On Tue, Nov 30, 2010 at 05:09, Jaime Casanova <ja...@2ndquadrant.com> wrote: > at least IMHO the only sensible way that LIMIT is usefull is with > an ORDER BY clause with make the results very well defined...
DELETE with LIMIT is also useful for deleting things in batches, so you can do large deletes on a live system without starving other users from I/O. In this case deletion order doesn't matter (it's more efficient to delete rows in physical table order) -- ORDER BY isn't necessary. Regards, Marti -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
