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Frame bounds using FOLLOWING or PRECEDING can have 0 as cardinal value
This makes them behave exactly like CURRENT ROW. Standard specifies unsigned integer, which includes the value 0. Expand the win_min_max test to include this kind of frame definitions.
This commit is contained in:
Vicențiu Ciorbaru
parent
954e46531d
commit
1c72441364
3 changed files with 1088 additions and 1 deletions
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@ -94,4 +94,771 @@ pk a c min max
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125 6 NULL -10.4 -10.4
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126 6 NULL NULL NULL
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127 6 NULL NULL NULL
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create table t2 (
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pk int primary key,
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a int,
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b int,
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c char(10)
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);
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insert into t2 values
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( 1, 0, 1, 'one'),
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( 2, 0, 2, 'two'),
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( 3, 0, 3, 'three'),
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( 4, 1, 20, 'four'),
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( 5, 1, 10, 'five'),
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( 6, 1, 40, 'six'),
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( 7, 1, 30, 'seven'),
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( 8, 4,300, 'eight'),
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( 9, 4,100, 'nine'),
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(10, 4,200, 'ten'),
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(11, 4,200, 'eleven');
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# First try some invalid argument queries.
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select pk, a, b, c,
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min(c) over (order by pk),
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max(c) over (order by pk),
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min(c) over (partition by a order by pk),
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max(c) over (partition by a order by pk)
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from t2;
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pk a b c min(c) over (order by pk) max(c) over (order by pk) min(c) over (partition by a order by pk) max(c) over (partition by a order by pk)
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1 0 1 one one one one one
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2 0 2 two one two one two
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3 0 3 three one two one two
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4 1 20 four four two four four
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5 1 10 five five two five four
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6 1 40 six five two five six
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7 1 30 seven five two five six
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8 4 300 eight eight two eight eight
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9 4 100 nine eight two eight nine
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10 4 200 ten eight two eight ten
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11 4 200 eleven eight two eight ten
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# Empty frame
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select pk, a, b, c,
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min(b) over (order by pk rows between 2 following and 1 following) as min1,
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max(b) over (order by pk rows between 2 following and 1 following) as max1,
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min(b) over (partition by a order by pk rows between 2 following and 1 following) as min2,
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max(b) over (partition by a order by pk rows between 2 following and 1 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk range between 2 following and 1 following) as min1,
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max(b) over (order by pk range between 2 following and 1 following) as max1,
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min(b) over (partition by a order by pk range between 2 following and 1 following) as min2,
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max(b) over (partition by a order by pk range between 2 following and 1 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 preceding and 2 preceding) as min1,
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max(b) over (order by pk rows between 1 preceding and 2 preceding) as max1,
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min(b) over (partition by a order by pk rows between 1 preceding and 2 preceding) as min2,
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max(b) over (partition by a order by pk rows between 1 preceding and 2 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk range between 1 preceding and 2 preceding) as min1,
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max(b) over (order by pk range between 1 preceding and 2 preceding) as max1,
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min(b) over (partition by a order by pk range between 1 preceding and 2 preceding) as min2,
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max(b) over (partition by a order by pk range between 1 preceding and 2 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 following and 0 following) as min1,
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max(b) over (order by pk rows between 1 following and 0 following) as max1,
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min(b) over (partition by a order by pk rows between 1 following and 0 following) as min2,
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max(b) over (partition by a order by pk rows between 1 following and 0 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk range between 1 following and 0 following) as min1,
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max(b) over (order by pk range between 1 following and 0 following) as max1,
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min(b) over (partition by a order by pk range between 1 following and 0 following) as min2,
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max(b) over (partition by a order by pk range between 1 following and 0 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 following and 0 preceding) as min1,
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max(b) over (order by pk rows between 1 following and 0 preceding) as max1,
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min(b) over (partition by a order by pk rows between 1 following and 0 preceding) as min2,
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max(b) over (partition by a order by pk rows between 1 following and 0 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk range between 1 following and 0 preceding) as min1,
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max(b) over (order by pk range between 1 following and 0 preceding) as max1,
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min(b) over (partition by a order by pk range between 1 following and 0 preceding) as min2,
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max(b) over (partition by a order by pk range between 1 following and 0 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk rows between 0 following and 1 preceding) as min1,
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max(b) over (order by pk rows between 0 following and 1 preceding) as max1,
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min(b) over (partition by a order by pk rows between 0 following and 1 preceding) as min2,
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max(b) over (partition by a order by pk rows between 0 following and 1 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk range between 0 following and 1 preceding) as min1,
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max(b) over (order by pk range between 0 following and 1 preceding) as max1,
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min(b) over (partition by a order by pk range between 0 following and 1 preceding) as min2,
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max(b) over (partition by a order by pk range between 0 following and 1 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four NULL NULL NULL NULL
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5 1 10 five NULL NULL NULL NULL
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6 1 40 six NULL NULL NULL NULL
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7 1 30 seven NULL NULL NULL NULL
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8 4 300 eight NULL NULL NULL NULL
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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# 1 row frame.
