Thread: pgplsql and parameters question

I don't get parameters working in my pgplsql functions.
I.e.:

CREATE FUNCTION add_one (INTEGER) RETURNS INTEGER AS '
BEGIN
RETURN ($1 + 1);
END;
' LANGUAGE 'plpgsql';

Does not work's for me, while the following one works just fine.

CREATE FUNCTION startweek() RETURNS DATE AS '
DECLARE
start date;
BEGIN
start:= to_date(''01-01-''||date_part(''year'', timestamp ''now''),''DD
MM YYYY'') + date_part(''week'', timestamp ''now'') * 7 - 8;
RETURN start;
END;
' LANGUAGE 'plpgsql';

Any idea?
Thanks,

Sorry, error message is (for function add_one):
ERROR: Unable to identify left operator '+' for type 'int4'
        You may need to add parentheses or an explicit cast



Alex Sandini wrote:

> I don't get parameters working in my pgplsql functions.
> I.e.:
>
> CREATE FUNCTION add_one (INTEGER) RETURNS INTEGER AS '
> BEGIN
> RETURN ($1 + 1);
> END;
> ' LANGUAGE 'plpgsql';
>
> Does not work's for me, while the following one works just fine.
>
> CREATE FUNCTION startweek() RETURNS DATE AS '
> DECLARE
> start date;
> BEGIN
> start:= to_date(''01-01-''||date_part(''year'', timestamp ''now''),''DD
> MM YYYY'') + date_part(''week'', timestamp ''now'') * 7 - 8;
> RETURN start;
> END;
> ' LANGUAGE 'plpgsql';
>
> Any idea?
> Thanks,
>