Re: Automatic free space map filling

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Automatic free space map filling
Date: 2006-03-01 17:41:01
Message-ID: 12053.1141234861@sss.pgh.pa.us
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Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> Tom Lane wrote:
>> How does an optimistic FSM entry avoid the need to run vacuum?

> It ensures that all freed tuples are already in the FSM.

That has nothing to do with it, because the space isn't actually free
for re-use until vacuum deletes the tuple.

regards, tom lane

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