# name: test/sql/aggregate/aggregates/test_mode.test
# description: Test mode function
# group: [aggregates]

statement ok
SET default_null_order='nulls_first';

statement ok
PRAGMA enable_verification

statement ok
PRAGMA verify_external

#Corner cases
statement error
select mode()
----

query I
select mode(NULL)
----
NULL

query I
select mode(1)
----
1

statement error
select mode(*)
----

statement ok
create table aggr(k int, v decimal(10,2));

statement ok
insert into aggr (k, v) values (1, 10), (1, 10), (1, 20), (1, 21);

query I
select mode(v) from aggr;
----
10

query I
SELECT mode(2) FROM range(100);
----
2

statement ok
insert into aggr (k, v) values (2, 20),(2, 20), (2, 25), (2, 30);

query I
SELECT CASE
       WHEN ( value = 10 or value = 20)
            THEN TRUE
            ELSE FALSE
       END
       FROM (select mode(v) as value from aggr) AS T
----
1

statement ok
insert into aggr (k, v) values (3, null);

query II
select k, mode(v)
    from aggr
    group by k
    order by k;
----
1	10.000000
2	20.000000
3	NULL

statement ok
create table names (name string)

statement ok
insert into names values ('pedro'), ('pedro'), ('pedro'),('hannes'),('hannes'),('mark'),(null);

query I
select mode(name) from names;
----
pedro

query III
select k, v, mode(v) over (partition by k)
    from aggr
    order by k, v;
----
1	10.00	10.000000
1	10.00	10.000000
1	20.00	10.000000
1	21.00	10.000000
2	20.00	20.000000
2	20.00	20.000000
2	25.00	20.000000
2	30.00	20.000000
3	NULL	NULL

# Empty Table
query I
SELECT mode(i) FROM range(100) tbl(i) WHERE 1=0;
----
NULL

# Temporal types
statement ok
create table dates (k int, v date)

statement ok
insert into dates values
    (1, '2021-05-02'),
    (1, '2021-05-02'),
    (2, '2021-05-02'),
    (2, '2020-02-29'),
    (2, '2020-02-29'),
    (3, '2004-09-01'),
    (1, null);

query I
select mode(v) from dates;
----
2021-05-02

query II
select k, mode(v) from dates group by k ORDER BY ALL;
----
1	2021-05-02
2	2020-02-29
3	2004-09-01

query III
select k, v, mode(v) over (partition by k)
    from dates
    order by k, v;
----
1	NULL	2021-05-02
1	2021-05-02	2021-05-02
1	2021-05-02	2021-05-02
2	2020-02-29	2020-02-29
2	2020-02-29	2020-02-29
2	2021-05-02	2020-02-29
3	2004-09-01	2004-09-01

statement ok
create table times (k int, v time)

statement ok
insert into times values
    (1, '12:11:49.5'),
    (1, '12:11:49.5'),
    (2, '12:11:49.5'),
    (2, '06:30:00'),
    (2, '06:30:00'),
    (3, '21:15:22'),
    (1, null);

query I
select mode(v) from times;
----
12:11:49.5

query II
select k, mode(v) from times group by k ORDER BY ALL;
----
1	12:11:49.5
2	06:30:00
3	21:15:22

query III
select k, v, mode(v) over (partition by k)
    from times
    order by k, v;
----
1	NULL	12:11:49.5
1	12:11:49.5	12:11:49.5
1	12:11:49.5	12:11:49.5
2	06:30:00	06:30:00
2	06:30:00	06:30:00
2	12:11:49.5	06:30:00
3	21:15:22	21:15:22

statement ok
create table timestamps (k int, v timestamp)

statement ok
insert into timestamps values
    (1, '2021-05-02 12:11:49.5'),
    (1, '2021-05-02 12:11:49.5'),
    (2, '2021-05-02 12:11:49.5'),
    (2,'2020-02-29 06:30:00'),
    (2,'2020-02-29 06:30:00'),
    (3,'2004-09-01 21:15:22'),
    (1, null);

query I
select mode(v) from timestamps;
----
2021-05-02 12:11:49.5

query II
select k, mode(v) from timestamps group by k ORDER BY ALL;
----
1	2021-05-02 12:11:49.5
2	2020-02-29 06:30:00
3	2004-09-01 21:15:22

query III
select k, v, mode(v) over (partition by k)
    from timestamps
    order by k, v;
----
1	NULL	2021-05-02 12:11:49.5
1	2021-05-02 12:11:49.5	2021-05-02 12:11:49.5
1	2021-05-02 12:11:49.5	2021-05-02 12:11:49.5
2	2020-02-29 06:30:00	2020-02-29 06:30:00
2	2020-02-29 06:30:00	2020-02-29 06:30:00
2	2021-05-02 12:11:49.5	2020-02-29 06:30:00
3	2004-09-01 21:15:22	2004-09-01 21:15:22

statement ok
create table intervals (k int, v interval)

statement ok
insert into intervals values
    (1, INTERVAL '5 months 2 days 12 hours 11 minutes 49 seconds'),
    (1, INTERVAL '5 months 2 days 12 hours 11 minutes 49 seconds'),
    (2, INTERVAL '5 months 2 days 12 hours 11 minutes 49 seconds'),
    (2, INTERVAL '2 months 29 days 6 hours 30 minutes'),
    (2, INTERVAL '2 months 29 days 6 hours 30 minutes'),
    (3, INTERVAL '9 months 1 day 21 hours 15 minutes 22 seconds'),
    (1, null);

query I
select mode(v) from intervals;
----
5 months 2 days 12:11:49

query II
select k, mode(v) from intervals group by k ORDER BY ALL;
----
1	5 months 2 days 12:11:49
2	2 months 29 days 06:30:00
3	9 months 1 day 21:15:22

query III
select k, v, mode(v) over (partition by k)
    from intervals
    order by k, v;
----
1	NULL	5 months 2 days 12:11:49
1	5 months 2 days 12:11:49	5 months 2 days 12:11:49
1	5 months 2 days 12:11:49	5 months 2 days 12:11:49
2	2 months 29 days 06:30:00	2 months 29 days 06:30:00
2	2 months 29 days 06:30:00	2 months 29 days 06:30:00
2	5 months 2 days 12:11:49	2 months 29 days 06:30:00
3	9 months 1 day 21:15:22	9 months 1 day 21:15:22

# Huge integers

statement ok
create table hugeints (k int, v hugeint)

statement ok
insert into hugeints values (1, 5), (1, 5), (2, 5), (2, 2), (2, 2), (3, 1), (1, null);

query I
select mode(v) from hugeints;
----
5

query II
select k, mode(v) from hugeints group by k ORDER BY ALL;
----
1	5
2	2
3	1

query III
select k, v, mode(v) over (partition by k)
    from hugeints
    order by k, v;
----
1	NULL	5
1	5	5
1	5	5
2	2	2
2	2	2
2	5	2
3	1	1

# MODE is order-sensitive, so this should bind and return the larger value
query I
SELECT MODE(order_occurrences ORDER BY order_occurrences DESC) FROM (
VALUES
	(500, 1),
	(1000, 2),
	(800, 3),
	(1000, 4),
	(500, 5),
	(550, 6),
	(400, 7),
	(200, 8),
	(10, 9)
)items_per_order(order_occurrences, item_count);
----
1000