Re: Autovacuum and OldestXmin - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Autovacuum and OldestXmin
Date
Msg-id 11234.1195756098@sss.pgh.pa.us
Whole thread Raw
In response to Re: Autovacuum and OldestXmin  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
List pgsql-hackers
Alvaro Herrera <alvherre@alvh.no-ip.org> writes:
> Simon Riggs wrote:
>> [Also there is a comment saying "this is a bug" in autovacuum.c
>> Are we thinking to go production with that phrase in the code?]

> Yeah, well, it's only a comment ;-)  The problem is that a worker can
> decide that a table needs to be vacuumed, if another worker has finished
> vacuuming it in the last 500 ms.  I proposed a mechanism to close the
> hole but it was too much of a hassle.

> Maybe we could remove the comment for the final release? :-)

What, you think we should try to hide our shortcomings?  There are
hundreds of XXX and FIXME comments in the sources.
        regards, tom lane


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