Re: PL/pgSQL functions - text / varchar - havy performance

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От Andrew Sullivan
Тема Re: PL/pgSQL functions - text / varchar - havy performance
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Msg-id 20030829155401.GM19388@libertyrms.info
обсуждение исходный текст
Ответ на Re: PL/pgSQL functions - text / varchar - havy performance  (Bill Moran <wmoran@potentialtech.com>)
Ответы Re: PL/pgSQL functions - text / varchar - havy performance  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-performance
On Fri, Aug 29, 2003 at 11:34:13AM -0400, Bill Moran wrote:
> Have any explanation as to why that function is so slow?

Sorry, no.  It might have to do with the planning, though.  I believe
the funciton is planned the first time it is run.  It may need to be
marked as "STABLE" in order to use any indexes, and that could be
part of the problem.

A

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