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8481c70ede
If a window function with aggregation is over the result set of a grouping query then the argument of the aggregate function from the window function is allowed to be an aggregate function itself.
1494 lines
33 KiB
Text
1494 lines
33 KiB
Text
#
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# Window Functions Tests
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#
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--disable_warnings
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drop table if exists t1,t2;
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drop view if exists v1;
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--enable_warnings
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--echo # ########################################################################
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--echo # # Parser tests
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--echo # ########################################################################
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--echo #
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--echo # Check what happens when one attempts to use window function without OVER clause
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create table t1 (a int, b int);
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insert into t1 values (1,1),(2,2);
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--error ER_PARSE_ERROR
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select row_number() from t1;
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--error ER_PARSE_ERROR
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select rank() from t1;
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--echo # Attempt to use window function in the WHERE clause
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select * from t1 where 1=rank() over (order by a);
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select * from t1 where 1>row_number() over (partition by b order by a);
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drop table t1;
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--echo # ########################################################################
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--echo # # Functionality tests
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--echo # ########################################################################
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--echo #
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--echo # Check if ROW_NUMBER() works in basic cases
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create table t1(a int, b int, x char(32));
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insert into t1 values (2, 10, 'xx');
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insert into t1 values (2, 10, 'zz');
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insert into t1 values (2, 20, 'yy');
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insert into t1 values (3, 10, 'xxx');
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insert into t1 values (3, 20, 'vvv');
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--sorted_result
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select a, row_number() over (partition by a order by b) from t1;
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select a, b, x, row_number() over (partition by a order by x) from t1;
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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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(1, 10, 22),
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(2, 11, 21),
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(3, 12, 20),
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(4, 13, 19),
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(5, 14, 18);
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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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drop table t1;
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--echo #
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--echo # Try RANK() function
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--echo #
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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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);
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insert into t2 values
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( 1 , 0),
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( 2 , 0),
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( 3 , 1),
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( 4 , 1),
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( 8 , 2),
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( 5 , 2),
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( 6 , 2),
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( 7 , 2),
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( 9 , 4),
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(10 , 4);
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--sorted_result
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select pk, a, rank() over (order by a) from t2;
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--sorted_result
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select pk, a, rank() over (order by a desc) from t2;
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drop table t2;
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--echo #
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--echo # Try Aggregates as window functions. With frames.
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--echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (pk int, c int);
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insert into t1 select a+1,1 from t0;
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update t1 set c=2 where pk not in (1,2,3,4);
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select * from t1;
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select
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pk, c,
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count(*) over (partition by c order by pk
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rows between 2 preceding and 2 following) as CNT
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from t1;
