Ok, if all 21 are affected, I can understand the problem.
But allow me to say that this is a "functional error"

On 13 Jun 2005, at 18:02, Richard Huxton wrote:

Yves Vindevogel wrote:
I forgot cc
Begin forwarded message:
From: Yves Vindevogel <[EMAIL PROTECTED]>
Date: Mon 13 Jun 2005 17:45:19 CEST
Subject: Re: [PERFORM] Updates on large tables are extremely slow

Yes, but if I update one column, why should PG update 21 indexes ?
There's only one index affected !

No - all 21 are affected. MVCC creates a new row on disk.

Richard Huxton
Archonet Ltd

Met vriendelijke groeten,
Bien vous,
Kind regards,

Yves Vindevogel

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