To: Richard Huxton
Cc: David Price; [EMAIL PROTECTED]
Subject: Re: [PERFORM] Optimizer Selecting Incorrect Index
Richard Huxton [EMAIL PROTECTED] writes:
Things to check:
1. postgresql.conf settings match - different costs could cause this
2. statistics on the two columns (trn_patno,trn_old_date
I have 2 servers both with the exact same data, the same O.S., the same
version of Postgres (7.4.5) and the exact same db schema's (one production
server, one development server). One server is using the correct index for
SQL queries resulting in extremely slow performance, the other server is
