From: | Neil Conway <nconway(at)klamath(dot)dyndns(dot)org> |
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To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: little question |
Date: | 2000-12-07 17:26:58 |
Message-ID: | 20001207122658.A553@klamath.dyndns.org |
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Thread: | |
Lists: | pgsql-general |
On Thu, Dec 07, 2000 at 10:40:34AM -0200, Vilson farias wrote:
> Lets suppose I have a table with 1000 lines. I'd deleted 900 lines and after
> this I'd done a vacuundb. The question is : The file that contains this
> table will have its size reduced or I'll see no size changes?
By lines, I assume you means rows.
The size will not be reduced, because Postgres will just mark
the deleted rows as 'deleted', and ignore them - they aren't
actually deleted on disk. To do this, run a 'VACUUM' on the
table.
HTH,
Neil
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Neil Conway <neilconway(at)home(dot)com>
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