RE: primary key scans in sequence

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От Gerald Gutierrez
Тема RE: primary key scans in sequence
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Msg-id 5.1.0.14.0.20010531162518.00ae4a68@coldresist.com
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Ответ на primary key scans in sequence  ("bernd" <bernd@matrixware.at>)
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I think you're just witnessing the optimizer at work. If it thinks that 
doing sequential scans is faster, it will ignore the indices.

At 11:03 AM 5/31/2001 +0200, Koen Antonissen wrote:

>Thing I descovered after i posted to the group was that after creating
>the scheme again, the indexes are used! after vacuum (analyze) the use
>of indexes was gone again on certain tables...
>
>Any other suggestions?




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