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select
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pk, c,
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count(*) over (partition by c order by pk
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rows between 1 preceding and 2 following) as CNT
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from t1;
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select
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pk, c,
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count(*) over (partition by c order by pk
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rows between 2 preceding and current row) as CNT
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from t1;
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select
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pk,c,
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count(*) over (partition by c order by pk rows
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between 1 following and 2 following) as CNT
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from t1;
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select
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pk,c,
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count(*) over (partition by c order by pk rows
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between 2 preceding and 1 preceding) as CNT
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from t1;
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select
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pk, c,
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count(*) over (partition by c order by pk
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rows between current row and 1 following) as CNT
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from t1;
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--echo # Check ORDER BY DESC
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select
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pk, c,
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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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drop table t0,t1;
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--echo #
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--echo # Resolution of window names
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--echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (pk int, c int);
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insert into t1 select a+1,1 from t0;
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update t1 set c=2 where pk not in (1,2,3,4);
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select * from t1;
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select
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pk, c,
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count(*) over w1 as CNT
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from t1
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window w1 as (partition by c order by pk
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rows between 2 preceding and 2 following);
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select
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pk, c,
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count(*) over (w1 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c order by pk);
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select
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pk, c,
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count(*) over (w1 order by pk rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c);
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select
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pk, c,
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count(*) over (w2 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c), w2 as (w1 order by pk);
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select
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pk, c,
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count(*) over w3 as CNT
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from t1
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window
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w1 as (partition by c),
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w2 as (w1 order by pk),
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w3 as (w2 rows between 2 preceding and 2 following);
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--error ER_WRONG_WINDOW_SPEC_NAME
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select
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pk, c,
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count(*) over w as CNT
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from t1
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window w1 as (partition by c order by pk
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rows between 2 preceding and 2 following);
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--error ER_DUP_WINDOW_NAME
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select
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pk, c,
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count(*) over (w2 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c), w1 as (order by pk);
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--error ER_WRONG_WINDOW_SPEC_NAME
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select
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pk, c,
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count(*) over (w2 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c), w2 as (w partition by c order by pk);
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--error ER_PARTITION_LIST_IN_REFERENCING_WINDOW_SPEC
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select
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pk, c,
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count(*) over (w2 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c), w2 as (w1 partition by c order by pk);
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--error ER_ORDER_LIST_IN_REFERENCING_WINDOW_SPEC
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select
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pk, c,
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count(*) over (w2 rows between 2 preceding and 2 following) as CNT
