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From: Steven Flatt <steven.flatt@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Mark Kirkwood <markir@paradise.net.nz>
Cc: Gregory Stark <stark@enterprisedb.com>
Cc: Bill Moran <wmoran@collaborativefusion.com>
Cc: Vivek Khera <vivek@khera.org>
Cc: Pgsql performance <pgsql-performance@postgresql.org>
Subject: Re: When/if to Reindex
Date: Fri, 24 Aug 2007 12:56:20 -0400
Message-ID: <357fa7590708240956k18e3ba7dv735cdaa99a667312@mail.gmail.com> (raw)
In-Reply-To: <1759.1187972125@sss.pgh.pa.us>
References: <357fa7590707181008k65ab2f20l55bebb3c14f52770@mail.gmail.com>
	<11801.1186624308@sss.pgh.pa.us>
	<357fa7590708090651p71b9bc47n66739f8dbbb4ff57@mail.gmail.com>
	<357fa7590708220955h441cd75ap4c0f0342a1c30a14@mail.gmail.com>
	<873aybw2le.fsf@oxford.xeocode.com>
	<357fa7590708231525h2f48ce4dw3e48ecca5ccddf72@mail.gmail.com>
	<17370.1187927942@sss.pgh.pa.us>
	<46CE6883.10104@paradise.net.nz>
	<357fa7590708240722m204d678eid02b7ce3470eba1a@mail.gmail.com>
	<1759.1187972125@sss.pgh.pa.us>

On 8/24/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
> "Steven Flatt" <steven.flatt@gmail.com> writes:
> > Why do we even need to consider calling RelationGetNumberOfBlocks or
> looking
> > at the pg_class.relpages entry?  My understanding of the expected
> behaviour
> > is that while a reindex is happening, all queries run against the parent
> > table are planned as though the index isn't there (i.e. it's unusable).
>
> Where in the world did you get that idea?


Maybe that's what I was *hoping* the behaviour would be. :)

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