I have found many reasons not to index small tables (see . But I still have questions.
1. How small is small enough? 2. am I supposed to drop primary key index on so called 'label tables' knowing I am using this pk in join clause? 3. Is it good to drop index on small table If I know I have created VIEW and joined large table and the small one and I have where condition on that particular colum? Ilustrative example: table small { id -- primary key colum_for_where_condition -- index or not to index? } table large { ... fk_for_small_table -- indexed ... } create view as select ..... inner join on common_column .. I have migrated from mysql . I have found that complex view expression takes about 10 sec using ordinary planner, but genetic alg takes about 5 sec. Strange? I can give details if someone is interested. Regards, Alvis ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]