Try using EXECUTE.
http://www.postgresql.org/docs/7.4/static/plpgsql-
statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN
-tfo
--
Thomas F. O'Connell
Co-Founder, Information Architect
Sitening, LLC
http://www.sitening.com/
110 30th Avenue North, Suite 6
Nashville, TN 37203-6320
615-260-0005
On Oct 26, 2004, at 11:57 AM, Naeem Bari wrote:
> I have a simple function defined thusly:
>
>
>
> CREATE OR REPLACE FUNCTION datemath(timestamp with time zone, int4,
> varchar)
>
> RETURNS timestamp AS
>
> '
>
> DECLARE
>
> tdat timestamp;
>
> rdat timestamp;
>
> BEGIN
>
> IF ($1 IS NULL) THEN
>
> TDAT := NOW();
>
> ELSE
>
> TDAT := $1;
>
> END IF;
>
>
>
> select tdat + interval ''$2 $3'' into rdat;
>
> return rdat;
>
> END;
>
> '
>
> LANGUAGE 'plpgsql' VOLATILE;
>
>
>
> The problem is the interval part. How do I tell the bugger to use the
> second and third params as input to interval? I have tried different
> ways of escaping, from \’$2 $3\’ to ‘’$2 $3’’ and everything else in
> between, it just doesn’t like it.
>
>
>
> Help! J
>
>
>
> Thanks,
>
> naeem
