Re: Improvement of procArray.xmin for VACUUM - Mailing list pgsql-patches

From Tom Lane
Subject Re: Improvement of procArray.xmin for VACUUM
Date
Msg-id 10049.1174961791@sss.pgh.pa.us
Whole thread Raw
In response to Re: Improvement of procArray.xmin for VACUUM  (Bruce Momjian <bruce@momjian.us>)
Responses Re: Improvement of procArray.xmin for VACUUM  (Bruce Momjian <bruce@momjian.us>)
List pgsql-patches
Bruce Momjian <bruce@momjian.us> writes:
> Tom Lane wrote:
>> Uh, no, that's not very clear.  A long-running transaction will be a
>> VACUUM bottleneck because of its own XID, never mind its xmin.

> Well, my secondary addition was to start MyProc->xmin with the current
> xid counter, rather than your own xid.

Don't tell me you seriously believe that would work.

            regards, tom lane

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