On 9/17/07, Ow Mun Heng <Ow.Mun.Heng@xxxxxxx> wrote: > > > CREATE OR REPLACE FUNCTION foo_func(fromdate timestamp, todate > > > timestamp, code text) > > > LANGUAGE 'sql' IMMUTABLE STRICT; > > But If I were to use ALIASINg, I get an error > > > > eg: DECLARE > > DECLARE > > fromdate ALIAS for $1; > > todate ALIAS for $2; > > code ALIAS for $3; > > > > > > ERROR: syntax error at or near "ALIAS" > > LINE 5: fromdate ALIAS for $1; > anyone knows how come I can't use the reference fromdate/todate etc or > use aliases but have to resort to using $1/$2 etc? You seem to be confusing SQL with PL/pgSQL. If you want variables, aliases, flow control etc instead of a simple macro, you need to use a procedural language. http://www.postgresql.org/docs/8.2/static/xfunc-sql.html http://www.postgresql.org/docs/8.2/static/plpgsql.html ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
