Richard Huxton writes:
> Hmm - looking at the source (and \df in psql) it seems the basic problem
> is that COALESCE() isn't a function.
If it were an ordinary function, it couldn't satisfy the property of not
evaluating "unused" arguments ...
regards, tom lane
Emil Rachovsky wrote:
--- Richard Huxton wrote:
Emil Rachovsky wrote:
Hi,
I am trying to overload the "coalesce" function to
accept an integer and a string. Here it is :
CREATE OR REPLACE FUNCTION "coalesce"(a int4, b
"varchar")
RETURNS "varchar" AS
...
I have added it to pg_catalog, b
--- Richard Huxton wrote:
> Emil Rachovsky wrote:
> >
> > Hi,
> > I am trying to overload the "coalesce" function to
> > accept an integer and a string. Here it is :
> >
> > CREATE OR REPLACE FUNCTION "coalesce"(a int4, b
> > "varchar")
> > RETURNS "varchar" AS
> ...
> > I have added it to
Emil Rachovsky wrote:
Hi,
I am trying to overload the "coalesce" function to
accept an integer and a string. Here it is :
CREATE OR REPLACE FUNCTION "coalesce"(a int4, b
"varchar")
RETURNS "varchar" AS
...
I have added it to pg_catalog, but still I cant't use
it, I get an error on the seco
