Re: [HACKERS] why the DB file size does not reduce when 'delete' the data in DB?

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От The Hermit Hacker
Тема Re: [HACKERS] why the DB file size does not reduce when 'delete' the data in DB?
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Msg-id Pine.BSF.4.33.0103020804370.88613-100000@mobile.hub.org
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On Fri, 2 Mar 2001, Jaruwan Laongmal wrote:

> I had deleted a very large number of records out of my SQL table in order to
> decrease the harddisk space.  But after I use command 'ls -l
> /usr/local/pgsql/data/base/', it is found that the size of concerning files
> do not reduce due to the effect of 'delete' SQL command.  What should I do
> if I would like to decrease the harddisk space?

VACUUM

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