Oracle 10.2.0.3 on HP-UX 11i. I have a large, busy table. It is 70,000,000+ rows and 1.3GB in size. The gather stats job runs automatically as needed. There are 11 indexes on this table. One the indexes has as its first column, a date column (named event_dt). When doing a simple query such as: Select * from TABLE where event_dt > '27-OCT-2008' performs a full table scan. The explain_plan estimates that 800,000+ rows is to be returned. I then manually ran a gather stats as follows: exec dbms_stats.gather_table_stats ('XXX','XXXXXX', method_opt => 'FOR ALL COLUMNS SIZE 1', degree => dbms_stats.auto_degree, CASCADE => TRUE); It did not help. Out of desperation, I ran an old fashioned "analyze table XXX estimate statistics;" This ran very quickly and corrected the issue, as the explain_plan is now correct (estimated rows is 7,000) and it runs with the index. So, I cannot figure out why the old analyze worked, where the new gather_stats did not. Can anyone offer any advice on this? Thanks all, John Fedock "K" Line America, ISD Department