# name: test/sql/function/numeric/test_trunc.test
# description: Truncation test
# group: [numeric]

statement ok
CREATE TABLE truncme(a DOUBLE, b INTEGER, c UINTEGER)

statement ok
INSERT INTO truncme VALUES (42.123456, 3, 19), (-3.141592, -7, 5);

# Non-intergral should truncate 
foreach datatype DOUBLE FLOAT DECIMAL(10,6)

query R
select trunc(42.12345::${datatype})
----
42.000000

query R
select trunc(-42.12345::${datatype})
----
-42.000000

query R
select trunc(127::${datatype})
----
127.000000

query R
select trunc(-127::${datatype})
----
-127.000000

query R
select trunc(0::${datatype})
----
0.000000

query I
select trunc(a::${datatype}) from truncme
----
42.000000
-3.000000

endloop

# Signed integers should be a NOP
foreach signed TINYINT SMALLINT INTEGER BIGINT HUGEINT

query R
select trunc(54::${signed})
----
54

query R
select trunc(-27::${signed})
----
-27

query I
select trunc(b::${signed}) from truncme
----
3
-7

endloop

# Unsigned integers should be a NOP
foreach unsigned UTINYINT USMALLINT UINTEGER UBIGINT UHUGEINT

query R
select trunc(15::${unsigned})
----
15

query I
select trunc(c::${unsigned}) from truncme
----
19
5

endloop

# Test specials
foreach special DOUBLE FLOAT

query III
select trunc('NAN'::${special}), trunc('infinity'::${special}), trunc('-infinity'::${special});
----
NAN	infinity	-infinity

endloop