Its a typo..it should be "RETURNS BOOLEAN" and not "RETURN BOOLEAN"
-Sharmila
--- On Mon, 2/23/09, SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com> wrote:
> From: SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com>
> Subject: Function that returns Boolean
> To: "General postgres mailing list" <pgsql-general@postgresql.org>
> Date: Monday, February 23, 2009, 12:39 PM
> Hi,
> This is a simple function that returns a boolean ..
>
> create or replace function check_value( newValue IN
> VARCHAR,
> oldValue IN VARCHAR ) RETURN BOOLEAN
> as
> '
> BEGIN
> IF ( newValue != oldValue)
> then return true;
> else
> return false;
> END IF;
> END;
> '
> LANGUAGE 'plpgsql'
>
> But I get this error...what is wrong with this ?
>
> [Error] Script lines: 1-13 -------------------------
> ERROR: syntax error at or near "RETURN"
> Line: 2
>
> Thanks
> Sharmila