Re: Optimizer internals

From: "John Vincent" <pgsql-performance(at)lusis(dot)org>
To: "PGSQL Performance" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Optimizer internals
Date: 2006-06-15 19:43:09
Message-ID: c841561b0606151243m1e55841fkdc10bfcb2a1d1ff9@mail.gmail.com
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> 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.

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