Re: Index tuple count != heap tuple count problem identified]

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: Index tuple count != heap tuple count problem identified]
Date: 2000-04-06 01:24:26
Message-ID: 200004060124.VAA22612@candle.pha.pa.us
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> > -----Original Message-----
> > From: pgsql-hackers-owner(at)hub(dot)org [mailto:pgsql-hackers-owner(at)hub(dot)org]On
> > Behalf Of Tom Lane
> >
> > You'll probably recall reports of messages like this out of VACUUM:
> > NOTICE: Index ind1: NUMBER OF INDEX' TUPLES (2002) IS NOT THE
> > SAME AS HEAP' (3003).
> > I've figured out the cause (or at least a cause) of this condition.
> >
> > The CREATE INDEX operation has only bothered to index the non-dead
> > tuples. So, VACUUM's little sanity check fails.
>
>
> Is it wrong to change the implementation of CREATE INDEX ?
> I have a fix.
> It needs the change of duplicate check(tuplesort->btbuild) and
> I've thougth that it would be better to change it after the release
> of 7.0.

Well, it seems we better do something about it before 7.0 is released.
Now it seems we have to decide to change CREATE INDEX, or modify VACUUM.

--
Bruce Momjian | http://www.op.net/~candle
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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