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cvicentiucvicentiu
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Implement ntile window function.
The current implementation does not allow for a dynamic expression within the sum function's parameter.
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8 files changed

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‎mysql-test/r/win_ntile.result

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create table t1 (
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pk int primary key,
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a int,
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b int
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);
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insert into t1 values
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(11 , 0, 10),
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(12 , 0, 10),
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(13 , 1, 10),
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(14 , 1, 10),
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(18 , 2, 10),
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(15 , 2, 20),
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(16 , 2, 20),
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(17 , 2, 20),
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(19 , 4, 20),
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(20 , 4, 20);
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select pk, a, b, ntile(-1) over (order by a)
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from t1;
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ERROR HY000: Argument of NTILE must be greater than 0
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select pk, a, b,
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ntile(0) over (order by a)
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from t1;
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ERROR HY000: Argument of NTILE must be greater than 0
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select pk, a, b,
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ntile(1) over (order by pk)
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from t1;
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pk a b ntile(1) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 1
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15 2 20 1
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16 2 20 1
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17 2 20 1
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18 2 10 1
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19 4 20 1
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20 4 20 1
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select pk, a, b,
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ntile(2) over (order by pk)
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from t1;
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pk a b ntile(2) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 1
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15 2 20 1
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16 2 20 2
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17 2 20 2
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18 2 10 2
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19 4 20 2
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20 4 20 2
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select pk, a, b,
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ntile(3) over (order by pk)
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from t1;
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pk a b ntile(3) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 1
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15 2 20 2
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16 2 20 2
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17 2 20 2
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18 2 10 3
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19 4 20 3
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20 4 20 3
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select pk, a, b,
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ntile(4) over (order by pk)
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from t1;
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pk a b ntile(4) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 2
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15 2 20 2
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16 2 20 2
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17 2 20 3
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18 2 10 3
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19 4 20 4
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20 4 20 4
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select pk, a, b,
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ntile(5) over (order by pk)
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from t1;
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pk a b ntile(5) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 2
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15 2 20 3
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16 2 20 3
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17 2 20 4
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18 2 10 4
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19 4 20 5
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20 4 20 5
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select pk, a, b,
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ntile(6) over (order by pk)
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from t1;
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pk a b ntile(6) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 2
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15 2 20 3
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16 2 20 3
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17 2 20 4
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18 2 10 4
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19 4 20 5
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20 4 20 6
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select pk, a, b,
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ntile(7) over (order by pk)
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from t1;
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pk a b ntile(7) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 2
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15 2 20 3
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16 2 20 3
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17 2 20 4
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18 2 10 5
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19 4 20 6
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20 4 20 7
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select pk, a, b,
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ntile(8) over (order by pk)
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from t1;
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pk a b ntile(8) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 2
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15 2 20 3
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16 2 20 4
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17 2 20 5
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18 2 10 6
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19 4 20 7
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20 4 20 8
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select pk, a, b,
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ntile(9) over (order by pk)
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from t1;
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pk a b ntile(9) over (order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 3
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15 2 20 4
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16 2 20 5
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17 2 20 6
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18 2 10 7
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19 4 20 8
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20 4 20 9
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select pk, a, b,
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ntile(10) over (order by pk)
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from t1;
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pk a b ntile(10) over (order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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15 2 20 5
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16 2 20 6
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17 2 20 7
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18 2 10 8
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19 4 20 9
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20 4 20 10
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select pk, a, b,
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ntile(11) over (order by pk)
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from t1;
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pk a b ntile(11) over (order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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15 2 20 5
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16 2 20 6
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17 2 20 7
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18 2 10 8
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19 4 20 9
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20 4 20 10
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select pk, a, b,
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ntile(20) over (order by pk)
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from t1;
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pk a b ntile(20) over (order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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15 2 20 5
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16 2 20 6
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17 2 20 7
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18 2 10 8
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19 4 20 9
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20 4 20 10
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select pk, a, b,
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ntile(1) over (partition by b order by pk)
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from t1;
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pk a b ntile(1) over (partition by b order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 1
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18 2 10 1
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15 2 20 1
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16 2 20 1
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17 2 20 1
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19 4 20 1
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20 4 20 1
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select pk, a, b,
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ntile(2) over (partition by b order by pk)
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from t1;
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pk a b ntile(2) over (partition by b order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 1
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14 1 10 2
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18 2 10 2
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15 2 20 1
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16 2 20 1
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17 2 20 1
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19 4 20 2
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20 4 20 2
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select pk, a, b,
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ntile(3) over (partition by b order by pk)
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from t1;
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pk a b ntile(3) over (partition by b order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 2
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18 2 10 3
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15 2 20 1
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16 2 20 1
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17 2 20 2
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19 4 20 2
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20 4 20 3
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select pk, a, b,
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ntile(4) over (partition by b order by pk)
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from t1;
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pk a b ntile(4) over (partition by b order by pk)
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11 0 10 1
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12 0 10 1
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13 1 10 2
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14 1 10 3
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18 2 10 4
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15 2 20 1
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16 2 20 1
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17 2 20 2
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19 4 20 3
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20 4 20 4
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select pk, a, b,
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ntile(5) over (partition by b order by pk)
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from t1;
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pk a b ntile(5) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(6) over (partition by b order by pk)
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from t1;
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pk a b ntile(6) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(7) over (partition by b order by pk)
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from t1;
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pk a b ntile(7) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(8) over (partition by b order by pk)
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from t1;
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pk a b ntile(8) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(9) over (partition by b order by pk)
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from t1;
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pk a b ntile(9) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(10) over (partition by b order by pk)
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from t1;
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pk a b ntile(10) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(11) over (partition by b order by pk)
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from t1;
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pk a b ntile(11) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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select pk, a, b,
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ntile(20) over (partition by b order by pk)
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from t1;
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pk a b ntile(20) over (partition by b order by pk)
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11 0 10 1
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12 0 10 2
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13 1 10 3
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14 1 10 4
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18 2 10 5
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15 2 20 1
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16 2 20 2
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17 2 20 3
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19 4 20 4
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20 4 20 5
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drop table t1;

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