MDEV-12779 Oracle/DB2 Compatibility Implicit Ordering for ROW_NUMBER OVER
Users expect window functions to produce a certain ordering of rows in the final result set. Although the standard does not require this, we already have the filesort result done for when we computed the window function. If there is no ORDER BY attached to the query, just keep it till the SELECT is completely evaluated and use that to print the result. Update test cases as many did not take care to guarantee a stable result.
This commit is contained in:
Vicențiu Ciorbaru
parent
dd6e74c62a
commit
1c6b982e02
@ -38,10 +38,10 @@ a row_number() over (partition by a order by b)
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select a, b, x, row_number() over (partition by a order by x) from t1;
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a b x row_number() over (partition by a order by x)
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2 10 xx 1
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2 10 zz 3
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2 20 yy 2
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3 10 xxx 2
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2 10 zz 3
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3 20 vvv 1
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3 10 xxx 2
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drop table t1;
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create table t1 (pk int primary key, a int, b int);
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insert into t1 values
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@ -54,13 +54,14 @@ select
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pk, a, b,
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row_number() over (order by a),
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row_number() over (order by b)
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from t1;
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from t1
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order by b;
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pk a b row_number() over (order by a) row_number() over (order by b)
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1 10 22 1 5
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2 11 21 2 4
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3 12 20 3 3
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4 13 19 4 2
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5 14 18 5 1
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4 13 19 4 2
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3 12 20 3 3
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2 11 21 2 4
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1 10 22 1 5
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drop table t1;
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#
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# Try RANK() function
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@ -228,16 +229,16 @@ count(*) over (partition by c order by pk desc
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rows between 2 preceding and 2 following) as CNT
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from t1;
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pk c CNT
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1 1 3
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2 1 4
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3 1 4
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4 1 3
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5 2 3
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6 2 4
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7 2 5
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8 2 5
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9 2 4
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3 1 4
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2 1 4
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1 1 3
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10 2 3
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9 2 4
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8 2 5
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7 2 5
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6 2 4
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5 2 3
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drop table t0,t1;
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#
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# Resolution of window names
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@ -535,42 +536,40 @@ insert into t3 values
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(5, 2),
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(6, 2);
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select
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pk,
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val,
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count(val) over (order by val
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range between current row and
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current row)
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as CNT
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from t3;
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pk val CNT
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0 1 3
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1 1 3
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2 1 3
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3 2 4
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4 2 4
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5 2 4
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6 2 4
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val CNT
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1 3
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1 3
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1 3
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2 4
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2 4
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2 4
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2 4
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insert into t3 values
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(7, 3),
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(8, 3);
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select
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pk,
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val,
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count(val) over (order by val
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range between current row and
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current row)
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as CNT
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from t3;
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pk val CNT
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0 1 3
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1 1 3
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2 1 3
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3 2 4
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4 2 4
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5 2 4
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6 2 4
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7 3 2
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8 3 2
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val CNT
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1 3
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1 3
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1 3
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2 4
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2 4
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2 4
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2 4
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3 2
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3 2
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drop table t3;
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# Now, check with PARTITION BY
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create table t4 (
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@ -599,7 +598,6 @@ insert into t4 values
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(5678, 208, 3);
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select
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part_id,
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pk,
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val,
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count(val) over (partition by part_id
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order by val
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@ -607,31 +605,30 @@ range between current row and
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current row)
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as CNT
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from t4;
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part_id pk val CNT
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1234 100 1 3
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1234 101 1 3
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1234 102 1 3
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1234 103 2 4
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1234 104 2 4
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1234 105 2 4
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1234 106 2 4
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1234 107 3 2
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1234 108 3 2
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5678 200 1 3
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5678 201 1 3
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5678 202 1 3
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5678 203 2 4
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5678 204 2 4
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5678 205 2 4
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5678 206 2 4
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5678 207 3 2
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5678 208 3 2
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part_id val CNT
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1234 1 3
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1234 1 3
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1234 1 3
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1234 2 4
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1234 2 4
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1234 2 4
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1234 2 4
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1234 3 2
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1234 3 2
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5678 1 3
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5678 1 3
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5678 1 3
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5678 2 4
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5678 2 4
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5678 2 4
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5678 2 4
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5678 3 2
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5678 3 2
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#
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# Try RANGE UNBOUNDED PRECEDING | FOLLOWING
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#
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select
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part_id,
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pk,
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val,
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count(val) over (partition by part_id
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order by val
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@ -639,28 +636,27 @@ range between unbounded preceding and
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current row)
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as CNT
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from t4;
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part_id pk val CNT
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1234 100 1 3
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1234 101 1 3
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1234 102 1 3
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1234 103 2 7
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1234 104 2 7
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1234 105 2 7
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1234 106 2 7
