Re: Help on indexing timestamps

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От Tom Lane
Тема Re: Help on indexing timestamps
Дата
Msg-id 264.1047049503@sss.pgh.pa.us
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Ответ на Re: Help on indexing timestamps  (Andre Schubert <andre@km3.de>)
Ответы Re: Help on indexing timestamps  (Andre Schubert <andre@km3.de>)
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Andre Schubert <andre@km3.de> writes:
> Yes if i use BETWEEN and type in the dates by hand the query takes about 200ms with explain analyze.
> I think these is a good performance.
> But if i use now() instead of manually typed dates the query take about 1400ms :(
> I thought the somebody posted to this list, that now() is a function that is not cached,
> and thatswhy does not work pretty well with indexes.

Update to 7.3, and that problem will go away.
        regards, tom lane


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