Re: [PATCH] Unremovable tuple monitoring - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PATCH] Unremovable tuple monitoring
Date
Msg-id 21901.1321454049@sss.pgh.pa.us
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In response to Re: [PATCH] Unremovable tuple monitoring  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: [PATCH] Unremovable tuple monitoring
Re: [PATCH] Unremovable tuple monitoring
List pgsql-hackers
Robert Haas <robertmhaas@gmail.com> writes:
> Not sure about the log line, but allowing pgstattuple to distinguish
> between recently-dead and quite-thoroughly-dead seems useful.

The dividing line is enormously unstable though.  pgstattuple's idea of
RecentGlobalXmin could even be significantly different from that of a
concurrently running VACUUM.  I can see the point of having VACUUM log
what it did, but opinions from the peanut gallery aren't worth much.
        regards, tom lane


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