Re: Index on a NULL-value

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От Tobias Brox
Тема Re: Index on a NULL-value
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Msg-id 20050531033158.GI26100@tobias.exoweb.net
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Ответ на Re: Index on a NULL-value  (Bruno Wolff III)
Ответы Re: Index on a NULL-value  (Bruno Wolff III)
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[Tobias Brox]
> test=# set enable_seqscan=off;

[Bruno Wolff III - Mon at 10:16:53PM -0500]
> It isn't surprising that an index wasn't used since a sequential scan is
> going to be faster in your test case.
>
> If you want to test this out, you to want use realistically sized tables.

Wrong.  In this case I was not wondering about the planners choise of not
using the index, but the fact that the planner could not find the index at
all.  Reproducing it on a simple table in a test environment was a valid
strategy to solve this specific problem.

--
Tobias Brox, Beijing

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