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Re: Notes about fixing regexes and UTF-8 (yet again)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Notes about fixing regexes and UTF-8 (yet again)
Date: 2012-02-24 00:10:31
Message-ID: 26174.1330042231@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> On fre, 2012-02-17 at 10:19 -0500, Tom Lane wrote:
>> That's still a cache, you've just defaulted on your obligation to think
>> about what conditions require the cache to be flushed.  (In the case at
>> hand, the trigger for a cache rebuild would probably need to be a glibc
>> package update, which we have no way of knowing about.) 

> We basically hardwire locale behavior at initdb time, so computing this
> then and storing it somewhere for eternity would be consistent.

Well, only if we could cache every locale-related libc inquiry we ever
make.  Locking down only part of the behavior does not sound like a
plan.

			regards, tom lane

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