Vacuuming - how often?

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От Scott Muir
Тема Vacuuming - how often?
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Msg-id NCBBKLMCJOGCLFHOFECNIENCEEAA.wsmuir@islandnet.com
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Ответы Re: Vacuuming - how often?  ("Command Prompt, Inc." <pgsql-general@commandprompt.com>)
Re: Vacuuming - how often?  (Lincoln Yeoh <lyeoh@pop.jaring.my>)
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I'm using 7.1 on redhat 7.1...

I had a query result which startled me a bit...  it was a simple join and
the result was like a cartesian product like I hadn't bothered with a when
clause.

I ran vacuum from inside pgaccess and the results of the query changed to
what I was expecting in the first place...

What I'm wondering is what is the likely problem here?  Does this mean that
*regular* maintenance is required?  the data in this database is pretty much
append only.. with some updating, but next to zero deleting is done...

any comments on this?

thanks
Scott.





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