plpgsql ? - Mailing list pgsql-sql

Hi all,

i have a question 'plpgsql'

my code

CREATE FUNCTION autono (text,text) RETURNS text AS ' DECLARE   a1 ALIAS FOR $1;   a2 ALIAS FOR $1;   ret_val text;
BEGIN  select tna  into ret_val from a1  where pamt_no=a2;
 
 RETURN ret_val;
END;' LANGUAGE 'plpgsql'


error run  "   select tna  into ret_val from a1  where pamt_no=a2;    "
help me ,thanks