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from t1
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window w1 as (partition by c order by pk), w2 as (w1 order by pk);
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--error ER_WINDOW_FRAME_IN_REFERENCED_WINDOW_SPEC
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select
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pk, c,
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count(*) over w3 as CNT
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from t1
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window
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w1 as (partition by c),
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w2 as (w1 order by pk rows between 3 preceding and 2 following),
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w3 as (w2 rows between 2 preceding and 2 following);
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--error ER_BAD_COMBINATION_OF_WINDOW_FRAME_BOUND_SPECS
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select
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pk, c,
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count(*) over w1 as CNT
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from t1
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window w1 as (partition by c order by pk
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rows between unbounded following and 2 following);
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--error ER_BAD_COMBINATION_OF_WINDOW_FRAME_BOUND_SPECS
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select
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pk, c,
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count(*) over (w1 rows between 2 preceding and unbounded preceding) as CNT
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from t1
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window w1 as (partition by c order by pk);
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--error ER_BAD_COMBINATION_OF_WINDOW_FRAME_BOUND_SPECS
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select
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pk, c,
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count(*) over (w1 order by pk rows between current row and 2 preceding) as CNT
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from t1
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window w1 as (partition by c);
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--error ER_BAD_COMBINATION_OF_WINDOW_FRAME_BOUND_SPECS
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select
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pk, c,
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count(*) over (w2 rows between 2 following and current row) as CNT
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from t1
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window w1 as (partition by c), w2 as (w1 order by pk);
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select
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pk, c
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from t1 where rank() over w1 > 2
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window w1 as (partition by c order by pk);
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select
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c, max(pk) as m
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from t1
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group by c + rank() over w1
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window w1 as (order by m);
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select
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c, max(pk) as m, rank() over w1 as r
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from t1
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group by c+r
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window w1 as (order by m);
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--error ER_WRONG_PLACEMENT_OF_WINDOW_FUNCTION
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select
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c, max(pk) as m, rank() over w1 as r
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from t1
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group by c having c+r > 3
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window w1 as (order by m);
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--error ER_WINDOW_FUNCTION_IN_WINDOW_SPEC
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select
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c, max(pk) as m, rank() over w1 as r,
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rank() over (partition by r+1 order by m)
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from t1
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group by c
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window w1 as (order by m);
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--error ER_WINDOW_FUNCTION_IN_WINDOW_SPEC
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select
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c, max(pk) as m, rank() over w1 as r,
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rank() over (partition by m order by r)
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from t1
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group by c
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window w1 as (order by m);
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--error ER_WINDOW_FUNCTION_IN_WINDOW_SPEC
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select
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c, max(pk) as m, rank() over w1 as r, dense_rank() over w2 as dr
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from t1
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group by c
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window w1 as (order by m), w2 as (partition by r order by m);
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--error ER_NOT_ALLOWED_WINDOW_FRAME
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select
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pk, c,
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row_number() over (partition by c order by pk
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range between unbounded preceding and current row) as r
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from t1;
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--error ER_NOT_ALLOWED_WINDOW_FRAME
