Re: [PERFORM] Join vs Subquery

2007-05-03 Thread Tom Lane
Brian Herlihy <[EMAIL PROTECTED]> writes: > The issue: the second query results in a lower cost estimate. I am wondering > why the second query plan was not chosen for the first query. 8.1 is incapable of pushing indexable join conditions down below an Append. Try 8.2. r

Re: [PERFORM] Join vs Subquery

2007-05-03 Thread Gregory Stark
"Brian Herlihy" <[EMAIL PROTECTED]> writes: > There is a unique index mapping domains to domain_ids. ... > The issue: the second query results in a lower cost estimate. I am wondering > why the second query plan was not chosen for the first query. Well the unique index you mentioned is critical t