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Old 05-10-2008, 03:05 PM
Bruce Momjian
 
Posts: n/a
Default Re: Small TRUNCATE glitch


Added to TODO:

o Clear table counters on TRUNCATE

http://archives.postgresql.org/pgsql...4/msg00169.php


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Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > Tom Lane wrote:
> >> Just noticed that TRUNCATE fails to clear the stats collector's counts
> >> for the table. I am not sure if it should reset the event counts or
> >> not (any thoughts?) but surely it is wrong to not zero the live/dead
> >> tuple counts.

>
> > Agreed, the live/dead counters should be reset. Regarding event counts,
> > my take is that we should have a separate statement count for truncate
> > (obviously not a tuple count), and the others should be left alone.

>
> I thought some more about how to do it, and stumbled over how to cope
> with TRUNCATE being rolled back. That nixed my first idea of just
> having TRUNCATE send a zero-the-counters-now message.
>
> regards, tom lane
>
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Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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