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select pk, a, b, c,
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min(b) over (order by pk rows between current row and current row) as min1,
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max(b) over (order by pk rows between current row and current row) as max1,
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min(b) over (partition by a order by pk rows between current row and current row) as min2,
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max(b) over (partition by a order by pk rows between current row and current row) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 1 1 1
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2 0 2 two 2 2 2 2
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3 0 3 three 3 3 3 3
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4 1 20 four 20 20 20 20
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5 1 10 five 10 10 10 10
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6 1 40 six 40 40 40 40
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7 1 30 seven 30 30 30 30
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8 4 300 eight 300 300 300 300
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9 4 100 nine 100 100 100 100
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10 4 200 ten 200 200 200 200
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 0 preceding and current row) as min1,
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max(b) over (order by pk rows between 0 preceding and current row) as max1,
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min(b) over (partition by a order by pk rows between 0 preceding and current row) as min2,
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max(b) over (partition by a order by pk rows between 0 preceding and current row) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 1 1 1
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2 0 2 two 2 2 2 2
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3 0 3 three 3 3 3 3
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4 1 20 four 20 20 20 20
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5 1 10 five 10 10 10 10
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6 1 40 six 40 40 40 40
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7 1 30 seven 30 30 30 30
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8 4 300 eight 300 300 300 300
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9 4 100 nine 100 100 100 100
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10 4 200 ten 200 200 200 200
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 0 preceding and 0 preceding) as min1,
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max(b) over (order by pk rows between 0 preceding and 0 preceding) as max1,
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min(b) over (partition by a order by pk rows between 0 preceding and 0 preceding) as min2,
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max(b) over (partition by a order by pk rows between 0 preceding and 0 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 1 1 1
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2 0 2 two 2 2 2 2
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3 0 3 three 3 3 3 3
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4 1 20 four 20 20 20 20
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5 1 10 five 10 10 10 10
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6 1 40 six 40 40 40 40
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7 1 30 seven 30 30 30 30
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8 4 300 eight 300 300 300 300
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9 4 100 nine 100 100 100 100
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10 4 200 ten 200 200 200 200
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 preceding and 1 preceding) as min1,
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max(b) over (order by pk rows between 1 preceding and 1 preceding) as max1,
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min(b) over (partition by a order by pk rows between 1 preceding and 1 preceding) as min2,
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max(b) over (partition by a order by pk rows between 1 preceding and 1 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two 1 1 1 1
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3 0 3 three 2 2 2 2
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4 1 20 four 3 3 NULL NULL
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5 1 10 five 20 20 20 20
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6 1 40 six 10 10 10 10
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7 1 30 seven 40 40 40 40
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8 4 300 eight 30 30 NULL NULL
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9 4 100 nine 300 300 300 300
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10 4 200 ten 100 100 100 100
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 following and 1 following) as min1,
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max(b) over (order by pk rows between 1 following and 1 following) as max1,
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min(b) over (partition by a order by pk rows between 1 following and 1 following) as min2,
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max(b) over (partition by a order by pk rows between 1 following and 1 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 2 2 2 2
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2 0 2 two 3 3 3 3
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3 0 3 three 20 20 NULL NULL
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4 1 20 four 10 10 10 10
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5 1 10 five 40 40 40 40
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6 1 40 six 30 30 30 30
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7 1 30 seven 300 300 NULL NULL
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8 4 300 eight 100 100 100 100
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9 4 100 nine 200 200 200 200
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10 4 200 ten 200 200 200 200
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11 4 200 eleven NULL NULL NULL NULL
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# Try a larger offset.
