgang Breitling >If you don't want this kind of surprise - or others related to statistics - >take control of the statistics gathering. *YES* In the other words: drop all intelligence, drop all AUTO stuff (including ... CBO ... if possible) >You don't just take init.ora defaults, why would you accept the statistics >gathering defaults? I humbly acknowledge - I am sorry. I was still naïve enough to believe vendors recommendations are to be followed, at least sometimes. Thank you very much, Laimis N. Fyrirvari/Disclaimer http://www.landsbanki.is/disclaimer -- //www.freelists.org/webpage/oracle-l