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# name: test/sql/function/numeric/test_trunc_precision.test
# description: Truncation to precision tests
# group: [numeric]
statement ok
PRAGMA enable_verification
statement ok
CREATE TABLE truncme(a DOUBLE, b INTEGER, c UINTEGER)
statement ok
INSERT INTO truncme VALUES (42.123456, 37, 19), (-3.141592, -75, 5);
# Non-integral types should truncate
foreach datatype DOUBLE FLOAT DECIMAL(10,6)
query RR
select trunc(42.12345::${datatype}, 2), trunc(42.12345::${datatype}, -1)
----
42.12 40
query RR
select trunc(-42.12345::${datatype}, 2), trunc(-42.12345::${datatype}, -1)
----
-42.12 -40
query RR
select trunc(127::${datatype}, 2), trunc(127::${datatype}, -1)
----
127.000000 120
query RR
select trunc(-127::${datatype}, 2), trunc(-127::${datatype}, -1)
----
-127.000000 -120
query RR
select trunc(0::${datatype}, 2), trunc(0::${datatype}, -1)
----
0.000000 0.000000
query II
select trunc(a::${datatype}, 2), trunc(a::${datatype}, -1)
from truncme
----
42.12 40
-3.14 0
endloop
# Signed integers should truncate too
foreach signed TINYINT SMALLINT INTEGER BIGINT HUGEINT
query RR
select trunc(54::${signed}, 2), trunc(54::${signed}, -1)
----
54 50
query RR
select trunc(-27::${signed}, 2), trunc(-27::${signed}, -1)
----
-27 -20
query II
select trunc(b::${signed}, 2), trunc(b::${signed}, -1)
from truncme
----
37 30
-75 -70
endloop
# Unsigned integers should truncate too
foreach unsigned UTINYINT USMALLINT UINTEGER UBIGINT UHUGEINT
query RR
select trunc(15::${unsigned}, 2), trunc(15::${unsigned}, -1)
----
15 10
query II
select trunc(c::${unsigned}, 2), trunc(c::${unsigned}, -1)
from truncme
----
19 10
5 0
endloop
# Test specials
foreach special DOUBLE FLOAT
foreach precision 2 0 -1
query III
select
trunc('NAN'::${special}, ${precision}),
trunc('infinity'::${special}, ${precision}),
trunc('-infinity'::${special}, ${precision})
;
----
NAN infinity -infinity
endloop
endloop
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