Re: [GENERAL] AutoVacuum Behaviour Question - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: [GENERAL] AutoVacuum Behaviour Question
Date
Msg-id 20070629031443.GS32626@alvh.no-ip.org
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In response to Re: [GENERAL] AutoVacuum Behaviour Question  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: [GENERAL] AutoVacuum Behaviour Question
Re: [GENERAL] AutoVacuum Behaviour Question
List pgsql-hackers
Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > Tom Lane wrote:
> >> Yeah, we had better investigate some way to clean them up.  It was never
> >> obvious before that it mattered to get rid of orphan temp tables, but I
> >> guess it does.
>
> > Would it be enough to delete the tuple from pg_class?
>
> No, you need a full DROP.  I don't see that that's harder than removing
> only the pg_class tuple --- the problem in either case is to be sure
> it's OK.  In particular, how to avoid a race condition against an
> incoming backend that adopts that BackendId?  Worst-case, you could be
> deleting a temp table he just made.

Oh, I was just thinking in way for Bruce to get out of his current
situation.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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