Re: Automatic free space map filling

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bernd Helmle <mailings(at)oopsware(dot)de>
Cc: pgsql-hackers(at)postgresql(dot)org, Peter Eisentraut <peter_e(at)gmx(dot)net>
Subject: Re: Automatic free space map filling
Date: 2006-03-02 15:18:38
Message-ID: 2791.1141312718@sss.pgh.pa.us
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Bernd Helmle <mailings(at)oopsware(dot)de> writes:
> But couldn't such an opportunistic approach be used for
> another lightweight VACUUM mode in such a way, that VACUUM could
> look at a special "Hot Spot" queue, which represents potential
> candidates for freeing?

The proposed dirty-page bit map seems a superior solution to that.

regards, tom lane

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