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select pk, a, b, c,
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min(b) over (order by pk rows between 3 following and 3 following) as min1,
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max(b) over (order by pk rows between 3 following and 3 following) as max1,
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min(b) over (partition by a order by pk rows between 3 following and 3 following) as min2,
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max(b) over (partition by a order by pk rows between 3 following and 3 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 20 20 NULL NULL
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2 0 2 two 10 10 NULL NULL
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3 0 3 three 40 40 NULL NULL
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4 1 20 four 30 30 30 30
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5 1 10 five 300 300 NULL NULL
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6 1 40 six 100 100 NULL NULL
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7 1 30 seven 200 200 NULL NULL
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8 4 300 eight 200 200 200 200
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9 4 100 nine NULL NULL NULL NULL
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10 4 200 ten NULL NULL NULL NULL
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11 4 200 eleven NULL NULL NULL NULL
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select pk, a, b, c,
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min(b) over (order by pk rows between 3 preceding and 3 preceding) as min1,
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max(b) over (order by pk rows between 3 preceding and 3 preceding) as max1,
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min(b) over (partition by a order by pk rows between 3 preceding and 3 preceding) as min2,
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max(b) over (partition by a order by pk rows between 3 preceding and 3 preceding) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one NULL NULL NULL NULL
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2 0 2 two NULL NULL NULL NULL
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3 0 3 three NULL NULL NULL NULL
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4 1 20 four 1 1 NULL NULL
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5 1 10 five 2 2 NULL NULL
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6 1 40 six 3 3 NULL NULL
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7 1 30 seven 20 20 20 20
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8 4 300 eight 10 10 NULL NULL
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9 4 100 nine 40 40 NULL NULL
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10 4 200 ten 30 30 NULL NULL
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11 4 200 eleven 300 300 300 300
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# 2 row frame.
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select pk, a, b, c,
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min(b) over (order by pk rows between current row and 1 following) as min1,
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max(b) over (order by pk rows between current row and 1 following) as max1,
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min(b) over (partition by a order by pk rows between current row and 1 following) as min2,
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max(b) over (partition by a order by pk rows between current row and 1 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 2 1 2
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2 0 2 two 2 3 2 3
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3 0 3 three 3 20 3 3
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4 1 20 four 10 20 10 20
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5 1 10 five 10 40 10 40
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6 1 40 six 30 40 30 40
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7 1 30 seven 30 300 30 30
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8 4 300 eight 100 300 100 300
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9 4 100 nine 100 200 100 200
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10 4 200 ten 200 200 200 200
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 0 preceding and 1 following) as min1,
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max(b) over (order by pk rows between 0 preceding and 1 following) as max1,
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min(b) over (partition by a order by pk rows between 0 preceding and 1 following) as min2,
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max(b) over (partition by a order by pk rows between 0 preceding and 1 following) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 2 1 2
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2 0 2 two 2 3 2 3
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3 0 3 three 3 20 3 3
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4 1 20 four 10 20 10 20
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5 1 10 five 10 40 10 40
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6 1 40 six 30 40 30 40
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7 1 30 seven 30 300 30 30
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8 4 300 eight 100 300 100 300
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9 4 100 nine 100 200 100 200
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10 4 200 ten 200 200 200 200
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11 4 200 eleven 200 200 200 200
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select pk, a, b, c,
