"Michael Mattox" <[EMAIL PROTECTED]> writes: > It's much slower but I appreciate you taking the time to try. I'm pretty > new to SQL so I must admin this query is very confusing for me. I'm using > Java Data Objects (JDO, an O/R mapping framework) but the implementation I'm > using (Kodo) isn't smart enough to do all the joins efficiently, which is > why I had to rewrite this query by hand.
It wasn't till I read that :-( that I noticed that you were doing nested left joins. Fooling with the join order may be your best route to a solution --- have you read http://www.postgresql.org/docs/view.php?version=7.3&idoc=0&file=explicit-joins.html regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
