170 lines
3.8 KiB
SQL
170 lines
3.8 KiB
SQL
# name: test/sql/window/test_basic_window.test
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# description: Most basic window function
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# group: [window]
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statement ok
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PRAGMA enable_verification
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statement ok
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CREATE TABLE empsalary (depname varchar, empno bigint, salary int, enroll_date date)
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statement ok
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INSERT INTO empsalary VALUES ('develop', 10, 5200, '2007-08-01'), ('sales', 1, 5000, '2006-10-01'), ('personnel', 5, 3500, '2007-12-10'), ('sales', 4, 4800, '2007-08-08'), ('personnel', 2, 3900, '2006-12-23'), ('develop', 7, 4200, '2008-01-01'), ('develop', 9, 4500, '2008-01-01'), ('sales', 3, 4800, '2007-08-01'), ('develop', 8, 6000, '2006-10-01'), ('develop', 11, 5200, '2007-08-15')
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# basic example from postgres' window.sql
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query TIIR
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SELECT depname, empno, salary, sum(salary) OVER (PARTITION BY depname ORDER BY empno) FROM empsalary ORDER BY depname, empno
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----
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develop 7 4200 4200.000000
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develop 8 6000 10200.000000
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develop 9 4500 14700.000000
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develop 10 5200 19900.000000
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develop 11 5200 25100.000000
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personnel 2 3900 3900.000000
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personnel 5 3500 7400.000000
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sales 1 5000 5000.000000
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sales 3 4800 9800.000000
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sales 4 4800 14600.000000
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# sum
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query R
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SELECT sum(salary) OVER (PARTITION BY depname ORDER BY salary) ss FROM empsalary ORDER BY depname, ss
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----
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4200.000000
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8700.000000
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19100.000000
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19100.000000
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25100.000000
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3500.000000
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7400.000000
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9600.000000
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9600.000000
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14600.000000
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# row_number
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query I
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SELECT row_number() OVER (PARTITION BY depname ORDER BY salary) rn FROM empsalary ORDER BY depname, rn
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----
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1
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2
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3
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4
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5
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1
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2
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1
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2
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3
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# first_value
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query II
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SELECT empno, first_value(empno) OVER (PARTITION BY depname ORDER BY empno) fv FROM empsalary ORDER BY 2 DESC, 1 ASC
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----
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7 7
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8 7
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9 7
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10 7
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11 7
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2 2
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5 2
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1 1
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3 1
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4 1
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# last_value
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query III
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SELECT depname, empno,
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last_value(empno) OVER (
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PARTITION BY depname ORDER BY empno ASC
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ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
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) fv
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FROM empsalary
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ORDER BY 1, 2
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----
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develop 7 11
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develop 8 11
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develop 9 11
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develop 10 11
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develop 11 11
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personnel 2 5
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personnel 5 5
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sales 1 4
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sales 3 4
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sales 4 4
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# rank_dense
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query TII
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SELECT depname, salary, dense_rank() OVER (PARTITION BY depname ORDER BY salary) FROM empsalary order by depname, salary
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----
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develop 4200 1
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develop 4500 2
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develop 5200 3
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develop 5200 3
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develop 6000 4
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personnel 3500 1
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personnel 3900 2
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sales 4800 1
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sales 4800 1
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sales 5000 2
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# rank
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query TII
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SELECT depname, salary, rank() OVER (PARTITION BY depname ORDER BY salary) FROM empsalary order by depname, salary
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----
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develop 4200 1
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develop 4500 2
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develop 5200 3
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develop 5200 3
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develop 6000 5
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personnel 3500 1
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personnel 3900 2
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sales 4800 1
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sales 4800 1
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sales 5000 3
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# min/max/avg
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query TIIR
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SELECT depname, min(salary) OVER (PARTITION BY depname ORDER BY salary, empno) m1, max(salary) OVER (PARTITION BY depname ORDER BY salary, empno) m2, AVG(salary) OVER (PARTITION BY depname ORDER BY salary, empno) m3 FROM empsalary ORDER BY depname, empno
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----
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develop 4200 4200 4200.000000
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develop 4200 6000 5020.000000
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develop 4200 4500 4350.000000
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develop 4200 5200 4633.333333
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develop 4200 5200 4775.000000
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personnel 3500 3900 3700.000000
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personnel 3500 3500 3500.000000
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sales 4800 5000 4866.666667
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sales 4800 4800 4800.000000
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sales 4800 4800 4800.000000
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# stddev_pop
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query TR
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SELECT depname, STDDEV_POP(salary) OVER (PARTITION BY depname ORDER BY salary, empno) s FROM empsalary ORDER BY depname, empno
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----
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develop 0.000000
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develop 627.375486
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develop 150.000000
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develop 418.993503
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develop 438.035387
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personnel 200.000000
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personnel 0.000000
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sales 94.280904
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sales 0.000000
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sales 0.000000
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# covar_pop
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query TR
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SELECT depname, COVAR_POP(salary, empno) OVER (PARTITION BY depname ORDER BY salary, empno) c FROM empsalary ORDER BY depname, empno
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----
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develop 0.000000
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develop 240.000000
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develop 150.000000
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develop 477.777778
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develop 606.250000
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personnel -300.000000
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personnel 0.000000
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sales -111.111111
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sales 0.000000
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sales 0.000000
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