Re: [PATCH] backend: compare word-at-a-time in bcTruelen - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [PATCH] backend: compare word-at-a-time in bcTruelen
Date
Msg-id 201002232121.o1NLLlr03268@momjian.us
Whole thread Raw
In response to Re: [PATCH] backend: compare word-at-a-time in bcTruelen  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Tom Lane wrote:
> Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
> > Tom Lane wrote:
> >> Nobody suggested dismissing it.  The point was that it hasn't been
> >> tested adequately to justify applying it now.
> 
> > not sure what testing people want to get done though (there are a fair 
> > amount of results and profiles in the thread)?
> 
> Robert was complaining that the worst case hadn't been characterized
> adequately, which I agree with.  We know it helps a lot on certain
> cases, but what's the downside?

Added to TODO list so we don't forget about it:
Considering improving performance of computing CHAR() value lengths

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.comPG East:  http://www.enterprisedb.com/community/nav-pg-east-2010.do + If your life is a hard
drive,Christ can be your backup. +
 


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