Re: Optimizer internals - Mailing list pgsql-performance

From John Vincent
Subject Re: Optimizer internals
Date
Msg-id c841561b0606151243m1e55841fkdc10bfcb2a1d1ff9@mail.gmail.com
Whole thread Raw
In response to Re: Optimizer internals  ("John Vincent" <pgsql-performance@lusis.org>)
Responses Re: Optimizer internals
List pgsql-performance

Any suggestions? FYI the original question wasn't meant as a poke at comparing PG to MySQL to DB2. I'm not making an yvalue judgements either way. I'm just trying to understand how we can use it the best way possible.

If anyone from the bizgres team is watching, have they done any work in this area?

Thanks.
John

Actually we just thought about something. With PG, we can create an index that is a SUM of the column where indexing, no? We're going to test this in a few hours. Would that be able to be satisfied by an index scan?

Also, we're looking at the link provided for the materialized views in PG.

Thanks.

pgsql-performance by date:

Previous
From: Scott Marlowe
Date:
Subject: Re: Optimizer internals
Next
From: Tim Allen
Date:
Subject: SAN performance mystery