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select
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pk, c,
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rank() over w1 as r
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from t1
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window w1 as (partition by c order by pk
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rows between 2 preceding and 2 following);
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--error ER_NOT_ALLOWED_WINDOW_FRAME
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select
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pk, c,
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dense_rank() over (partition by c order by pk
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rows between 1 preceding and 1 following) as r
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from t1;
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--error ER_NO_ORDER_LIST_IN_WINDOW_SPEC
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select
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pk, c,
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rank() over w1 as r
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from t1
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window w1 as (partition by c);
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--error ER_NO_ORDER_LIST_IN_WINDOW_SPEC
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select
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pk, c,
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dense_rank() over (partition by c) as r
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from t1;
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drop table t0,t1;
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--echo #
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--echo # MDEV-9634: Window function produces incorrect value
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--echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t2 (part_id int, pk int, a int);
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insert into t2 select
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if(a<5, 0, 1), a, if(a<5, NULL, 1) from t0;
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select * from t2;
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select
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part_id, pk, a,
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count(a) over (partition by part_id order by pk
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rows between 1 preceding and 1 following) as CNT
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from t2;
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drop table t0, t2;
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--echo #
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--echo # RANGE-type bounds
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--echo #
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create table t3 (
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pk int,
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val int
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);
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insert into t3 values
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(0, 1),
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(1, 1),
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(2, 1),
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(3, 2),
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(4, 2),
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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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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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drop table t3;
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--echo # Now, check with PARTITION BY
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create table t4 (
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part_id int,
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pk int,
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val int
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);
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insert into t4 values
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(1234, 100, 1),
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(1234, 101, 1),
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(1234, 102, 1),
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(1234, 103, 2),
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(1234, 104, 2),
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(1234, 105, 2),
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(1234, 106, 2),
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(1234, 107, 3),
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(1234, 108, 3),
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(5678, 200, 1),
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(5678, 201, 1),
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(5678, 202, 1),
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(5678, 203, 2),
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(5678, 204, 2),
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(5678, 205, 2),
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(5678, 206, 2),
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(5678, 207, 3),
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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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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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--echo #
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--echo # Try RANGE UNBOUNDED PRECEDING | FOLLOWING
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--echo #
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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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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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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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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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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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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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drop table t4;
