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Re: docs update for count(*) and index-only scans

From: Marti Raudsepp <marti(at)juffo(dot)org>
To: Josh Kupershmidt <schmiddy(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-docs <pgsql-docs(at)postgresql(dot)org>
Subject: Re: docs update for count(*) and index-only scans
Date: 2011-12-06 16:27:22
Message-ID: CABRT9RDnjuhvheuBgP0vmmP0U4NKhEfPHfFOo1fp1AjFGy_iHw@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-docs
On Tue, Dec 6, 2011 at 05:14, Josh Kupershmidt <schmiddy(at)gmail(dot)com> wrote:
> Maybe just tweak
> "will be executed" to "will often be executed", or change "using a
> sequential scan of the entire table." to "using a sequential scan of
> the table, or an index-only scan of one of its indexes".

I don't think we need to specify what the planner does at all. How
about simply "will need to access all rows [in the table]"

Also +1 for removing references to "other SQL databases".

Regards,
Marti

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