"Ed L." <[EMAIL PROTECTED]> writes: > If I could say it the way I think for a simple example, it'd be > like this:
> delete from mytable > where posteddatetime < now() - '90 days' > limit 100; > Of course, that's not legal 7.3.4 syntax. Assuming you have a primary key on the table, consider this: CREATE TEMP TABLE doomed AS SELECT key FROM mytable WHERE posteddatetime < now() - '90 days' LIMIT 100; DELETE FROM mytable WHERE key = doomed.key; DROP TABLE doomed; Depending on the size of mytable, you might need an "ANALYZE doomed" in there, but I'm suspecting not. A quick experiment suggests that you'll get a plan with an inner indexscan on mytable.key, which is exactly what you need. See also Chris Browne's excellent suggestions nearby, if you are willing to make larger readjustments in your thinking... 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])