Steven Lembark <lembark@xxxxxxxxxxx> writes:
> Q: What is the syntax for a strict, immutable function in
> SQL that returns text suitable for use with either
> creating a "select *" view or a GIST index?
Your example works just fine for me ...
regression=# select lat_lng_text('(42,54.5)');
lat_lng_text
--------------
42-54.5
(1 row)
Maybe you should show a more concrete example of what's not working.
Side comment: I think you need to rethink that text representation,
because it'll be at best ugly with a negative longitude. Is there a
reason not to just use the default record representation (with parens
and a comma)?
regards, tom lane
