postgres=#
postgres=# CREATE TABLE myTable (id int,
postgres(# sid int,
postgres(# name text);
CREATE TABLE
postgres=#
postgres=# INSERT INTO myTable VALUES (1, 1, 'Joe');
INSERT 0 1
postgres=# INSERT INTO myTable VALUES (1, 2, 'Ed');
INSERT 0 1
postgres=# INSERT INTO myTable VALUES (2, 1, 'Mary');
INSERT 0 1
postgres=#
postgres=# CREATE FUNCTION getData(int) RETURNS myTable AS $$
postgres$# SELECT * FROM myTable WHERE id = $1;
postgres$# $$ LANGUAGE SQL;
CREATE FUNCTION
postgres=#
postgres=# SELECT *, upper(name) FROM getData(1) AS t1;
REATE
id | sid | name | upper
----+-----+------+-------
1 | 1 | Joe | JOE
(1 row)
postgres=#
postgres=# drop function getData(int);
DROP FUNCTION
postgres=# drop table myTable;
DROP TABLE
postgres=#
postgres=#