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--echo #
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--echo # MDEV-9695: Wrong window frame when using RANGE BETWEEN N FOLLOWING AND PRECEDING
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--echo #
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create table t1 (pk int, a int, b int);
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insert into t1 values
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( 1 , 0, 1),
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( 2 , 0, 2),
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( 3 , 1, 4),
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( 4 , 1, 8),
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( 5 , 2, 32),
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( 6 , 2, 64),
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( 7 , 2, 128),
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( 8 , 2, 16);
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) as bit_or
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from t1;
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--echo # Extra ROWS n PRECEDING tests
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING) as bit_or
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from t1;
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drop table t1;
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|
|
|
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create table t2 (
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pk int,
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a int,
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b int
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);
|
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insert into t2 values
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( 1, 0, 1),
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( 2, 0, 2),
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( 3, 0, 4),
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( 4, 0, 8),
|
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( 5, 1, 16),
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( 6, 1, 32),
|
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( 7, 1, 64),
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( 8, 1, 128),
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( 9, 2, 256),
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(10, 2, 512),
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(11, 2, 1024),
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(12, 2, 2048);
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN 1 PRECEDING AND 1 PRECEDING) as bit_or
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from t2;
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN 2 PRECEDING AND 2 PRECEDING) as bit_or
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from t2;
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING) as bit_or
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from t2;
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|
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--echo # Check CURRENT ROW
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select pk, a, b,
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bit_or(b) over (partition by a order by pk ROWS BETWEEN CURRENT ROW AND CURRENT ROW) as bit_or
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from t2;
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drop table t2;
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|
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--echo #
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--echo # Try RANGE PRECEDING|FOLLWING n
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--echo #
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create table t1 (
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part_id int,
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pk int,
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a int
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);
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|
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insert into t1 values
|
|
(10, 1, 1),
|
|
(10, 2, 2),
|
|
(10, 3, 4),
|
|
(10, 4, 8),
|
|
(10, 5,26),
|
|
(10, 6,27),
|
|
(10, 7,40),
|
|
(10, 8,71),
|
|
(10, 9,72);
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 10 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a DESC
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 10 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 1 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 10 PRECEDING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a DESC
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 10 PRECEDING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 1 PRECEDING) as cnt
|
|
from t1;
|
|
|
|
# Try bottom bound
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN 1 PRECEDING
|
|
AND CURRENT ROW) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a DESC
|
|
RANGE BETWEEN 1 PRECEDING
|
|
AND CURRENT ROW) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN 1 FOLLOWING
|
|
AND 3 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
--echo # Try CURRENT ROW with[out] DESC
|
|
select
|
|
pk, a,
|
|
count(a) over (ORDER BY a
|
|
RANGE BETWEEN CURRENT ROW
|
|
AND 1 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (order by a desc
|
|
range between current row
|
|
and 1 following) as cnt
|
|
from t1;
|
|
|
|
|
|
# Try with partitions
|
|
insert into t1 select 22, pk, a from t1;
|
|
select
|
|
part_id, pk, a,
|
|
count(a) over (PARTITION BY part_id
|
|
ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 10 FOLLOWING) as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
count(a) over (PARTITION BY part_id
|
|
ORDER BY a
|
|
RANGE BETWEEN UNBOUNDED PRECEDING
|
|
AND 1 PRECEDING) as cnt
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo # Try a RANGE frame over non-integer datatype:
|
|
|
|
create table t1 (
|
|
col1 int,
|
|
a decimal(5,3)
|
|
);
|
|
|
|
insert into t1 values (1, 0.45);
|
|
insert into t1 values (1, 0.5);
|
|
insert into t1 values (1, 0.55);
|
|
insert into t1 values (1, 1.21);
|
|
insert into t1 values (1, 1.22);
|
|
insert into t1 values (1, 3.33);
|
|
|
|
select
|
|
a,
|
|
count(col1) over (order by a
|
|
range between 0.1 preceding
|
|
and 0.1 following)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # RANGE-type frames and NULL values