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1234 107 3 9
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1234 108 3 9
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5678 200 1 3
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5678 201 1 3
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5678 202 1 3
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5678 203 2 7
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5678 204 2 7
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5678 205 2 7
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5678 206 2 7
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5678 207 3 9
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5678 208 3 9
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part_id val CNT
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1234 1 3
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1234 1 3
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1234 1 3
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1234 2 7
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1234 2 7
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1234 2 7
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1234 2 7
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1234 3 9
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1234 3 9
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5678 1 3
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5678 1 3
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5678 1 3
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5678 2 7
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5678 2 7
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5678 2 7
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5678 2 7
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5678 3 9
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5678 3 9
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select
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part_id,
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pk,
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val,
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count(val) over (partition by part_id
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order by val
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@ -668,28 +664,27 @@ range between current row and
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unbounded following)
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as CNT
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from t4;
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part_id pk val CNT
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1234 100 1 9
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1234 101 1 9
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1234 102 1 9
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1234 103 2 6
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1234 104 2 6
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1234 105 2 6
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1234 106 2 6
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1234 107 3 2
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1234 108 3 2
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5678 200 1 9
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5678 201 1 9
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5678 202 1 9
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5678 203 2 6
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5678 204 2 6
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5678 205 2 6
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5678 206 2 6
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5678 207 3 2
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5678 208 3 2
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part_id val CNT
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1234 1 9
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1234 1 9
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1234 1 9
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1234 2 6
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1234 2 6
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1234 2 6
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1234 2 6
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1234 3 2
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1234 3 2
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5678 1 9
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5678 1 9
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5678 1 9
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5678 2 6
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5678 2 6
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5678 2 6
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5678 2 6
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5678 3 2
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5678 3 2
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select
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part_id,
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pk,
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val,
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count(val) over (partition by part_id
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order by val
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@ -697,25 +692,25 @@ range between unbounded preceding and
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unbounded following)
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as CNT
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from t4;
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part_id pk val CNT
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1234 100 1 9
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1234 101 1 9
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1234 102 1 9
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1234 103 2 9
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1234 104 2 9
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1234 105 2 9
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1234 106 2 9
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1234 107 3 9
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1234 108 3 9
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5678 200 1 9
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5678 201 1 9
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5678 202 1 9
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5678 203 2 9
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5678 204 2 9
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5678 205 2 9
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5678 206 2 9
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5678 207 3 9
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5678 208 3 9
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part_id val CNT
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1234 1 9
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1234 1 9
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1234 1 9
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1234 2 9
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1234 2 9
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1234 2 9
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1234 2 9
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1234 3 9
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1234 3 9
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5678 1 9
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5678 1 9
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5678 1 9
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5678 2 9
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5678 2 9
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5678 2 9
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5678 2 9
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5678 3 9
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5678 3 9
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drop table t4;
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#
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# MDEV-9695: Wrong window frame when using RANGE BETWEEN N FOLLOWING AND PRECEDING
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@ -881,15 +876,15 @@ RANGE BETWEEN UNBOUNDED PRECEDING
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AND 10 FOLLOWING) as cnt
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from t1;
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pk a cnt
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1 1 9
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2 2 9
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3 4 9
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4 8 9
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5 26 5
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6 27 5
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7 40 3
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8 71 2
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9 72 2
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8 71 2
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7 40 3
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6 27 5
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5 26 5
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4 8 9
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3 4 9
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2 2 9
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1 1 9
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select
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pk, a,
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count(a) over (ORDER BY a
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@ -929,15 +924,15 @@ RANGE BETWEEN UNBOUNDED PRECEDING
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AND 10 PRECEDING) as cnt
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from t1;
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pk a cnt
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1 1 5
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2 2 5
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3 4 5
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4 8 5
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5 26 3
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6 27 3
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7 40 2
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8 71 0
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9 72 0
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8 71 0
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7 40 2
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6 27 3
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5 26 3
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4 8 5
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3 4 5
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2 2 5
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1 1 5
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select
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pk, a,
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count(a) over (ORDER BY a
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@ -977,15 +972,15 @@ RANGE BETWEEN 1 PRECEDING
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AND CURRENT ROW) as cnt
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from t1;
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pk a cnt
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1 1 2
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2 2 1
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3 4 1
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4 8 1
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5 26 2
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6 27 1
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7 40 1
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8 71 2
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9 72 1
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8 71 2
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7 40 1
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6 27 1
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5 26 2
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4 8 1
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3 4 1
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2 2 1
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1 1 2
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select
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pk, a,
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count(a) over (ORDER BY a
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@ -1026,15 +1021,15 @@ range between current row
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and 1 following) as cnt
