Re: Autovacuum integration patch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
Cc: Alvaro Herrera <alvherre(at)surnet(dot)cl>, Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: Autovacuum integration patch
Date: 2005-07-05 17:00:50
Message-ID: 23960.1120582850@sss.pgh.pa.us
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"Matthew T. O'Connor" <matthew(at)zeut(dot)net> writes:
> Tom Lane wrote:
>> No, you're wrong. VACUUMing of individual tables is perfectly good
>> enough as far as XID wrap protection goes, it's just that we chose to
>> track whether it had been done at the database level. If we tracked it
>> in, say, a new pg_class column then in principle you could protect
>> against XID wrap with only table-at-a-time VACUUMs.

> Good, I'm glad I'm wrong on this. This will be another nice advantage
> of autovacuum then and should be fairly easy to do. Any thoughts on
> this being a change we can get in for 8.1?

I'd say this is probably a tad too late --- there's a fair amount of
code change that would be needed, none of which has been written, and
we are past the feature-freeze deadline for new code.

regards, tom lane

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