|
|
--echo #
|
|
create table t1 (
|
|
pk int,
|
|
a int,
|
|
b int
|
|
);
|
|
|
|
insert into t1 values (1, NULL,1);
|
|
insert into t1 values (2, NULL,1);
|
|
insert into t1 values (3, NULL,1);
|
|
insert into t1 values (4, 10 ,1);
|
|
insert into t1 values (5, 11 ,1);
|
|
insert into t1 values (6, 12 ,1);
|
|
insert into t1 values (7, 13 ,1);
|
|
insert into t1 values (8, 14 ,1);
|
|
|
|
|
|
select
|
|
pk, a,
|
|
count(b) over (order by a
|
|
range between 2 preceding
|
|
and 2 following) as CNT
|
|
from t1;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Try ranges that have bound1 > bound2. The standard actually allows them
|
|
--echo #
|
|
|
|
create table t0 (a int);
|
|
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
|
|
create table t1 (pk int, c int);
|
|
insert into t1 select a+1,1 from t0;
|
|
update t1 set c=2 where pk not in (1,2,3,4);
|
|
select * from t1;
|
|
|
|
select
|
|
pk, c,
|
|
count(*) over (partition by c
|
|
order by pk
|
|
rows between 1 preceding
|
|
and 2 preceding)
|
|
as cnt
|
|
from t1;
|
|
|
|
select
|
|
pk, c,
|
|
sum(c) over (partition by c
|
|
order by pk
|
|
rows between 1 preceding
|
|
and 2 preceding)
|
|
as sum
|
|
from t1;
|
|
|
|
select
|
|
pk, c,
|
|
sum(c) over (partition by c
|
|
order by pk
|
|
rows between 2 following
|
|
and 1 following)
|
|
as sum
|
|
from t1;
|
|
|
|
|
|
select
|
|
pk, c,
|
|
count(*) over (partition by c
|
|
order by pk
|
|
range between 1 preceding
|
|
and 2 preceding)
|
|
as cnt
|
|
from t1;
|
|
drop table t0, t1;
|
|
|
|
--echo #
|
|
--echo # Error checking for frame bounds
|
|
--echo #
|
|
|
|
create table t1 (a int, b int, c varchar(32));
|
|
insert into t1 values (1,1,'foo');
|
|
insert into t1 values (2,2,'bar');
|
|
--error ER_RANGE_FRAME_NEEDS_SIMPLE_ORDERBY
|
|
select
|
|
count(*) over (order by a,b
|
|
range between unbounded preceding and current row)
|
|
from t1;
|
|
|
|
--error ER_WRONG_TYPE_FOR_RANGE_FRAME
|
|
select
|
|
count(*) over (order by c
|
|
range between unbounded preceding and current row)
|
|
from t1;
|
|
|
|
--error ER_WRONG_TYPE_FOR_RANGE_FRAME
|
|
select
|
|
count(*) over (order by a
|
|
range between 'abcd' preceding and current row)
|
|
from t1;
|
|
|
|
--error ER_WRONG_TYPE_FOR_RANGE_FRAME
|
|
select
|
|
count(*) over (order by a
|
|
range between current row and 'foo' following)
|
|
from t1;
|
|
|
|
--echo # Try range frame with invalid bounds
|
|
--error ER_WRONG_TYPE_FOR_ROWS_FRAME
|
|
select
|
|
count(*) over (order by a
|
|
rows between 0.5 preceding and current row)
|
|
from t1;
|
|
|
|
--error ER_WRONG_TYPE_FOR_ROWS_FRAME
|
|
select
|
|
count(*) over (order by a
|
|
rows between current row and 3.14 following)
|
|
from t1;
|
|
|
|
--echo #
|
|
--echo # EXCLUDE clause is parsed but not supported
|
|
--echo #
|
|
|
|
--error ER_FRAME_EXCLUSION_NOT_SUPPORTED
|
|
select
|
|
count(*) over (order by a
|
|
rows between 1 preceding and 1 following
|
|
exclude current row)
|
|
from t1;
|
|
|
|
--error ER_FRAME_EXCLUSION_NOT_SUPPORTED
|
|
select
|
|
count(*) over (order by a
|
|
range between 1 preceding and 1 following
|
|
exclude ties)
|
|
from t1;
|
|
|
|
--error ER_FRAME_EXCLUSION_NOT_SUPPORTED
|
|
select
|
|
count(*) over (order by a
|
|
range between 1 preceding and 1 following
|
|
exclude group)
|
|
from t1;
|
|
|
|
# EXCLUDE NO OTHERS means 'don't exclude anything'
|
|
select
|
|
count(*) over (order by a
|
|
rows between 1 preceding and 1 following
|
|
exclude no others)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Window function in grouping query
|
|
--echo #
|
|
|
|
create table t1 (
|
|
username varchar(32),
|
|
amount int
|
|
);
|
|
|
|
insert into t1 values
|
|
('user1',1),
|
|
('user1',5),
|
|
('user1',3),
|
|
('user2',10),
|
|
('user2',20),
|
|
('user2',30);
|
|
|
|
select
|
|
username,
|
|
sum(amount) as s,
|
|
rank() over (order by s desc)
|
|
from t1
|
|
group by username;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # mdev-9719: Window function in prepared statement
|
|
--echo #
|
|
|
|
create table t1(a int, b int, x char(32));
|
|
insert into t1 values (2, 10, 'xx');
|
|
insert into t1 values (2, 10, 'zz');
|
|
insert into t1 values (2, 20, 'yy');
|
|
insert into t1 values (3, 10, 'xxx');
|
|
insert into t1 values (3, 20, 'vvv');
|
|
|
|
prepare stmt from 'select a, row_number() over (partition by a order by b) from t1';
|
|
--sorted_result
|
|
execute stmt;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # mdev-9754: Window name resolution in prepared statement
|
|
--echo #
|
|
|
|
create table t0 (a int);
|
|
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
|
|
create table t1 (pk int, c int);
|
|
insert into t1 select a+1,1 from t0;
|
|
update t1 set c=2 where pk not in (1,2,3,4);
|
|
select * from t1;
|
|
|
|
prepare stmt from
|
|
'select
|
|
pk, c,
|
|
count(*) over w1 as CNT
|
|
from t1
|
|
window w1 as (partition by c order by pk
|
|
rows between 2 preceding and 2 following)';
|
|
execute stmt;
|
|
|
|
drop table t0,t1;
|
|
|
|
--echo #
|
|
--echo # EXPLAIN FORMAT=JSON support for window functions
|
|
--echo #
|
|
create table t0 (a int);
|
|
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
|
|
explain format=json select rank() over (order by a) from t0;
|
|
|
|
create table t1 (a int, b int, c int);
|
|
insert into t1 select a,a,a from t0;
|
|
|
|
explain format=json
|
|
select
|
|
a,
|
|
rank() over (order by sum(b))
|
|
from t1
|
|
group by a;
|
|
|
|
explain format=json
|
|
select
|
|
a,
|
|
rank() over (order by sum(b))
|
|
from t1
|
|
group by a
|
|
order by null;
|
|
|
|
--echo #
|
|
--echo # Check how window function works together with GROUP BY and HAVING
|
|
--echo #
|
|
|
|
select b,max(a) as MX, rank() over (order by b) from t1 group by b having MX in (3,5,7);
|
|
explain format=json
|
|
select b,max(a) as MX, rank() over (order by b) from t1 group by b having MX in (3,5,7);
|
|
|
|
drop table t1;
|
|
drop table t0;
|
|
|
|
--echo #
|
|
--echo # Building ordering index for window functions
|
|
--echo #
|
|
|
|
create table t1 (
|
|
pk int primary key,
|
|
a int,
|
|
b int,
|
|
c int
|
|
);
|
|
|
|
insert into t1 values
|
|
(101 , 0, 10, 1),
|
|
(102 , 0, 10, 2),
|
|
(103 , 1, 10, 3),
|
|
(104 , 1, 10, 4),
|
|
(108 , 2, 10, 5),
|
|
(105 , 2, 20, 6),
|
|
(106 , 2, 20, 7),
|
|
(107 , 2, 20, 8),
|
|
(109 , 4, 20, 9),
|
|
(110 , 4, 20, 10),
|
|
(111 , 5, NULL, 11),
|
|
(112 , 5, 1, 12),
|
|
(113 , 5, NULL, 13),
|
|
(114 , 5, NULL, 14),
|
|
(115 , 5, NULL, 15),
|
|
(116 , 6, 1, NULL),
|
|
(117 , 6, 1, 10),
|
|
(118 , 6, 1, 1),
|
|
(119 , 6, 1, NULL),
|
|
(120 , 6, 1, NULL),
