The following bug has been logged online: Bug reference: 5226 Logged by: aftab Email address: akha...@hotmail.co.uk PostgreSQL version: 8.3.8 Operating system: Centos 5 Description: Limit operator slows down Details:
S1="SELECT * FROM position WHERE position.POSITION_STATE_ID=2 AND position.TARGET_ID=18 ORDER BY position.ID DESC "; S2="SELECT * FROM position WHERE position.POSITION_STATE_ID=2 AND position.TARGET_ID=18 ORDER BY position.ID DESC LIMIT 1 "; S1 takes 0.16ms compared to S2 which takes 5 secs. Both S1 and S2 are same except "LIMIT 1 " is added to S2. -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs