| 12345678910111213 |
- BEGIN;
- SELECT sum(salary) OVER w, avg(salary) OVER w
- FROM empsalary
- WINDOW w AS (PARTITION BY depname ORDER BY salary DESC);
- END;
-
- CREATE FUNCTION days_of_week() RETURNS SETOF text AS $$
- BEGIN
- FOR i IN 7 .. 13 LOOP
- RETURN NEXT to_char(to_date(i::text,'J'),'TMDy');
- END LOOP;
- END;
- $$ STABLE LANGUAGE plpgsql;
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