Re: Function's final statement must be a SELECT

["Premil Agarwal" <preagarw(at)gmail(dot)com>]

Great !!! COALESCE() does the job for me.

( BTW, replacing "SQL" by "PLPGSQL " still gets the same error ..... )

Thanks a lot Alvaro !!!

On Wed, May 14, 2008 at 4:36 PM, Alvaro Herrera <alvherre(at)commandprompt(dot)com> wrote:

Premil Agarwal escribió:

> I am trying to write a function in PgAdmin 1.8.2 for postgres 8.3. The
> function should check the input parameter for NULL. If its NULL then
> function should return 'Auto' otherwise return the input as such.

>
> CREATE FUNCTION check_for_null( inp character varying) RETURNS character
> varying AS $$

[...]
> $$ LANGUAGE SQL;

             ^^^

There's your problem.  Try using PLPGSQL instead.

In any case, you can do this with COALESCE() and it's much easier.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
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