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from t1;
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pk a cnt
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1 1 1
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2 2 2
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3 4 1
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4 8 1
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5 26 1
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6 27 2
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7 40 1
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8 71 1
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9 72 2
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8 71 1
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7 40 1
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6 27 2
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5 26 1
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4 8 1
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3 4 1
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2 2 2
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1 1 1
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insert into t1 select 22, pk, a from t1;
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select
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part_id, pk, a,
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@ -1137,7 +1132,8 @@ pk, a,
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count(b) over (order by a
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range between 2 preceding
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and 2 following) as CNT
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from t1;
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from t1
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order by a, pk;
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pk a CNT
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1 NULL 3
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2 NULL 3
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@ -1969,12 +1965,12 @@ ROW_NUMBER() OVER (order by s1),
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CUME_DIST() OVER (order by -s1)
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from t1;
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s1 s2 ROW_NUMBER() OVER (order by s1) CUME_DIST() OVER (order by -s1)
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-1 2 1.0000000000
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1 a 3 0.8333333333
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NULL NULL 1 0.1666666667
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2 b 4 0.6666666667
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3 NULL 5 0.5000000000
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4 a 6 0.3333333333
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2 b 4 0.6666666667
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-1 2 1.0000000000
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NULL NULL 1 0.1666666667
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drop table t1;
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#
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# MDEV-9925: Wrong result with aggregate function as a window function
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@ -2012,8 +2008,8 @@ o_custkey avg(o_custkey) OVER (PARTITION BY abs(o_custkey)
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ORDER BY o_custkey
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RANGE BETWEEN 15 FOLLOWING
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AND 15 FOLLOWING)
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242 NULL
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238 NULL
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242 NULL
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DROP table orders;
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#
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# MDEV-10842: window functions with the same order column
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@ -2042,20 +2038,20 @@ row_number() over (order by pk desc) as r_desc,
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row_number() over (order by pk asc) as r_asc
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from t1;
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pk r_desc r_asc
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1 11 1
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2 10 2
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3 9 3
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4 8 4
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5 7 5
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6 6 6
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7 5 7
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8 4 8
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9 3 9
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10 2 10
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11 1 11
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10 2 10
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9 3 9
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8 4 8
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7 5 7
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6 6 6
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5 7 5
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4 8 4
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3 9 3
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2 10 2
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1 11 1
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drop table t1;
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#
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# MDEV-10874: two window functions with ccompatible sorting
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# MDEV-10874: two window functions with compatible sorting
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#
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create table t1 (
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pk int primary key,
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@ -2130,17 +2126,17 @@ sum(d) over (order by a
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ROWS BETWEEN 1 preceding and 2 following) as sum_2
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from t1;
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pk a d sum_1 sum_2
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1 0 0.100 0.300 1.400
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2 0 0.200 0.500 1.200
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3 0 0.300 0.300 0.600
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4 1 0.400 0.900 2.600
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5 1 0.500 1.100 2.400
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2 0 0.200 0.500 1.200
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1 0 0.100 0.300 1.400
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6 1 0.600 0.600 1.600
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7 2 0.500 0.500 0.500
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8 2 NULL 0.700 1.200
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9 2 0.700 1.500 2.000
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10 2 0.800 1.700 2.400
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5 1 0.500 1.100 2.400
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4 1 0.400 0.900 2.600
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11 2 0.900 0.900 2.800
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10 2 0.800 1.700 2.400
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9 2 0.700 1.500 2.000
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8 2 NULL 0.700 1.200
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7 2 0.500 0.500 0.500
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drop table t1;
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#
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# MDEV-9941: two window functions with compatible partitions
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@ -2232,9 +2228,9 @@ SELECT sum(t.a) over (partition by t.b order by a),
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sqrt(ifnull((sum(t.a) over (partition by t.b order by a)), 0))
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from t;
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sum(t.a) over (partition by t.b order by a) sqrt(ifnull((sum(t.a) over (partition by t.b order by a)), 0))
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0.0000000000 0
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1.0000000000 1
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3.0000000000 1.7320508075688772
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0.0000000000 0
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drop table t;
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#
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# MDEV-10868: view definitions with window functions
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@ -2391,9 +2387,9 @@ CREATE TABLE t2 (c VARCHAR(8));
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INSERT INTO t2 VALUES ('foo'),('bar'),('foo');
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SELECT COUNT(*) OVER (PARTITION BY c) FROM t2;
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COUNT(*) OVER (PARTITION BY c)
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2
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1
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2
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2
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SELECT * FROM t1 WHERE i IN ( SELECT COUNT(*) OVER (PARTITION BY c) FROM t2 );
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i
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1
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@ -2511,14 +2507,14 @@ select id, rank() over (order by id) from t1;
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id rank() over (order by id)
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1 1
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2 2
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3 4
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2 2
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3 4
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select * from v1;
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id rnk
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1 1
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2 2
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3 4
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2 2
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3 4
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drop view v1;
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drop table t1;
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#
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@ -2879,64 +2875,64 @@ CDEC min(TDEC.CDEC) over ()
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NULL -1
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-1 -1
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0 -1
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1 -1
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0 -1
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1 -1
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10 -1
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select VDEC.CDEC, min(VDEC.CDEC) over () from VDEC;
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CDEC min(VDEC.CDEC) over ()
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NULL -1
|
||||
-1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
10 -1
|
||||
select TDEC.CDEC, max(TDEC.CDEC) over () from TDEC;
|
||||
CDEC max(TDEC.CDEC) over ()
|
||||
NULL 10
|
||||
-1 10
|
||||
0 10
|
||||
1 10
|
||||
0 10
|
||||
1 10
|
||||
10 10
|
||||
select VDEC.CDEC, max(VDEC.CDEC) over () from VDEC;
|
||||
CDEC max(VDEC.CDEC) over ()
|
||||
NULL 10
|
||||
-1 10
|
||||
0 10
|
||||
1 10
|
||||
0 10
|
||||
1 10
|
||||
10 10
|
||||
select TDEC.CDEC, min(distinct TDEC.CDEC) over () from TDEC;
|
||||
CDEC min(distinct TDEC.CDEC) over ()
|
||||
NULL -1
|
||||
-1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
10 -1
|
||||
select VDEC.CDEC, min(distinct VDEC.CDEC) over () from VDEC;
|
||||
CDEC min(distinct VDEC.CDEC) over ()
|
||||
NULL -1
|
||||
-1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
0 -1
|
||||
1 -1
|
||||
10 -1
|
||||
select TDEC.CDEC, max(distinct TDEC.CDEC) over () from TDEC;
|
||||
CDEC max(distinct TDEC.CDEC) over ()
|
||||
NULL 10
|
||||
-1 10
|
||||
0 10
|
||||
1 10
|
||||
0 10
|
||||
1 10
|
||||
10 10
|
||||
select VDEC.CDEC, max(distinct VDEC.CDEC) over () from VDEC;
|
||||
CDEC max(distinct VDEC.CDEC) over ()
