I gmane.comp.db.postgresql.novice, skrev Tom Lane:
> Jesper Krogh <jesper@krogh.cc> writes:
> > Why doesn't it use an index on the "like" operator when it doesn't
> > contain a wildcard in the beginning of the pattern?
>
> Probably because your locale isn't C --- locale-specific sort ordering
> usually isn't compatible with the needs of LIKE, so we can only make
> that optimization in C locale.
>
> You can either re-initdb in C locale, or (if you're using 7.4) create a
> specialized index with non-locale-dependent comparison operators. See
> the manual concerning specialized index operator classes.
Locale was set to:
lc_messages = 'en_US.iso885915' # locale for system error
message string
s
lc_monetary = 'en_US.iso885915' # locale for monetary formatting
lc_numeric = 'en_US.iso885915' # locale for number formatting
lc_time = 'en_US.iso885915' # locale for time
formatting
I'll try re-initdb to locale C in the weekend.. this requires dump and
restore right?
Jesper
--
./Jesper Krogh, jesper@krogh.cc
Jabber ID: jesper@jabbernet.dk
