| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: multibyte charater set in levenshtein function |
| Date: | 2010-07-23 02:35:57 |
| Message-ID: | 1279852309-sup-475@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-hackers |
Excerpts from Alexander Korotkov's message of jue jul 22 03:21:57 -0400 2010:
> On Thu, Jul 22, 2010 at 1:59 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> > Ah, I see. That's pretty compelling, I guess. Although it still
> > seems like a lot of code...
> >
> I think there is a way to merge single-byte and multi-byte versions of
> functions without loss in performance using macros and includes (like in
> 'backend/utils/adt/like.c'). Do you think it is acceptable in this case?
Using the trick of a single source file similar to like_match.c that
implements all the different behaviors, and include that file more than
once with different macro definitions, is probably a good idea.
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