Re: Query does not use index

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От Martin Hampl
Тема Re: Query does not use index
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Msg-id 63684DAC-9B88-11D8-9140-000393674318@gmx.de
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Ответ на Re: Query does not use index  (Tom Lane <tgl@sss.pgh.pa.us>)
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Am 01.05.2004 um 17:48 schrieb Tom Lane:

> Martin Hampl <Martin.Hampl@gmx.de> writes:
>> Am 30.04.2004 um 17:52 schrieb Tom Lane:
>>> It could be that this table has a lot of empty pages near the front,
>
>> I never deleted anything from this database, but it might be that I
>> dropped some of the tables a couple of times when populating the
>> database. Also 'copy from' failed a couple of times. Can that have the
>> same effect?
>
> A failed copy-in would leave a dead row for each input line that it was
> able to process before hitting the error.  So potentially that could
> account for a lot of dead rows.  I think there is a hint on the COPY
> reference page suggesting that you VACUUM in such a situation ...

There is. Well...

Regards,
Martin


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