Re: Case insensitive string comparison?

On Mon, May 21, 2001 at 12:15:41PM +0300, Cedar Cox wrote:
>
> On Tue, 15 May 2001, Karel Zak wrote:
>
> > On Tue, May 15, 2001 at 02:48:24PM +0200, Borek Lupom?ský wrote:
> > > Is there an operator for case insensitive string comparison, or
> > > should I use regular expression matching with ~* '^string$'?
> >
> > possibility:
> >
> > - use upper() / lower() inside query
>
> Ok, this is probably a really silly question: which is faster?
> I expect they are nearly identical code. Just wondering...
>

Only one answer will be right ... try all possibility :-)

IMHO the 'ILIKE' is the most fast, because it's simple for parser and
it's one function.

Karel

--
Karel Zak <zakkr(at)zf(dot)jcu(dot)cz>
http://home.zf.jcu.cz/~zakkr/

C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz