From: Yves Vindevogel <yves.vindevogel@implements.be>
To: pgsql-performance@postgresql.org
Subject: (Re)-indexing on updates
Date: Sun, 21 Aug 2005 20:32:31 +0200
Message-ID: <ba89fec2b148abbc137d9a9b8e2832c7@implements.be> (raw)
Hi,
Say I have a table with column A, B, C, D
A has a unique index on it (primary key)
B and C have a normal index on it
D has no index
If I perform a query like update tbl set D = 'whatever' ;
that should make no difference on the indexes on the other columns,
right ?
Or is there some kind of mechanism that does create a sort of new
record, thus makes the indexes go wild.
Met vriendelijke groeten,
Bien à vous,
Kind regards,
Yves Vindevogel
Implements
Mail: yves.vindevogel@implements.be - Mobile: +32 (478) 80 82 91
Kempische Steenweg 206 - 3500 Hasselt - Tel-Fax: +32 (11) 43 55 76
Web: http://www.implements.be
First they ignore you. Then they laugh at you. Then they fight you.
Then you win.
Mahatma Ghandi.
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To: pgsql-performance@postgresql.org
Cc: yves.vindevogel@implements.be
Subject: Re: (Re)-indexing on updates
In-Reply-To: <ba89fec2b148abbc137d9a9b8e2832c7@implements.be>
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