|
||||
NULL 10
|
||||
-1 10
|
||||
0 10
|
||||
1 10
|
||||
0 10
|
||||
1 10
|
||||
10 10
|
||||
#
|
||||
# These should be removed once support for them is added.
|
||||
@ -3339,27 +3335,29 @@ SET @save_sql_mode= @@sql_mode;
|
||||
SET sql_mode = 'ONLY_FULL_GROUP_BY';
|
||||
SELECT name, test, score,
|
||||
AVG(score) OVER (PARTITION BY test) AS average_by_test
|
||||
FROM t1;
|
||||
FROM t1
|
||||
ORDER BY test, name;
|
||||
name test score average_by_test
|
||||
Chun SQL 75 65.2500
|
||||
Chun Tuning 73 68.7500
|
||||
Esben SQL 43 65.2500
|
||||
Esben Tuning 31 68.7500
|
||||
Kaolin SQL 56 65.2500
|
||||
Kaolin Tuning 88 68.7500
|
||||
Tatiana SQL 87 65.2500
|
||||
Chun Tuning 73 68.7500
|
||||
Esben Tuning 31 68.7500
|
||||
Kaolin Tuning 88 68.7500
|
||||
Tatiana Tuning 83 68.7500
|
||||
set @@sql_mode= @save_sql_mode;
|
||||
SELECT name, test, score,
|
||||
AVG(score) OVER (PARTITION BY test) AS average_by_test
|
||||
FROM t1;
|
||||
FROM t1
|
||||
ORDER BY test, name;
|
||||
name test score average_by_test
|
||||
Chun SQL 75 65.2500
|
||||
Chun Tuning 73 68.7500
|
||||
Esben SQL 43 65.2500
|
||||
Esben Tuning 31 68.7500
|
||||
Kaolin SQL 56 65.2500
|
||||
Kaolin Tuning 88 68.7500
|
||||
Tatiana SQL 87 65.2500
|
||||
Chun Tuning 73 68.7500
|
||||
Esben Tuning 31 68.7500
|
||||
Kaolin Tuning 88 68.7500
|
||||
Tatiana Tuning 83 68.7500
|
||||
drop table t1;
|
||||
|
||||
@ -68,17 +68,17 @@ first_value(pk) over (order by pk desc),
|
||||
last_value(pk) over (order by pk desc)
|
||||
from t1;
|
||||
pk first_value(pk) over (order by pk desc) last_value(pk) over (order by pk desc)
|
||||
1 11 1
|
||||
2 11 2
|
||||
3 11 3
|
||||
4 11 4
|
||||
5 11 5
|
||||
6 11 6
|
||||
7 11 7
|
||||
8 11 8
|
||||
9 11 9
|
||||
10 11 10
|
||||
11 11 11
|
||||
10 11 10
|
||||
9 11 9
|
||||
8 11 8
|
||||
7 11 7
|
||||
6 11 6
|
||||
5 11 5
|
||||
4 11 4
|
||||
3 11 3
|
||||
2 11 2
|
||||
1 11 1
|
||||
select pk, a, b, c, d, e,
|
||||
first_value(b) over (partition by a order by pk) as fst_b,
|
||||
last_value(b) over (partition by a order by pk) as lst_b,
|
||||
|
||||
@ -14,49 +14,49 @@ insert into t1 values
|
||||
( 7 , 2, 20),
|
||||
( 9 , 4, 20),
|
||||
(10 , 4, 20);
|
||||
select pk, a, b,
|
||||
select a,
|
||||
percent_rank() over (order by a),
|
||||
cume_dist() over (order by a)
|
||||
from t1;
|
||||
pk a b percent_rank() over (order by a) cume_dist() over (order by a)
|
||||
1 0 10 0.0000000000 0.2000000000
|
||||
2 0 10 0.0000000000 0.2000000000
|
||||
3 1 10 0.2222222222 0.4000000000
|
||||
4 1 10 0.2222222222 0.4000000000
|
||||
8 2 10 0.4444444444 0.8000000000
|
||||
5 2 20 0.4444444444 0.8000000000
|
||||
6 2 20 0.4444444444 0.8000000000
|
||||
7 2 20 0.4444444444 0.8000000000
|
||||
9 4 20 0.8888888889 1.0000000000
|
||||
10 4 20 0.8888888889 1.0000000000
|
||||
select pk, a, b,
|
||||
a percent_rank() over (order by a) cume_dist() over (order by a)
|
||||
0 0.0000000000 0.2000000000
|
||||
0 0.0000000000 0.2000000000
|
||||
1 0.2222222222 0.4000000000
|
||||
1 0.2222222222 0.4000000000
|
||||
2 0.4444444444 0.8000000000
|
||||
2 0.4444444444 0.8000000000
|
||||
2 0.4444444444 0.8000000000
|
||||
2 0.4444444444 0.8000000000
|
||||
4 0.8888888889 1.0000000000
|
||||
4 0.8888888889 1.0000000000
|
||||
select pk,
|
||||
percent_rank() over (order by pk),
|
||||
cume_dist() over (order by pk)
|
||||
from t1 order by pk;