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min(b) over (order by pk rows between 1 preceding and current row) as min1,
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max(b) over (order by pk rows between 1 preceding and current row) as max1,
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min(b) over (partition by a order by pk rows between 1 preceding and current row) as min2,
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max(b) over (partition by a order by pk rows between 1 preceding and current row) as max2
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from t2;
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pk a b c min1 max1 min2 max2
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1 0 1 one 1 1 1 1
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||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 2 3 2 3
|
||||
4 1 20 four 3 20 20 20
|
||||
5 1 10 five 10 20 10 20
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 30 40 30 40
|
||||
8 4 300 eight 30 300 300 300
|
||||
9 4 100 nine 100 300 100 300
|
||||
10 4 200 ten 100 200 100 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 1 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 2 3 2 3
|
||||
4 1 20 four 3 20 20 20
|
||||
5 1 10 five 10 20 10 20
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 30 40 30 40
|
||||
8 4 300 eight 30 300 300 300
|
||||
9 4 100 nine 100 300 100 300
|
||||
10 4 200 ten 100 200 100 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
# Try a larger frame/offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between current row and 3 following) as min1,
|
||||
max(b) over (order by pk rows between current row and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between current row and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between current row and 3 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 20 1 3
|
||||
2 0 2 two 2 20 2 3
|
||||
3 0 3 three 3 40 3 3
|
||||
4 1 20 four 10 40 10 40
|
||||
5 1 10 five 10 300 10 40
|
||||
6 1 40 six 30 300 30 40
|
||||
7 1 30 seven 30 300 30 30
|
||||
8 4 300 eight 100 300 100 300
|
||||
9 4 100 nine 100 200 100 200
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 2 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk rows between 2 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 2 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 2 preceding and 1 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 2 1 2
|
||||
2 0 2 two 1 3 1 3
|
||||
3 0 3 three 1 20 1 3
|
||||
4 1 20 four 2 20 10 20
|
||||
5 1 10 five 3 40 10 40
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 10 300 10 40
|
||||
8 4 300 eight 30 300 100 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 100 300 100 300
|
||||
11 4 200 eleven 100 200 100 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 preceding and current row) as min1,
|
||||
max(b) over (order by pk rows between 3 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 preceding and current row) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 1 3 1 3
|
||||
4 1 20 four 1 20 20 20
|
||||
5 1 10 five 2 20 10 20
|
||||
6 1 40 six 3 40 10 40
|
||||
7 1 30 seven 10 40 10 40
|
||||
8 4 300 eight 10 300 300 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 30 300 100 300
|
||||
11 4 200 eleven 100 300 100 300
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 3 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 1 3 1 3
|
||||
4 1 20 four 1 20 20 20
|
||||
5 1 10 five 2 20 10 20
|
||||
6 1 40 six 3 40 10 40
|
||||
7 1 30 seven 10 40 10 40
|
||||
8 4 300 eight 10 300 300 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 30 300 100 300
|
||||
11 4 200 eleven 100 300 100 300
|
||||
# Check range frame bounds
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and current row) as min1,
|
||||
max(b) over (order by pk range between current row and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and current row) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 2 2 2 2
|
||||
3 0 3 three 3 3 3 3
|
||||
4 1 20 four 20 20 20 20
|
||||
5 1 10 five 10 10 10 10
|
||||
6 1 40 six 40 40 40 40
|
||||
7 1 30 seven 30 30 30 30
|
||||
8 4 300 eight 300 300 300 300
|
||||
9 4 100 nine 100 100 100 100
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and current row) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 2 2 2 2
|
||||
3 0 3 three 3 3 3 3
|
||||
4 1 20 four 20 20 20 20
|
||||
5 1 10 five 10 10 10 10
|
||||
6 1 40 six 40 40 40 40
|
||||
7 1 30 seven 30 30 30 30
|
||||
8 4 300 eight 300 300 300 300
|
||||
9 4 100 nine 100 100 100 100
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 2 2 2 2
|
||||
3 0 3 three 3 3 3 3
|
||||
4 1 20 four 20 20 20 20
|
||||
5 1 10 five 10 10 10 10
|
||||
6 1 40 six 40 40 40 40
|
||||
7 1 30 seven 30 30 30 30
|
||||
8 4 300 eight 300 300 300 300
|
||||
9 4 100 nine 100 100 100 100
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and 1 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and 1 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and 1 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and 1 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one NULL NULL NULL NULL
|
||||
2 0 2 two 1 1 1 1
|
||||
3 0 3 three 2 2 2 2
|
||||
4 1 20 four 3 3 NULL NULL
|
||||
5 1 10 five 20 20 20 20
|
||||
6 1 40 six 10 10 10 10
|
||||
7 1 30 seven 40 40 40 40
|
||||
8 4 300 eight 30 30 NULL NULL
|
||||
9 4 100 nine 300 300 300 300
|
||||
10 4 200 ten 100 100 100 100
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 following and 1 following) as min1,
|
||||
max(b) over (order by pk range between 1 following and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 following and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 following and 1 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 2 2 2 2
