I'm trying to create a function that will take setof results from various other functions (they all produce the same output format). Is this possible? if so how do call it.
ex. CREATE TYPE emp_t AS ( ID int, name varchar(10), age int, salary real, start_date date, city varchar(10), region char(1) );
CREATE OR REPLACE FUNCTION func1() RETURNS SETOF emp_t AS $$ DECLARE v_row emp_t; BEGIN FOR v_row in SELECT * from employee LOOP RETURN NEXT v_row; END LOOP; END; $$ LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION func2() RETURNS SETOF emp_t AS $$ DECLARE v_row emp_t; BEGIN FOR v_row in SELECT * from diff_table_or constraints LOOP RETURN NEXT v_row; END LOOP; END; $$ LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION myanalyze(in_t emp_t) RETURNS SETOF <something> AS $$ DECLARE v_row emp_t; BEGIN FOR v_row in EXECUTE in_t LOOP -- do something RETURN NEXT v_row; END LOOP; END; $$ LANGUAGE plpgsql;
-- so I would like the call to be something like select * from myanalyze(select * funct1()); or select * from myanalyze(select * funct2());
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