Re: Point and function help

"Andy Lewis" <jumboc(at)comcast(dot)net> writes:
> CREATE OR REPLACE FUNCTION public.map_point(pg_catalog.varchar,
> pg_catalog.varchar, pg_catalog.varchar)
> RETURNS point AS
> 'SELECT map_loc from zip_code where zip = \'$3\' and lower(state) =
> lower(\'$2\') and lower(city) = lower(\'$1\')'
> LANGUAGE 'sql' VOLATILE;

You don't want to quote the parameter references --- what you've got
there is simple literal constants '$3' etc. Try

CREATE OR REPLACE FUNCTION public.map_point(pg_catalog.varchar,
pg_catalog.varchar, pg_catalog.varchar)
RETURNS point AS
'SELECT map_loc from zip_code where zip = $3 and lower(state) =
lower($2) and lower(city) = lower($1)'
LANGUAGE 'sql' VOLATILE;

Also, I can't see any reason why this function needs to be VOLATILE;
STABLE should be enough, no?

regards, tom lane