|
|
(121 , 6, 1, NULL),
|
|
(122 , 6, 1, 2),
|
|
(123 , 6, 1, 20),
|
|
(124 , 6, 1, -10),
|
|
(125 , 6, 1, NULL),
|
|
(126 , 6, 1, NULL),
|
|
(127 , 6, 1, NULL);
|
|
|
|
--sorted_result
|
|
select sum(b) over (partition by a order by b,pk
|
|
rows between unbounded preceding and current row) as c1,
|
|
avg(b) over (w1 rows between 1 preceding and 1 following) as c2,
|
|
sum(c) over (w2 rows between 1 preceding and 1 following) as c5,
|
|
avg(b) over (w1 rows between 5 preceding and 5 following) as c3,
|
|
sum(b) over (w1 rows between 1 preceding and 1 following) as c4
|
|
from t1
|
|
window w1 as (partition by a order by b,pk),
|
|
w2 as (partition by b order by c,pk);
|
|
|
|
drop table t1;
|
|
|
|
|
|
--echo #
|
|
--echo # MDEV-9848: Window functions: reuse sorting and/or scanning
|
|
--echo #
|
|
|
|
create table t1 (a int, b int, c int);
|
|
insert into t1 values
|
|
(1,3,1),
|
|
(2,2,1),
|
|
(3,1,1);
|
|
|
|
--echo # Check using counters
|
|
flush status;
|
|
select
|
|
rank() over (partition by c order by a),
|
|
rank() over (partition by c order by b)
|
|
from t1;
|
|
show status like '%sort%';
|
|
|
|
flush status;
|
|
select
|
|
rank() over (partition by c order by a),
|
|
rank() over (partition by c order by a)
|
|
from t1;
|
|
show status like '%sort%';
|
|
|
|
# Check using EXPLAIN FORMAT=JSON
|
|
explain format=json
|
|
select
|
|
rank() over (partition by c order by a),
|
|
rank() over (partition by c order by a)
|
|
from t1;
|
|
|
|
explain format=json
|
|
select
|
|
rank() over (order by a),
|
|
row_number() over (order by a)
|
|
from t1;
|
|
|
|
explain format=json
|
|
select
|
|
rank() over (partition by c order by a),
|
|
count(*) over (partition by c)
|
|
from t1;
|
|
|
|
explain format=json
|
|
select
|
|
count(*) over (partition by c),
|
|
rank() over (partition by c order by a)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
|
|
--echo #
|
|
--echo # MDEV-9847: Window functions: crash with big_tables=1
|
|
--echo #
|
|
create table t1(a int);
|
|
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
set @tmp=@@big_tables;
|
|
set big_tables=1;
|
|
select rank() over (order by a) from t1;
|
|
set big_tables=@tmp;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Check if "ORDER BY window_func" works
|
|
--echo #
|
|
|
|
create table t1 (s1 int, s2 char(5));
|
|
insert into t1 values (1,'a');
|
|
insert into t1 values (null,null);
|
|
insert into t1 values (1,null);
|
|
insert into t1 values (null,'a');
|
|
insert into t1 values (2,'b');
|
|
insert into t1 values (-1,'');
|
|
|
|
explain format=json
|
|
select *, row_number() over (order by s1, s2) as X from t1 order by X desc;
|
|
select *, row_number() over (order by s1, s2) as X from t1 order by X desc;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Try window functions that are not directly present in the select list
|
|
--echo #
|
|
create table t1 (a int, b int);
|
|
insert into t1 values
|
|
(1,3),
|
|
(2,2),
|
|
(3,1);
|
|
|
|
select
|
|
a, b,
|
|
rank() over (order by a), rank() over (order by b),
|
|
rank() over (order by a) - rank() over (order by b) as diff
|
|
from
|
|
t1;
|
|
|
|
drop table t1;
|
|
|
|
create table t1 (i int);
|
|
insert into t1 values (1),(2);
|
|
SELECT MAX(i) OVER (PARTITION BY (i)) FROM t1;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Check the 0 in ROWS 0 PRECEDING
|
|
--echo #
|
|
|
|
create table t1 (
|
|
part_id int,
|
|
pk int,
|
|
a int
|
|
);
|
|
|
|
insert into t1 values (1, 1, 1);
|
|
insert into t1 values (1, 2, 2);
|
|
insert into t1 values (1, 3, 4);
|
|
insert into t1 values (1, 4, 8);
|
|
|
|
select
|
|
pk, a,
|
|
sum(a) over (order by pk rows between 0 preceding and current row)
|
|
from t1;
|
|
|
|
select
|
|
pk, a,
|
|
sum(a) over (order by pk rows between 1 preceding and 0 preceding)
|
|
from t1;
|
|
|
|
insert into t1 values (200, 1, 1);
|
|
insert into t1 values (200, 2, 2);
|
|
insert into t1 values (200, 3, 4);
|
|
insert into t1 values (200, 4, 8);
|
|
select
|
|
part_id, pk, a,
|
|
sum(a) over (partition by part_id order by pk rows between 0 preceding and current row)
|
|
from t1;
|
|
|
|
select
|
|
part_id, pk, a,
|
|
sum(a) over (partition by part_id order by pk rows between 1 preceding and 0 preceding)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
--echo #
|
|
--echo # MDEV-9780, The "DISTINCT must not bet converted into GROUP BY when
|
|
--echo # window functions are present" part
|
|
--echo #
|
|
|
|
create table t1 (part_id int, a int);
|
|
insert into t1 values
|
|
(100, 1),
|
|
(100, 2),
|
|
(100, 2),
|
|
(100, 3),
|
|
(2000, 1),
|
|
(2000, 2),
|
|
(2000, 3),
|
|
(2000, 3),
|
|
(2000, 3);
|
|
|
|
select rank() over (partition by part_id order by a) from t1;
|
|
select distinct rank() over (partition by part_id order by a) from t1;
|
|
explain format=json
|
|
select distinct rank() over (partition by part_id order by a) from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-9893: Window functions with different ORDER BY lists,
|
|
--echo # one of these lists containing an expression
|
|
--echo #
|
|
|
|
create table t1 (s1 int, s2 char(5));
|
|
insert into t1 values (1,'a');
|
|
insert into t1 values (null,null);
|
|
insert into t1 values (3,null);
|
|
insert into t1 values (4,'a');
|
|
insert into t1 values (2,'b');
|
|
insert into t1 values (-1,'');
|
|
|
|
select
|
|
*,
|
|
ROW_NUMBER() OVER (order by s1),
|
|
CUME_DIST() OVER (order by -s1)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
|
|
--echo #
|
|
--echo # MDEV-9925: Wrong result with aggregate function as a window function
|
|
--echo #
|
|
create table t1 (i int);
|
|
insert into t1 values (1),(2);
|
|
select i, sum(i) over (partition by i) from t1;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-9922: Assertion `!join->only_const_tables() && fsort' failed in int create_sort_index
|
|
--echo #
|
|
create view v1 as select 1 as i;
|
|
select rank() over (order by i) from v1;
|
|
drop view v1;
|
|
|
|
--echo #
|
|
--echo # MDEV-10097: Assertion `count > 0' failed in Item_sum_sum::add_helper(bool)
|
|
--echo #
|
|
CREATE TABLE `orders` (
|
|
`o_orderkey` int(11) NOT NULL,
|
|
`o_custkey` int(11) DEFAULT NULL,
|
|
PRIMARY KEY (`o_orderkey`)
|
|
) DEFAULT CHARSET=latin1;
|
|
|
|
INSERT INTO `orders` VALUES (59908,242);
|
|
INSERT INTO `orders` VALUES (59940,238);
|
|
|
|
SELECT o_custkey, avg(o_custkey) OVER (PARTITION BY abs(o_custkey)
|
|
ORDER BY o_custkey
|
|
RANGE BETWEEN 15 FOLLOWING
|
|
AND 15 FOLLOWING) from orders;
|
|
DROP table orders;
|
|
|
|
--echo #
|
|
--echo # MDEV-10842: window functions with the same order column
|
|
--echo # but different directions
