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129 lines
7.4 KiB
Text
129 lines
7.4 KiB
Text
CREATE TABLE t1 (name CHAR(10), test double, score DECIMAL(19,4));
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INSERT INTO t1 VALUES
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('Chun', 0, 3), ('Chun', 0, 7),
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('Kaolin', 0.5, 3), ('Kaolin', 0.6, 7),
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('Kaolin', 0.5, 4),
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('Tatiana', 0.8, 4), ('Tata', 0.8, 4);
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--echo #
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--echo # Test invalid syntax
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--echo #
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--echo # Order by clause has more than one element
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--error ER_PARSE_ERROR
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select percentile_disc(0.5) within group(order by score,test) over (partition by name) from t1;
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--error ER_PARSE_ERROR
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select percentile_cont(0.5) within group(order by score,test) over (partition by name) from t1;
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--echo # Order by clause has no element
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--error ER_PARSE_ERROR
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select percentile_disc(0.5) within group() over (partition by name) from t1;
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--error ER_PARSE_ERROR
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select percentile_cont(0.5) within group() over (partition by name) from t1;
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--echo # No parameters to the percentile functions
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--error ER_PARSE_ERROR
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select percentile_disc() within group() over (partition by name) from t1;
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--error ER_PARSE_ERROR
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select percentile_cont() within group() over (partition by name) from t1;
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--echo #
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--echo # Test simple syntax
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--echo #
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select name, percentile_cont(0.5) within group(order by score) over (partition by name) as c from t1;
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select name, percentile_disc(0.5) within group(order by score) over (partition by name) as c from t1;
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--echo # no partition clause
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select name, percentile_disc(0.5) within group(order by score) over () from t1;
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select name, percentile_cont(0.5) within group(order by score) over () from t1;
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--echo # argument set to null
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--error ER_WRONG_TYPE_OF_ARGUMENT
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select name, percentile_cont(null) within group(order by score) over (partition by name) from t1;
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--error ER_WRONG_TYPE_OF_ARGUMENT
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select name, percentile_disc(null) within group(order by score) over (partition by name) from t1;
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--echo #subqueries having percentile functions
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select * from ( select name , percentile_cont(0.5) within group ( order by score) over (partition by name ) from t1 ) as t;
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select * from ( select name , percentile_disc(0.5) within group ( order by score) over (partition by name ) from t1 ) as t;
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select name from t1 a where (select percentile_disc(0.5) within group (order by score) over (partition by name) from t1 b limit 1) >= 0.5;
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--echo #disallowed fields in order by
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--error ER_WRONG_TYPE_FOR_PERCENTILE_FUNC
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select score, percentile_cont(0.5) within group(order by name) over (partition by score) from t1;
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--error ER_WRONG_TYPE_FOR_PERCENTILE_FUNC
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select score, percentile_disc(0.5) within group(order by name) over (partition by score) from t1;
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--echo #parameter value should be in the range of [0,1]
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--error ER_ARGUMENT_OUT_OF_RANGE
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select percentile_disc(1.5) within group(order by score) over (partition by name) from t1;
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--error ER_ARGUMENT_OUT_OF_RANGE
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select percentile_cont(1.5) within group(order by score) over (partition by name) from t1;
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--echo #Argument should remain constant for the entire partition
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--error ER_ARGUMENT_NOT_CONSTANT
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select name,percentile_cont(test) within group(order by score) over (partition by name) from t1;
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--error ER_ARGUMENT_NOT_CONSTANT
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select name, percentile_disc(test) within group(order by score) over (partition by name) from t1;
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--echo #only numerical types are allowed as argument to percentile functions
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--error ER_WRONG_TYPE_OF_ARGUMENT
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select name, percentile_cont(name) within group(order by score) over (partition by name) from t1;
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--error ER_WRONG_TYPE_OF_ARGUMENT
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select name, percentile_disc(name) within group(order by score) over (partition by name) from t1;
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--echo #complete query with partition column
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select name,cume_dist() over (partition by name order by score), percentile_disc(0.5) within group(order by score) over (partition by name) as c from t1;
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select name, percentile_cont(0.5) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.1) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.2) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.3) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.4) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.5) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.6) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.7) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.8) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(0.9) within group(order by score) over (partition by name) as c from t1;
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select name,cume_dist() over (partition by name order by score) as b, percentile_disc(1) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.1) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.2) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.3) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.4) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.5) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.6) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.7) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.8) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(0.9) within group(order by score) over (partition by name) as c from t1;
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select median(score) over (partition by name), percentile_cont(1) within group(order by score) over (partition by name) as c from t1;
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drop table t1;
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--echo #
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--echo # MDEV-13352: MEDIAN window function over a table with virtual column
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--echo # in select with CTE and ORDER BY
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--echo #
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CREATE TABLE t1 (f1 int ,f2 int ,f3 int, f4 int, v1 int AS (-f4) virtual);
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INSERT INTO t1(f1,f2,f3,f4) VALUES
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(1,10,100,10), (7,11,112,15), (3,14,121,12);
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WITH CTE AS (SELECT MIN(f3) OVER () FROM t1)
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SELECT MEDIAN(f3) OVER () FROM t1
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ORDER BY f1, f2, f3, f4, v1;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-15846: Sever crashed with MEDIAN() window function
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--echo #
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CREATE TABLE t1 ( pk int PRIMARY KEY, a1 int, a2 int);
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SELECT MEDIAN(`a1`) OVER (),
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MEDIAN(`a2`) OVER (PARTITION BY `pk`)
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FROM t1;
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DROP TABLE t1;
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