|
||||
2 0 2 two 3 3 3 3
|
||||
3 0 3 three 20 20 NULL NULL
|
||||
4 1 20 four 10 10 10 10
|
||||
5 1 10 five 40 40 40 40
|
||||
6 1 40 six 30 30 30 30
|
||||
7 1 30 seven 300 300 NULL NULL
|
||||
8 4 300 eight 100 100 100 100
|
||||
9 4 100 nine 200 200 200 200
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven NULL NULL NULL NULL
|
||||
# Try a larger offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 following and 3 following) as min1,
|
||||
max(b) over (order by pk range between 3 following and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 following and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 following and 3 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 20 20 NULL NULL
|
||||
2 0 2 two 10 10 NULL NULL
|
||||
3 0 3 three 40 40 NULL NULL
|
||||
4 1 20 four 30 30 30 30
|
||||
5 1 10 five 300 300 NULL NULL
|
||||
6 1 40 six 100 100 NULL NULL
|
||||
7 1 30 seven 200 200 NULL NULL
|
||||
8 4 300 eight 200 200 200 200
|
||||
9 4 100 nine NULL NULL NULL NULL
|
||||
10 4 200 ten NULL NULL NULL NULL
|
||||
11 4 200 eleven NULL NULL NULL NULL
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and 3 preceding) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and 3 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and 3 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and 3 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one NULL NULL NULL NULL
|
||||
2 0 2 two NULL NULL NULL NULL
|
||||
3 0 3 three NULL NULL NULL NULL
|
||||
4 1 20 four 1 1 NULL NULL
|
||||
5 1 10 five 2 2 NULL NULL
|
||||
6 1 40 six 3 3 NULL NULL
|
||||
7 1 30 seven 20 20 20 20
|
||||
8 4 300 eight 10 10 NULL NULL
|
||||
9 4 100 nine 40 40 NULL NULL
|
||||
10 4 200 ten 30 30 NULL NULL
|
||||
11 4 200 eleven 300 300 300 300
|
||||
# 2 row frame.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and 1 following) as min1,
|
||||
max(b) over (order by pk range between current row and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and 1 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 2 1 2
|
||||
2 0 2 two 2 3 2 3
|
||||
3 0 3 three 3 20 3 3
|
||||
4 1 20 four 10 20 10 20
|
||||
5 1 10 five 10 40 10 40
|
||||
6 1 40 six 30 40 30 40
|
||||
7 1 30 seven 30 300 30 30
|
||||
8 4 300 eight 100 300 100 300
|
||||
9 4 100 nine 100 200 100 200
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and 1 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 2 1 2
|
||||
2 0 2 two 2 3 2 3
|
||||
3 0 3 three 3 20 3 3
|
||||
4 1 20 four 10 20 10 20
|
||||
5 1 10 five 10 40 10 40
|
||||
6 1 40 six 30 40 30 40
|
||||
7 1 30 seven 30 300 30 30
|
||||
8 4 300 eight 100 300 100 300
|
||||
9 4 100 nine 100 200 100 200
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and current row) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 2 3 2 3
|
||||
4 1 20 four 3 20 20 20
|
||||
5 1 10 five 10 20 10 20
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 30 40 30 40
|
||||
8 4 300 eight 30 300 300 300
|
||||
9 4 100 nine 100 300 100 300
|
||||
10 4 200 ten 100 200 100 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 2 3 2 3
|
||||
4 1 20 four 3 20 20 20
|
||||
5 1 10 five 10 20 10 20
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 30 40 30 40
|
||||
8 4 300 eight 30 300 300 300
|
||||
9 4 100 nine 100 300 100 300
|
||||
10 4 200 ten 100 200 100 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
# Try a larger frame/offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and 3 following) as min1,
|
||||
max(b) over (order by pk range between current row and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and 3 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 20 1 3
|
||||
2 0 2 two 2 20 2 3
|
||||
3 0 3 three 3 40 3 3
|
||||
4 1 20 four 10 40 10 40
|
||||
5 1 10 five 10 300 10 40
|
||||
6 1 40 six 30 300 30 40
|
||||
7 1 30 seven 30 300 30 30
|
||||
8 4 300 eight 100 300 100 300
|
||||
9 4 100 nine 100 200 100 200
|
||||
10 4 200 ten 200 200 200 200
|
||||
11 4 200 eleven 200 200 200 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 2 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk range between 2 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 2 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 2 preceding and 1 following) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 2 1 2
|
||||
2 0 2 two 1 3 1 3
|
||||
3 0 3 three 1 20 1 3
|
||||
4 1 20 four 2 20 10 20
|
||||
5 1 10 five 3 40 10 40
|
||||
6 1 40 six 10 40 10 40
|
||||
7 1 30 seven 10 300 10 40
|
||||
8 4 300 eight 30 300 100 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 100 300 100 300
|
||||
11 4 200 eleven 100 200 100 200
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and current row) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 1 3 1 3
|
||||
4 1 20 four 1 20 20 20
|
||||
5 1 10 five 2 20 10 20
|
||||
6 1 40 six 3 40 10 40
|
||||
7 1 30 seven 10 40 10 40
|
||||
8 4 300 eight 10 300 300 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 30 300 100 300
|
||||
11 4 200 eleven 100 300 100 300
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
pk a b c min1 max1 min2 max2
|
||||
1 0 1 one 1 1 1 1
|
||||
2 0 2 two 1 2 1 2
|
||||
3 0 3 three 1 3 1 3
|
||||
4 1 20 four 1 20 20 20
|
||||
5 1 10 five 2 20 10 20
|
||||
6 1 40 six 3 40 10 40
|
||||
7 1 30 seven 10 40 10 40
|
||||
8 4 300 eight 10 300 300 300
|
||||
9 4 100 nine 30 300 100 300
|
||||
10 4 200 ten 30 300 100 300
|
||||
11 4 200 eleven 100 300 100 300
|
||||
drop table t2;
|
||||
drop table t1;
|
||||
|
|
|
|||
|
|
@ -46,4 +46,325 @@ select pk, a, c, min(c) over (partition by a order by pk ROWS BETWEEN 1 PRECEDIN
|
|||
max(c) over (partition by a order by pk ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) as max
|
||||
from t1;
|
||||
|
||||
create table t2 (
|
||||
pk int primary key,
|
||||
a int,
|
||||
b int,
|
