Re: returning CHAR from C function

Joe Conway <mail(at)joeconway(dot)com> writes:
> As a follow up, this works:

> create OR REPLACE function retchar(text)
> returns "char"

Yes. This is even documented in a reasonably prominent place, ie
the definition of "char" at the bottom of
http://www.ca.postgresql.org/users-lounge/docs/7.2/postgres/datatype-character.html

To wit: the single-byte char type must be spelled "char" (with the
double quotes), not char (which is defined by SQL92 as character(1),
a completely different type).

This is pretty ugly, but I don't see a way to migrate to something
less confusing without breaking lots of existing code.

regards, tom lane