PostgreSQL function Return table

Question

i want to setup a function on PostgreSQL which returns a table. This is the source code of the function:

   CREATE OR REPLACE FUNCTION feiertag(inDate Date)          


        

Answer 1

Use

SELECT *
       FROM feiertag('2017-01-01');

instead of

SELECT feiertag('2017-01-01');

to get the result as a table.

(Treat the function as if it were a table.)