Re: Multiple Indexing, performance impact

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От Bruce Momjian
Тема Re: Multiple Indexing, performance impact
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Msg-id 200106222222.f5MMMmx27786@candle.pha.pa.us
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Ответ на Re: Multiple Indexing, performance impact  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Multiple Indexing, performance impact  (Tom Lane <tgl@sss.pgh.pa.us>)
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> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> >> Hmm.  Anyone like the idea of a platform-specific default established
> >> by configure?  We could set it in the template file on platforms where
> >> the default SHMMAX is too small to allow 1000 buffers.
>
> > Template file seems like a good idea for platforms that can't handle the
> > default.  I don't think configure should be doing such tests because the
> > target could be a different kernel.
>
> Right, I wasn't thinking of an actual run-time test in configure, just
> that we could use it to let the OS-specific template file override the
> normal default.
>
> We could offer a --with switch to manually choose the default, too.

Good idea, yes.  Not sure if we need a --with switch because they can
just edit the postgresql.conf or postgresql.conf.sample file.

--
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