From: | Mischa Sandberg <mischa(dot)sandberg(at)sophos(dot)com> |
---|---|
To: | 'Jaime Casanova' <jcasanov(at)systemguards(dot)com(dot)ec> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Index-only scans |
Date: | 2009-07-14 17:43:46 |
Message-ID: | CB0F73E165CFFA4496D12161D835562CF876AB6D@US-COL-EXCHMBX1.green.sophos |
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Thread: | |
Lists: | pgsql-hackers |
Now I'm back where I can go look at the source code :-)
Thanks.
> -----Original Message-----
> From: Jaime Casanova [mailto:jcasanov(at)systemguards(dot)com(dot)ec]
> Sent: Monday, July 13, 2009 8:40 PM
> To: Mischa Sandberg
> Cc: Heikki Linnakangas; PostgreSQL-development
> Subject: Re: [HACKERS] Index-only scans
>
> On Mon, Jul 13, 2009 at 5:38 PM, Mischa
> Sandberg<mischa(dot)sandberg(at)sophos(dot)com> wrote:
> > Does PG have an intermediate execution node to sort/batch
> index entries (heap tuple ptrs) by heap page prior to lookup?
> Something mssql does ...
> >
>
> it sounds a lot like a bitmap index scan
>
>
> --
> Atentamente,
> Jaime Casanova
> Soporte y capacitación de PostgreSQL
> Asesoría y desarrollo de sistemas
> Guayaquil - Ecuador
> Cel. +59387171157
>
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