|
|
--echo #
|
|
|
|
create table t1 (
|
|
pk int primary key,
|
|
a int,
|
|
b int,
|
|
c char(10)
|
|
);
|
|
|
|
insert into t1 values
|
|
( 1, 0, 1, 'one'),
|
|
( 2, 0, 2, 'two'),
|
|
( 3, 0, 3, 'three'),
|
|
( 4, 1, 1, 'one'),
|
|
( 5, 1, 1, 'two'),
|
|
( 6, 1, 2, 'three'),
|
|
( 7, 2, NULL, 'n_one'),
|
|
( 8, 2, 1, 'n_two'),
|
|
( 9, 2, 2, 'n_three'),
|
|
(10, 2, 0, 'n_four'),
|
|
(11, 2, 10, NULL);
|
|
|
|
select pk,
|
|
row_number() over (order by pk desc) as r_desc,
|
|
row_number() over (order by pk asc) as r_asc
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-10874: two window functions with ccompatible sorting
|
|
--echo #
|
|
|
|
create table t1 (
|
|
pk int primary key,
|
|
a int,
|
|
b int,
|
|
c char(10),
|
|
d decimal(10, 3),
|
|
e real
|
|
);
|
|
insert into t1 values
|
|
( 1, 0, 1, 'one', 0.1, 0.001),
|
|
( 2, 0, 2, 'two', 0.2, 0.002),
|
|
( 3, 0, 3, 'three', 0.3, 0.003),
|
|
( 4, 1, 2, 'three', 0.4, 0.004),
|
|
( 5, 1, 1, 'two', 0.5, 0.005),
|
|
( 6, 1, 1, 'one', 0.6, 0.006),
|
|
( 7, 2, NULL, 'n_one', 0.5, 0.007),
|
|
( 8, 2, 1, 'n_two', NULL, 0.008),
|
|
( 9, 2, 2, NULL, 0.7, 0.009),
|
|
(10, 2, 0, 'n_four', 0.8, 0.010),
|
|
(11, 2, 10, NULL, 0.9, NULL);
|
|
|
|
select pk, a, d,
|
|
sum(d) over (partition by a order by pk
|
|
ROWS between 1 preceding and current row) as sum_1,
|
|
sum(d) over (order by a
|
|
ROWS BETWEEN 1 preceding and 2 following) as sum_2
|
|
from t1;
|
|
explain format=json
|
|
select pk, a, d,
|
|
sum(d) over (partition by a order by pk
|
|
ROWS between 1 preceding and current row) as sum_1,
|
|
sum(d) over (order by a
|
|
ROWS BETWEEN 1 preceding and 2 following) as sum_2
|
|
from t1;
|
|
|
|
select pk, a, d,
|
|
sum(d) over (partition by a order by pk desc
|
|
ROWS between 1 preceding and current row) as sum_1,
|
|
sum(d) over (order by a
|
|
ROWS BETWEEN 1 preceding and 2 following) as sum_2
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-9941: two window functions with compatible partitions
|
|
--echo #
|
|
|
|
create table t1 (
|
|
a int,
|
|
b int,
|
|
c int
|
|
);
|
|
|
|
insert into t1 values
|
|
(10, 1, 1),
|
|
(10, 3, 10),
|
|
(10, 1, 10),
|
|
(10, 3, 100),
|
|
(10, 5, 1000),
|
|
(10, 1, 100);
|
|
|
|
explain format=json
|
|
select
|
|
a,b,c,
|
|
row_number() over (partition by a),
|
|
row_number() over (partition by a, b)
|
|
from t1;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-10815: Window Function Expressions Wrong Results
|
|
--echo #
|
|
create table t(a decimal(35,10), b int);
|
|
insert into t(a,b) values(1,1);
|
|
insert into t(a,b) values(2,1);
|
|
insert into t(a,b) values(0,1);
|
|
insert into t(a,b) values(1, 2);
|
|
insert into t(a,b) values(1.5,2);
|
|
insert into t(a,b) values(3, 2);
|
|
insert into t(a,b) values(4.5,2);
|
|
select a, b,
|
|
sum(t.a) over (partition by t.b order by a) as simple_sum,
|
|
sum(t.a) over (partition by t.b order by a) + 1 as sum_and_const,
|
|
sum(t.b) over (partition by t.b order by a) + sum(t.a) over (partition by t.b order by a) as sum_and_sum
|
|
from t
|
|
order by t.b, t.a;
|
|
drop table t;
|
|
|
|
--echo #
|
|
--echo # MDEV-10669: Crash in SELECT with window function used
|
|
--echo #
|
|
create table t(a decimal(35,10), b int);
|
|
insert into t(a,b) values(1,1);
|
|
insert into t(a,b) values(2,1);
|
|
insert into t(a,b) values(0,1);
|
|
SELECT (CASE WHEN sum(t.a) over (partition by t.b)=0 THEN null ELSE null END) AS a FROM t;
|
|
SELECT ifnull(((t.a) / CASE WHEN sum(t.a) over(partition by t.b) =0 then null else null end) ,0) from t;
|
|
SELECT 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))
|
|
from t;
|
|
drop table t;
|
|
|
|
--echo #
|
|
--echo # MDEV-10868: view definitions with window functions
|
|
--echo #
|
|
|
|
create table t0 (a int);
|
|
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
|
|
|
create table t1 (pk int, c int);
|
|
insert into t1 select a+1,1 from t0;
|
|
update t1 set c=2 where pk not in (1,2,3,4);
|
|
select * from t1;
|
|
|
|
let $q=
|
|
select pk, c, c/count(*) over (partition by c order by pk
|
|
rows between 1 preceding and 2 following) as CNT
|
|
from t1;
|
|
|
|
eval $q;
|
|
eval create view v1 as $q;
|
|
show create view v1;
|
|
select * from v1;
|
|
|
|
let $q=
|
|
select pk, c, c/count(*) over w1 as CNT from t1
|
|
window w1 as (partition by c order by pk rows between 1 preceding and 2 following);
|
|
|
|
eval $q;
|
|
eval create view v2 as $q;
|
|
show create view v2;
|
|
select * from v2;
|
|
|
|
let $q=
|
|
select pk, c, c/count(*) over w1 as CNT from t1
|
|
window w1 as (partition by c order by pk rows unbounded preceding);
|
|
|
|
eval $q;
|
|
eval create view v3 as $q;
|
|
show create view v3;
|
|
select * from v3;
|
|
|
|
let $q=
|
|
select pk, c, c/count(*) over (partition by c order by pk
|
|
range between 3 preceding and current row) as CNT
|
|
from t1;
|
|
|
|
eval $q;
|
|
eval create view v4 as $q;
|
|
show create view v4;
|
|
select * from v4;
|
|
|
|
drop view v1,v2,v3,v4;
|
|
drop table t0,t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-10875: window function in subquery
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (i INT);
|
|
INSERT INTO t1 VALUES (3),(1);
|
|
|
|
CREATE TABLE t2 (c VARCHAR(8));
|
|
INSERT INTO t2 VALUES ('foo'),('bar'),('foo');
|
|
|
|
SELECT COUNT(*) OVER (PARTITION BY c) FROM t2;
|
|
|
|
SELECT * FROM t1 WHERE i IN ( SELECT COUNT(*) OVER (PARTITION BY c) FROM t2 );
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo #
|
|
--echo # MDEV-9976: window function without PARTITION BY and ORDER BY
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (id int, a int);
|
|
INSERT INTO t1 VALUES
|
|
(1,1000), (2,1100), (3,1800), (4,1500), (5,1700), (6,1200),
|
|
(7,2000), (8,2100), (9,1600);
|
|
|
|
--sorted_result
|
|
SELECT id, sum(a) OVER (PARTITION BY id
|
|
ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
|
|
FROM t1;
|
|
|
|
--sorted_result
|
|
SELECT id, sum(a) OVER (ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
|
|
FROM t1;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-11867: window function with aggregation
|
|
--echo # over the result of grouping
|
|
--echo #
|
|
|
|
create table t1 (
|
|
username varchar(32),
|
|
amount int
|
|
);
|
|
|
|
insert into t1 values
|
|
('user1',1),
|
|
('user1',5),
|
|
('user1',3),
|
|
('user2',10),
|
|
('user2',20),
|
|
('user2',30);
|
|
|
|
select username, sum(amount) as s, avg(sum(amount)) over (order by s desc)
|
|
from t1
|
|
group by username;
|
|
|
|
select username, sum(amount), avg(sum(amount)) over (order by sum(amount) desc)
|
|
from t1
|
|
group by username;
|
|
|
|
drop table t1;
|
|
|
|
|