||||
c char(10)
|
||||
);
|
||||
|
||||
insert into t2 values
|
||||
( 1, 0, 1, 'one'),
|
||||
( 2, 0, 2, 'two'),
|
||||
( 3, 0, 3, 'three'),
|
||||
( 4, 1, 20, 'four'),
|
||||
( 5, 1, 10, 'five'),
|
||||
( 6, 1, 40, 'six'),
|
||||
( 7, 1, 30, 'seven'),
|
||||
( 8, 4,300, 'eight'),
|
||||
( 9, 4,100, 'nine'),
|
||||
(10, 4,200, 'ten'),
|
||||
(11, 4,200, 'eleven');
|
||||
|
||||
--echo # First try some invalid argument queries.
|
||||
select pk, a, b, c,
|
||||
min(c) over (order by pk),
|
||||
max(c) over (order by pk),
|
||||
min(c) over (partition by a order by pk),
|
||||
max(c) over (partition by a order by pk)
|
||||
from t2;
|
||||
|
||||
|
||||
|
||||
--echo # Empty frame
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 2 following and 1 following) as min1,
|
||||
max(b) over (order by pk rows between 2 following and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 2 following and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 2 following and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 2 following and 1 following) as min1,
|
||||
max(b) over (order by pk range between 2 following and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 2 following and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 2 following and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 preceding and 2 preceding) as min1,
|
||||
max(b) over (order by pk rows between 1 preceding and 2 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 preceding and 2 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 preceding and 2 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and 2 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and 2 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and 2 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and 2 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 following and 0 following) as min1,
|
||||
max(b) over (order by pk rows between 1 following and 0 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 following and 0 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 following and 0 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 following and 0 following) as min1,
|
||||
max(b) over (order by pk range between 1 following and 0 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 following and 0 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 following and 0 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 following and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 1 following and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 following and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 following and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 following and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 following and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 following and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 following and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 0 following and 1 preceding) as min1,
|
||||
max(b) over (order by pk rows between 0 following and 1 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 0 following and 1 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 0 following and 1 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 following and 1 preceding) as min1,
|
||||
max(b) over (order by pk range between 0 following and 1 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 following and 1 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 following and 1 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # 1 row frame.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between current row and current row) as min1,
|
||||
max(b) over (order by pk rows between current row and current row) as max1,
|
||||
min(b) over (partition by a order by pk rows between current row and current row) as min2,
|
||||
max(b) over (partition by a order by pk rows between current row and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 0 preceding and current row) as min1,
|
||||
max(b) over (order by pk rows between 0 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk rows between 0 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk rows between 0 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 0 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 0 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 0 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 0 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 preceding and 1 preceding) as min1,
|
||||
max(b) over (order by pk rows between 1 preceding and 1 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 preceding and 1 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 preceding and 1 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 following and 1 following) as min1,
|
||||
max(b) over (order by pk rows between 1 following and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 following and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 following and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
--echo # Try a larger offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 following and 3 following) as min1,
|
||||
max(b) over (order by pk rows between 3 following and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 following and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 following and 3 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 preceding and 3 preceding) as min1,
|
||||
max(b) over (order by pk rows between 3 preceding and 3 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 preceding and 3 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 preceding and 3 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # 2 row frame.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between current row and 1 following) as min1,
