| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | 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: | 2012-02-17 17:09:25 |
| Message-ID: | CA+TgmoY1wXqtuHaq+T1M-2MsU=w4c7wpiVg1SzJVQVT-dqZjZw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Feb 17, 2012 at 10:19 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> What if you did this ONCE and wrote the results to a file someplace?
>
> That's still a cache, you've just defaulted on your obligation to think
> about what conditions require the cache to be flushed.
Yep. Unfortunately, I don't have a good idea how to handle that; I
was hoping someone else did.
> Before going much further with this, we should probably do some timings
> of 64K calls of iswupper and friends, just to see how bad a dumb
> implementation will be.
Can't hurt.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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