|
||||
pk a b percent_rank() over (order by pk) cume_dist() over (order by pk)
|
||||
1 0 10 0.0000000000 0.1000000000
|
||||
2 0 10 0.1111111111 0.2000000000
|
||||
3 1 10 0.2222222222 0.3000000000
|
||||
4 1 10 0.3333333333 0.4000000000
|
||||
5 2 20 0.4444444444 0.5000000000
|
||||
6 2 20 0.5555555556 0.6000000000
|
||||
7 2 20 0.6666666667 0.7000000000
|
||||
8 2 10 0.7777777778 0.8000000000
|
||||
9 4 20 0.8888888889 0.9000000000
|
||||
10 4 20 1.0000000000 1.0000000000
|
||||
select pk, a, b,
|
||||
pk percent_rank() over (order by pk) cume_dist() over (order by pk)
|
||||
1 0.0000000000 0.1000000000
|
||||
2 0.1111111111 0.2000000000
|
||||
3 0.2222222222 0.3000000000
|
||||
4 0.3333333333 0.4000000000
|
||||
5 0.4444444444 0.5000000000
|
||||
6 0.5555555556 0.6000000000
|
||||
7 0.6666666667 0.7000000000
|
||||
8 0.7777777778 0.8000000000
|
||||
9 0.8888888889 0.9000000000
|
||||
10 1.0000000000 1.0000000000
|
||||
select a,
|
||||
percent_rank() over (partition by a order by a),
|
||||
cume_dist() over (partition by a order by a)
|
||||
from t1;
|
||||
pk a b percent_rank() over (partition by a order by a) cume_dist() over (partition by a order by a)
|
||||
1 0 10 0.0000000000 1.0000000000
|
||||
2 0 10 0.0000000000 1.0000000000
|
||||
3 1 10 0.0000000000 1.0000000000
|
||||
4 1 10 0.0000000000 1.0000000000
|
||||
8 2 10 0.0000000000 1.0000000000
|
||||
5 2 20 0.0000000000 1.0000000000
|
||||
6 2 20 0.0000000000 1.0000000000
|
||||
7 2 20 0.0000000000 1.0000000000
|
||||
9 4 20 0.0000000000 1.0000000000
|
||||
10 4 20 0.0000000000 1.0000000000
|
||||
a percent_rank() over (partition by a order by a) cume_dist() over (partition by a order by a)
|
||||
0 0.0000000000 1.0000000000
|
||||
0 0.0000000000 1.0000000000
|
||||
1 0.0000000000 1.0000000000
|
||||
1 0.0000000000 1.0000000000
|
||||
2 0.0000000000 1.0000000000
|
||||
2 0.0000000000 1.0000000000
|
||||
2 0.0000000000 1.0000000000
|
||||
2 0.0000000000 1.0000000000
|
||||
4 0.0000000000 1.0000000000
|
||||
4 0.0000000000 1.0000000000
|
||||
drop table t1;
|
||||
|
||||
@ -17,34 +17,34 @@ insert into t1 values
|
||||
( 7 , 2, 20),
|
||||
( 9 , 4, 20),
|
||||
(10 , 4, 20);
|
||||
select pk, a, b, rank() over (order by a) as rank,
|
||||
select a, rank() over (order by a) as rank,
|
||||
dense_rank() over (order by a) as dense_rank
|
||||
from t1;
|
||||
pk a b rank dense_rank
|
||||
1 0 10 1 1
|
||||
2 0 10 1 1
|
||||
3 1 10 3 2
|
||||
4 1 10 3 2
|
||||
8 2 10 5 3
|
||||
5 2 20 5 3
|
||||
6 2 20 5 3
|
||||
7 2 20 5 3
|
||||
9 4 20 9 4
|
||||
10 4 20 9 4
|
||||
select pk, a, b, rank() over (partition by b order by a) as rank,
|
||||
a rank dense_rank
|
||||
0 1 1
|
||||
0 1 1
|
||||
1 3 2
|
||||
1 3 2
|
||||
2 5 3
|
||||
2 5 3
|
||||
2 5 3
|
||||
2 5 3
|
||||
4 9 4
|
||||
4 9 4
|
||||
select a, b, rank() over (partition by b order by a) as rank,
|
||||
dense_rank() over (partition by b order by a) as dense_rank
|
||||
from t1;
|
||||
pk a b rank dense_rank
|
||||
1 0 10 1 1
|
||||
2 0 10 1 1
|
||||
3 1 10 3 2
|
||||
4 1 10 3 2
|
||||
8 2 10 5 3
|
||||
5 2 20 1 1
|
||||
6 2 20 1 1
|
||||
7 2 20 1 1
|
||||
9 4 20 4 2
|
||||
10 4 20 4 2
|
||||
a b rank dense_rank
|
||||
0 10 1 1
|
||||
0 10 1 1
|
||||
1 10 3 2
|
||||
1 10 3 2
|
||||
2 10 5 3
|
||||
2 20 1 1
|
||||
2 20 1 1
|
||||
2 20 1 1
|
||||
4 20 4 2
|
||||
4 20 4 2
|
||||
drop table t1;
