pg的function的编写

语法

CREATE OR REPLACE FUNCTION public.em_quick_query(
IN userid character varying,
IN orgid character varying)
RETURNS TABLE(id bigint, parent_id bigint) AS
$BODY$
BEGIN
RETURN QUERY EXECUTE
'select id,parent_id from ... where xx = ' || id || ' and ...' ;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100
ROWS 1000;
ALTER FUNCTION public.em_quick_query(character varying, character varying)
OWNER TO myuser;

调用

select * from em_quick_query(201,10)

关键字：varying, character, function, bigint