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