|
||||
max(b) over (order by pk rows between current row and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between current row and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between current row and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 0 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk rows between 0 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 0 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 0 preceding and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 preceding and current row) as min1,
|
||||
max(b) over (order by pk rows between 1 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 1 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 1 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 1 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 1 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # Try a larger frame/offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between current row and 3 following) as min1,
|
||||
max(b) over (order by pk rows between current row and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between current row and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between current row and 3 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 2 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk rows between 2 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk rows between 2 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk rows between 2 preceding and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 preceding and current row) as min1,
|
||||
max(b) over (order by pk rows between 3 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk rows between 3 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk rows between 3 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk rows between 3 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk rows between 3 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # Check range frame bounds
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and current row) as min1,
|
||||
max(b) over (order by pk range between current row and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and 1 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and 1 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and 1 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and 1 preceding) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 following and 1 following) as min1,
|
||||
max(b) over (order by pk range between 1 following and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 following and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 following and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
--echo # Try a larger offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 following and 3 following) as min1,
|
||||
max(b) over (order by pk range between 3 following and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 following and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 following and 3 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and 3 preceding) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and 3 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and 3 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and 3 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # 2 row frame.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and 1 following) as min1,
|
||||
max(b) over (order by pk range between current row and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 0 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk range between 0 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 0 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 0 preceding and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 1 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 1 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 1 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 1 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
--echo # Try a larger frame/offset.
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between current row and 3 following) as min1,
|
||||
max(b) over (order by pk range between current row and 3 following) as max1,
|
||||
min(b) over (partition by a order by pk range between current row and 3 following) as min2,
|
||||
max(b) over (partition by a order by pk range between current row and 3 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 2 preceding and 1 following) as min1,
|
||||
max(b) over (order by pk range between 2 preceding and 1 following) as max1,
|
||||
min(b) over (partition by a order by pk range between 2 preceding and 1 following) as min2,
|
||||
max(b) over (partition by a order by pk range between 2 preceding and 1 following) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and current row) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and current row) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and current row) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and current row) as max2
|
||||
from t2;
|
||||
|
||||
select pk, a, b, c,
|
||||
min(b) over (order by pk range between 3 preceding and 0 preceding) as min1,
|
||||
max(b) over (order by pk range between 3 preceding and 0 preceding) as max1,
|
||||
min(b) over (partition by a order by pk range between 3 preceding and 0 preceding) as min2,
|
||||
max(b) over (partition by a order by pk range between 3 preceding and 0 preceding) as max2
|
||||
from t2;
|
||||
|
||||
drop table t2;
|
||||
drop table t1;
|
||||
|
|
|
|||
|
|
@ -1688,7 +1688,6 @@ public:
|
|||
is_top_bound(is_top_bound_arg), n_rows(n_rows_arg),
|
||||
cursor(thd, partition_list)
|
||||
{
|
||||
DBUG_ASSERT(n_rows > 0);
|
||||
}
|
||||
|
||||
void init(READ_RECORD *info)
|
||||
|
|
|
|||
Loading…
Reference in a new issue