Re: [HACKERS] Optimizer is fixed, and faster

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От Bruce Momjian
Тема Re: [HACKERS] Optimizer is fixed, and faster
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Msg-id 199902150237.VAA22396@candle.pha.pa.us
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Ответ на Re: [HACKERS] Optimizer is fixed, and faster  (Vadim Mikheev <vadim@krs.ru>)
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> Bruce Momjian wrote:
> > 
> > This is exactly what I need.  My testing is very limited.  I basically
> > test the functionality, but not real-world samples.  I am still working.
> > I will let everyone know when I am done, and you can throw any queries
> > at it.
> > 
> > Was there a speedup with the new optimizer?  Was the new plan faster?
> > The new optimizer uses 'cost' much more reliably.  I hope our cost
> > estimates for various join types is accurate.
>   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> No. It's ok for netsloop only.

That is bad.  Can you tell someone how to compute those, so perhaps they
can give us accurate numbers.

--  Bruce Momjian                        |  http://www.op.net/~candle maillist@candle.pha.pa.us            |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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