# name: test/sql/aggregate/quantile_fun.test
# description: Test pg_sequence function
# group: [aggregate]

require tpch

# scalar quantiles
statement ok
create table quantiles as select range r, random() FROM range(100) union all values (NULL, 0.1), (NULL, 0.5), (NULL, 0.9) order by 2;

statement ok
CALL dbgen(sf=0.001);

statement ok
PRAGMA verify_external;

statement ok
SELECT quantile_disc(0.1::decimal(4,1), [0.1, 0.5, 0.9]);

statement ok
SELECT PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY "l_extendedprice") FROM lineitem;

statement ok
SET default_null_order='nulls_first';

foreach type decimal(4,1) decimal(8,1) decimal(12,1) decimal(18,1) decimal(24,1)

query I
SELECT quantile_disc(r::${type}, 0.1) FROM quantiles
----
9.0

query I
SELECT quantile_disc(r::${type}, [0.1, 0.5, 0.9]) FROM quantiles
----
[9.0, 49.0, 89.0]

query I
SELECT quantile_cont(r::${type}, 0.15) FROM quantiles
----
14.8

query I
SELECT quantile_cont(r::${type}, [0.15, 0.5, 0.9]) FROM quantiles
----
[14.8, 49.5, 89.1]

endloop

statement error
SELECT quantile_cont(NULL, CAST(NULL AS DOUBLE[]))
----
not be NULL