|
||||
#
|
||||
# Test with null values in the table.
|
||||
@ -59,46 +59,49 @@ insert into t2 values (2,'b');
|
||||
insert into t2 values (-1,'');
|
||||
select *, rank() over (order by s1) as rank,
|
||||
dense_rank() over (order by s1) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s1, s2;
|
||||
s1 s2 rank dense_rank
|
||||
1 a 5 3
|
||||
NULL NULL 1 1
|
||||
1 NULL 5 3
|
||||
NULL a 1 1
|
||||
NULL c 1 1
|
||||
2 b 7 4
|
||||
-1 4 2
|
||||
1 NULL 5 3
|
||||
1 a 5 3
|
||||
2 b 7 4
|
||||
select *, rank() over (partition by s2 order by s1) as rank,
|
||||
dense_rank() over (partition by s2 order by s1) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s1, s2;
|
||||
s1 s2 rank dense_rank
|
||||
1 a 2 2
|
||||
NULL NULL 1 1
|
||||
1 NULL 2 2
|
||||
NULL a 1 1
|
||||
NULL c 1 1
|
||||
2 b 1 1
|
||||
-1 1 1
|
||||
1 NULL 2 2
|
||||
1 a 2 2
|
||||
2 b 1 1
|
||||
select *, rank() over (order by s2) as rank,
|
||||
dense_rank() over (order by s2) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s2, s1;
|
||||
s1 s2 rank dense_rank
|
||||
1 a 4 3
|
||||
NULL NULL 1 1
|
||||
1 NULL 1 1
|
||||
NULL a 4 3
|
||||
NULL c 7 5
|
||||
2 b 6 4
|
||||
-1 3 2
|
||||
NULL a 4 3
|
||||
1 a 4 3
|
||||
2 b 6 4
|
||||
NULL c 7 5
|
||||
select *, rank() over (partition by s1 order by s2) as rank,
|
||||
dense_rank() over (partition by s1 order by s2) as dense_rank
|
||||
from t2;
|
||||
s1 s2 rank dense_rank
|
||||
1 a 2 2
|
||||
NULL NULL 1 1
|
||||
1 NULL 1 1
|
||||
NULL a 2 2
|
||||
NULL c 3 3
|
||||
2 b 1 1
|
||||
-1 1 1
|
||||
1 NULL 1 1
|
||||
1 a 2 2
|
||||
2 b 1 1
|
||||
drop table t2;
|
||||
|
||||
@ -58,7 +58,8 @@ select
|
||||
pk, a, b,
|
||||
row_number() over (order by a),
|
||||
row_number() over (order by b)
|
||||
from t1;
|
||||
from t1
|
||||
order by b;
|
||||
|
||||
drop table t1;
|
||||
|
||||
@ -391,7 +392,6 @@ insert into t3 values
|
||||
(6, 2);
|
||||
|
||||
select
|
||||
pk,
|
||||
val,
|
||||
count(val) over (order by val
|
||||
range between current row and
|
||||
@ -404,7 +404,6 @@ insert into t3 values
|
||||
(8, 3);
|
||||
|
||||
select
|
||||
pk,
|
||||
val,
|
||||
count(val) over (order by val
|
||||
range between current row and
|
||||
@ -444,7 +443,6 @@ insert into t4 values
|
||||
|
||||
select
|
||||
part_id,
|
||||
pk,
|
||||
val,
|
||||
count(val) over (partition by part_id
|
||||
order by val
|
||||
@ -458,7 +456,6 @@ from t4;
|
||||
--echo #
|
||||
select
|
||||
part_id,
|
||||
pk,
|
||||
val,
|
||||
count(val) over (partition by part_id
|
||||
order by val
|
||||
@ -469,7 +466,6 @@ from t4;
|
||||
|
||||
select
|
||||
part_id,
|
||||
pk,
|
||||
val,
|
||||
count(val) over (partition by part_id
|
||||
order by val
|
||||
@ -480,7 +476,6 @@ from t4;
|
||||
|
||||
select
|
||||
part_id,
|
||||
pk,
|
||||
val,
|
||||
count(val) over (partition by part_id
|
||||
order by val
|
||||
@ -723,7 +718,8 @@ select
|
||||
count(b) over (order by a
|
||||
range between 2 preceding
|
||||
and 2 following) as CNT
|
||||
from t1;
|
||||
from t1
|
||||
order by a, pk;
|
||||
drop table t1;
|
||||
|
||||
--echo #
|
||||
@ -1023,6 +1019,7 @@ insert into t1 values
|
||||
|
||||
--echo # Check using counters
|
||||
flush status;
|
||||
--sorted_result
|
||||
select
|
||||
rank() over (partition by c order by a),
|
||||
rank() over (partition by c order by b)
|
||||
@ -1030,6 +1027,7 @@ from t1;
|
||||
show status like '%sort%';
|
