Hmmm...anything SYS in DBA_TAB_COL_STATISTICS or DBA_ANALYZE_OBJECTS? Is the COST column in your PLAN_TABLE null???
Rich Jesse System/Database Administrator [EMAIL PROTECTED] Quad/Tech International, Sussex, WI USA -----Original Message----- Sent: Monday, September 30, 2002 12:38 PM To: Multiple recipients of list ORACLE-L We are using First_rows for the optimizer mode, but the last_analyzed column in DBA_TABLES and DBA_INDEXES is NULL for all objects owned by SYS. The really wierd part is: Changing the query to use rule based optimization (via the /*+ RULE */ hint caused it to execute sub-second. Why would optimization mode affect parsing? Is query optimization considered part of the parsing routine? Matt -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jesse, Rich INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
