Re: Speeding up an in-progress wraparound-preventing vacuum

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Vincent de Phily <vincent(dot)dephily(at)mobile-devices(dot)fr>
Cc: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-general General <pgsql-general(at)postgresql(dot)org>
Subject: Re: Speeding up an in-progress wraparound-preventing vacuum
Date: 2014-12-09 22:32:30
Message-ID: 26532.1418164350@sss.pgh.pa.us
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Vincent de Phily <vincent(dot)dephily(at)mobile-devices(dot)fr> writes:
> What happens when vacuum is killed before it had time to go though the index
> with its dead-TID buffer ?

The next run will go through the index again, looking for those same TIDs
(and possibly more).

regards, tom lane

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