||||
|
||||
flush status;
|
||||
--sorted_result
|
||||
select
|
||||
rank() over (partition by c order by a),
|
||||
rank() over (partition by c order by a)
|
||||
@ -1101,6 +1099,7 @@ insert into t1 values
|
||||
(2,2),
|
||||
(3,1);
|
||||
|
||||
--sorted_result
|
||||
select
|
||||
a, b,
|
||||
rank() over (order by a), rank() over (order by b),
|
||||
@ -1192,6 +1191,7 @@ insert into t1 values (4,'a');
|
||||
insert into t1 values (2,'b');
|
||||
insert into t1 values (-1,'');
|
||||
|
||||
--sorted_result
|
||||
select
|
||||
*,
|
||||
ROW_NUMBER() OVER (order by s1),
|
||||
@ -1267,7 +1267,7 @@ from t1;
|
||||
drop table t1;
|
||||
|
||||
--echo #
|
||||
--echo # MDEV-10874: two window functions with ccompatible sorting
|
||||
--echo # MDEV-10874: two window functions with compatible sorting
|
||||
--echo #
|
||||
|
||||
create table t1 (
|
||||
@ -2110,10 +2110,12 @@ SET sql_mode = 'ONLY_FULL_GROUP_BY';
|
||||
|
||||
SELECT name, test, score,
|
||||
AVG(score) OVER (PARTITION BY test) AS average_by_test
|
||||
FROM t1;
|
||||
FROM t1
|
||||
ORDER BY test, name;
|
||||
|
||||
set @@sql_mode= @save_sql_mode;
|
||||
SELECT name, test, score,
|
||||
AVG(score) OVER (PARTITION BY test) AS average_by_test
|
||||
FROM t1;
|
||||
FROM t1
|
||||
ORDER BY test, name;
|
||||
drop table t1;
|
||||
|
||||
@ -17,17 +17,17 @@ insert into t1 values
|
||||
( 9 , 4, 20),
|
||||
(10 , 4, 20);
|
||||
|
||||
select pk, a, b,
|
||||
select a,
|
||||
percent_rank() over (order by a),
|
||||
cume_dist() over (order by a)
|
||||
from t1;
|
||||
|
||||
select pk, a, b,
|
||||
select pk,
|
||||
percent_rank() over (order by pk),
|
||||
cume_dist() over (order by pk)
|
||||
from t1 order by pk;
|
||||
|
||||
select pk, a, b,
|
||||
select a,
|
||||
percent_rank() over (partition by a order by a),
|
||||
cume_dist() over (partition by a order by a)
|
||||
from t1;
|
||||
|
||||
@ -20,11 +20,11 @@ insert into t1 values
|
||||
( 9 , 4, 20),
|
||||
(10 , 4, 20);
|
||||
|
||||
select pk, a, b, rank() over (order by a) as rank,
|
||||
dense_rank() over (order by a) as dense_rank
|
||||
select a, rank() over (order by a) as rank,
|
||||
dense_rank() over (order by a) as dense_rank
|
||||
from t1;
|
||||
select pk, a, b, rank() over (partition by b order by a) as rank,
|
||||
dense_rank() over (partition by b order by a) as dense_rank
|
||||
select a, b, rank() over (partition by b order by a) as rank,
|
||||
dense_rank() over (partition by b order by a) as dense_rank
|
||||
from t1;
|
||||
|
||||
drop table t1;
|
||||
@ -44,13 +44,16 @@ insert into t2 values (-1,'');
|
||||
|
||||
select *, rank() over (order by s1) as rank,
|
||||
dense_rank() over (order by s1) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s1, s2;
|
||||
select *, rank() over (partition by s2 order by s1) as rank,
|
||||
dense_rank() over (partition by s2 order by s1) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s1, s2;
|
||||
select *, rank() over (order by s2) as rank,
|
||||
dense_rank() over (order by s2) as dense_rank
|
||||
from t2;
|
||||
from t2
|
||||
order by s2, s1;
|
||||
select *, rank() over (partition by s1 order by s2) as rank,
|
||||
dense_rank() over (partition by s1 order by s2) as dense_rank
|
||||
from t2;
|
||||
|
||||
@ -80,9 +80,11 @@ select std(b) over (order by a rows between current row and 0 following)
|
||||
from t2;
|
||||
|
||||
--echo # Only peers frame.
