"Joel Fradkin" <[EMAIL PROTECTED]> writes: > Running this explain on windows box, but production on linux both 8.0.1
Are you using any nondefault optimizer settings? The vast bulk of the time is going into the indexscan on tblassociate (almost 42 out of the 48 seconds), and I'm a bit surprised it didn't choose a seqscan and sort instead. Or even more likely, forget the merge joins altogether and use hash joins --- the other tables are plenty small enough to fit in hash tables. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])