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Commit f04426f7 authored by Varun Gupta's avatar Varun Gupta
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Added more tests for the percentile functions

parent 03ed2232
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mysql-test/r/win_percentile_cont.result 0 → 100644
View file @ f04426f7
CREATE TABLE student (name CHAR(10), test double, score DECIMAL(19,4));
INSERT INTO student VALUES
('Chun', 0, 3), ('Chun', 0, 7),
('Kaolin', 0.5, 3), ('Kaolin', 0.6, 7),
('Kaolin', 0.5, 4),
('Tatiana', 0.8, 4), ('Tata', 0.8, 4);
select name, percentile_disc(0.5) within group(order by score) over () from student;
name percentile_disc(0.5) within group(order by score) over ()
Chun 4.0000000000
Chun 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select name, percentile_cont(0.5) within group(order by score) over () from student;
name percentile_cont(0.5) within group(order by score) over ()
Chun 4.0000000000
Chun 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select name, percentile_cont(null) within group(order by score) over (partition by name) from student;
name percentile_cont(null) within group(order by score) over (partition by name)
Chun NULL
Chun NULL
Kaolin NULL
Kaolin NULL
Kaolin NULL
Tatiana NULL
Tata NULL
select name, percentile_disc(null) within group(order by score) over (partition by name) from student;
name percentile_disc(null) within group(order by score) over (partition by name)
Chun NULL
Chun NULL
Kaolin NULL
Kaolin NULL
Kaolin NULL
Tatiana NULL
Tata NULL
select name, percentile_cont(0.5) within group(order by score) over (partition by name) as c from student;
name c
Chun 5.0000000000
Chun 5.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select name, percentile_disc(0.5) within group(order by score) over (partition by name) as c from student;
name c
Chun 3.0000000000
Chun 3.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select * from ( select name , percentile_cont(0.5) within group ( order by score) over (partition by name ) from student ) as t;
name percentile_cont(0.5) within group ( order by score) over (partition by name )
Chun 5.0000000000
Chun 5.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select * from ( select name , percentile_disc(0.5) within group ( order by score) over (partition by name ) from student ) as t;
name percentile_disc(0.5) within group ( order by score) over (partition by name )
Chun 3.0000000000
Chun 3.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Kaolin 4.0000000000
Tatiana 4.0000000000
Tata 4.0000000000
select name from student a where (select percentile_disc(0.5) within group (order by score) over (partition by name) from student b limit 1) >= 0.5;
name
Chun
Chun
Kaolin
Kaolin
Kaolin
Tatiana
Tata
select score, percentile_cont(0.5) within group(order by name) over (partition by score) from student;
ERROR HY000: Numeric datatype is required for Percentile_CONT function
select score, percentile_disc(0.5) within group(order by name) over (partition by score) from student;
score percentile_disc(0.5) within group(order by name) over (partition by score)
3.0000 Chun
7.0000 Chun
3.0000 Chun
7.0000 Chun
4.0000 Tata
4.0000 Tata
4.0000 Tata
select percentile_disc(0.5) within group(order by score,test) over (partition by name) from student;
ERROR HY000: Incorrect number of elements in the order list for 'percentile_disc'
select percentile_cont(0.5) within group(order by score,test) over (partition by name) from student;
ERROR HY000: Incorrect number of elements in the order list for 'percentile_cont'
select percentile_disc(1.5) within group(order by score) over (partition by name) from student;
ERROR HY000: Argument to the percentile functions does not belong to the range [0,1]
select percentile_cont(1.5) within group(order by score) over (partition by name) from student;
ERROR HY000: Argument to the percentile functions does not belong to the range [0,1]
select name,percentile_cont(test) within group(order by score) over (partition by name) from student;
ERROR HY000: Argument to the percentile functions is not a constant
select name, percentile_disc(test) within group(order by score) over (partition by name) from student;
ERROR HY000: Argument to the percentile functions is not a constant
drop table student;
mysql-test/t/win_percentile_cont.test 0 → 100644
View file @ f04426f7
CREATE TABLE student (name CHAR(10), test double, score DECIMAL(19,4));
INSERT INTO student VALUES
('Chun', 0, 3), ('Chun', 0, 7),
('Kaolin', 0.5, 3), ('Kaolin', 0.6, 7),
('Kaolin', 0.5, 4),
('Tatiana', 0.8, 4), ('Tata', 0.8, 4);
#no partition clause
select name, percentile_disc(0.5) within group(order by score) over () from student;
select name, percentile_cont(0.5) within group(order by score) over () from student;
# argument set to null
select name, percentile_cont(null) within group(order by score) over (partition by name) from student;
select name, percentile_disc(null) within group(order by score) over (partition by name) from student;
# complete query with partition column
select name, percentile_cont(0.5) within group(order by score) over (partition by name) as c from student;
select name, percentile_disc(0.5) within group(order by score) over (partition by name) as c from student;
#subqueries having percentile functions
select * from ( select name , percentile_cont(0.5) within group ( order by score) over (partition by name ) from student ) as t;
select * from ( select name , percentile_disc(0.5) within group ( order by score) over (partition by name ) from student ) as t;
select name from student a where (select percentile_disc(0.5) within group (order by score) over (partition by name) from student b limit 1) >= 0.5;
# WITH STORED PROCEDURES
#DISALLOWED FIELDS IN ORDER BY CLAUSE
--error ER_WRONG_TYPE_FOR_PERCENTILE_CONT
select score, percentile_cont(0.5) within group(order by name) over (partition by score) from student;
select score, percentile_disc(0.5) within group(order by name) over (partition by score) from student;
# error with 2 order by elements
--error ER_NOT_SINGLE_ELEMENT_ORDER_LIST
select percentile_disc(0.5) within group(order by score,test) over (partition by name) from student;
--error ER_NOT_SINGLE_ELEMENT_ORDER_LIST
select percentile_cont(0.5) within group(order by score,test) over (partition by name) from student;
#parameter value should be in the range of 0 to 1( NEED TO THINK A WAY FOR THIS)
--error ER_ARGUMENT_OUT_OF_RANGE
select percentile_disc(1.5) within group(order by score) over (partition by name) from student;
--error ER_ARGUMENT_OUT_OF_RANGE
select percentile_cont(1.5) within group(order by score) over (partition by name) from student;
--error ER_ARGUMENT_NOT_CONSTANT
select name,percentile_cont(test) within group(order by score) over (partition by name) from student;
--error ER_ARGUMENT_NOT_CONSTANT
select name, percentile_disc(test) within group(order by score) over (partition by name) from student;
#CHECK TYPE OF THE ARGUMENT, SHOULD BE ONLY NUMERICAL
#select name, percentile_cont(name) within group(order by score) over (partition by name) from student;
drop table student;
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