|
||||
--sorted_result
|
||||
select a, b, std(b) over (order by a range between 0 preceding and 0 preceding)
|
||||
from t2;
|
||||
|
||||
--sorted_result
|
||||
select a, b, std(b) over (order by a range between 0 preceding and current row)
|
||||
from t2;
|
||||
|
||||
@ -90,9 +92,11 @@ from t2;
|
||||
select a, b, std(b) over (order by a range between current row and 0 preceding)
|
||||
from t2;
|
||||
|
||||
--sorted_result
|
||||
select a, b, std(b) over (order by a range between current row and 0 following)
|
||||
from t2;
|
||||
|
||||
--sorted_result
|
||||
select a, b, std(b) over (order by a range between 0 following and 0 following)
|
||||
from t2;
|
||||
|
||||
|
||||
@ -353,6 +353,15 @@ int init_slave_io_cache(IO_CACHE *master, IO_CACHE *slave)
|
||||
|
||||
void end_slave_io_cache(IO_CACHE *cache)
|
||||
{
|
||||
/* Remove the cache from the next_file_user circular linked list. */
|
||||
if (cache->next_file_user != cache)
|
||||
{
|
||||
IO_CACHE *p= cache->next_file_user;
|
||||
while (p->next_file_user != cache)
|
||||
p= p->next_file_user;
|
||||
p->next_file_user= cache->next_file_user;
|
||||
|
||||
}
|
||||
my_free(cache->buffer);
|
||||
}
|
||||
|
||||
|
||||
@ -26649,9 +26649,10 @@ AGGR_OP::end_send()
|
||||
|
||||
// Update ref array
|
||||
join_tab->join->set_items_ref_array(*join_tab->ref_array);
|
||||
bool keep_last_filesort_result = join_tab->filesort ? false : true;
|
||||
if (join_tab->window_funcs_step)
|
||||
{
|
||||
if (join_tab->window_funcs_step->exec(join))
|
||||
if (join_tab->window_funcs_step->exec(join, keep_last_filesort_result))
|
||||
return NESTED_LOOP_ERROR;
|
||||
}
|
||||
|
||||
@ -26705,6 +26706,12 @@ AGGR_OP::end_send()
|
||||
}
|
||||
}
|
||||
|
||||
if (keep_last_filesort_result)
|
||||
{
|
||||
delete join_tab->filesort_result;
|
||||
join_tab->filesort_result= NULL;
|
||||
}
|
||||
|
||||
// Finish rnd scn after sending records
|
||||
if (join_tab->table->file->inited)
|
||||
join_tab->table->file->ha_rnd_end();
|
||||
|
||||
@ -2751,7 +2751,7 @@ bool Window_func_runner::exec(THD *thd, TABLE *tbl, SORT_INFO *filesort_result)
|
||||
}
|
||||
|
||||
|
||||
bool Window_funcs_sort::exec(JOIN *join)
|
||||
bool Window_funcs_sort::exec(JOIN *join, bool keep_filesort_result)
|
||||
{
|
||||
THD *thd= join->thd;
|
||||
JOIN_TAB *join_tab= join->join_tab + join->total_join_tab_cnt();
|
||||
@ -2766,8 +2766,11 @@ bool Window_funcs_sort::exec(JOIN *join)
|
||||
|
||||
bool is_error= runner.exec(thd, tbl, filesort_result);
|
||||
|
||||
delete join_tab->filesort_result;
|
||||
join_tab->filesort_result= NULL;
|
||||
if (!keep_filesort_result)
|
||||
{
|
||||
delete join_tab->filesort_result;
|
||||
join_tab->filesort_result= NULL;
|
||||
}
|
||||
return is_error;
|
||||
}
|
||||
|
||||
@ -2876,14 +2879,18 @@ bool Window_funcs_computation::setup(THD *thd,
|
||||
}
|
||||
|
||||
|
||||
bool Window_funcs_computation::exec(JOIN *join)
|
||||
bool Window_funcs_computation::exec(JOIN *join, bool keep_last_filesort_result)
|
||||
{
|
||||
List_iterator<Window_funcs_sort> it(win_func_sorts);
|
||||
Window_funcs_sort *srt;
|
||||
uint counter= 0; /* Count how many sorts we've executed. */
|
||||
/* Execute each sort */
|
||||
while ((srt = it++))
|
||||
{
|
||||
if (srt->exec(join))
|
||||
counter++;
|
||||
bool keep_filesort_result= keep_last_filesort_result &&
|
||||
counter == win_func_sorts.elements;
|
||||
if (srt->exec(join, keep_filesort_result))
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
|
||||
@ -195,7 +195,7 @@ class Window_funcs_sort : public Sql_alloc
|
||||
public:
|
||||
bool setup(THD *thd, SQL_SELECT *sel, List_iterator<Item_window_func> &it,
|
||||
st_join_table *join_tab);
|
||||
bool exec(JOIN *join);
|
||||
bool exec(JOIN *join, bool keep_filesort_result);
|
||||
void cleanup() { delete filesort; }
|
||||
|
||||
friend class Window_funcs_computation;
|
||||
@ -225,7 +225,7 @@ class Window_funcs_computation : public Sql_alloc
|
||||
List<Window_funcs_sort> win_func_sorts;
|
||||
public:
|
||||
bool setup(THD *thd, List<Item_window_func> *window_funcs, st_join_table *tab);
|
||||
bool exec(JOIN *join);
|
||||
bool exec(JOIN *join, bool keep_last_filesort_result);
|
||||
|
||||
Explain_aggr_window_funcs *save_explain_plan(MEM_ROOT *mem_root, bool is_analyze);
|
||||
void cleanup();
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user