Re: default attstattarget

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Neil Conway <nconway(at)klamath(dot)dyndns(dot)org>
Cc: PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: default attstattarget
Date: 2002-07-31 15:57:38
Message-ID: 200207311557.g6VFvcd17316@candle.pha.pa.us
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Tom Lane will apply this as part of the DROP COLUMN merging.

---------------------------------------------------------------------------

Neil Conway wrote:
> Hi all,
>
> The attached patch implements the pg_attribute.attstattarget scheme
> discussed on -hackers today. A value of "-1" in this column indicates
> that ANALYZE should use the compiled-in default value. This allows
> pg_dump to record and restore any changes made by the DBA to this
> value using ALTER TABLE ALTER COLUMN SET STATISTICS.
>
> I made another small behavioral change: IMHO, silently changing
> stat target values we deem inappropriate (< 0, > 1000) without
> warning the user is a bad idea. I changed the < 0 case to be a
> elog(ERROR) and added an elog(WARNING) for the > 1000, and
> documented the upper bound.
>
> Unless anyone sees any problems, please apply.
>
> Cheers,
>
> Neil
>
> --
> Neil Conway <neilconway(at)rogers(dot)com>
> PGP Key ID: DB3C29FC

[ Attachment, skipping... ]

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