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abs for decimal

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This commit is contained in:
chertus 2018-08-07 17:35:21 +03:00
parent 7984b4f91d
commit cae97b1e59
3 changed files with 7 additions and 4 deletions
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7
dbms/src/Functions/FunctionsArithmetic.h
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@ -602,8 +602,8 @@ struct AbsImpl
static inline ResultType apply(A a)
{
if constexpr (std::is_same_v<A, __int128>)
return a < 0 ? -a : a;
if constexpr (decTrait<A>())
return a < 0 ? A(-a) : a;
else if constexpr (std::is_integral_v<A> && std::is_signed_v<A>)
return a < 0 ? static_cast<ResultType>(~a) + 1 : a;
else if constexpr (std::is_integral_v<A> && std::is_unsigned_v<A>)
@ -1240,8 +1240,7 @@ struct FunctionUnaryArithmeticMonotonicity;
template <template <typename> class Op, typename Name, bool is_injective>
class FunctionUnaryArithmetic : public IFunction
{
//static constexpr bool allow_decimal = std::is_same_v<Op<Int8>, NegateImpl<Int8>> || std::is_same_v<Op<Int8>, AbsImpl<Int8>>;
static constexpr bool allow_decimal = std::is_same_v<Op<Int8>, NegateImpl<Int8>>;
static constexpr bool allow_decimal = std::is_same_v<Op<Int8>, NegateImpl<Int8>> || std::is_same_v<Op<Int8>, AbsImpl<Int8>>;
template <typename F>
static bool castType(const IDataType * type, F && f)

3
dbms/tests/queries/0_stateless/00700_decimal_arithm.reference
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@ -20,3 +20,6 @@
-42 42 42 42 0.420000000 0.420000000000000000 0.42000000000000000000000000000000000000 42.420 42.420000000 42.42
0 0 0 0 0.000000000 0.000000000000000000 0.00000000000000000000000000000000000000 0.000 0.000000000 0.00
42 -42 -42 -42 -0.420000000 -0.420000000000000000 -0.42000000000000000000000000000000000000 -42.420 -42.420000000 -42.42
42 42 42 0.420000000 0.420000000000000000 0.42000000000000000000000000000000000000 42.420 42.420000000 42.42
0 0 0 0.000000000 0.000000000000000000 0.00000000000000000000000000000000000000 0.000 0.000000000 0.00
42 42 42 0.420000000 0.420000000000000000 0.42000000000000000000000000000000000000 42.420 42.420000000 42.42

1
dbms/tests/queries/0_stateless/00700_decimal_arithm.sql
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@ -50,5 +50,6 @@ SELECT 21 + i, 21 - i, 84 - i, 21 * i, -21 * i, 21 / i, 84 / i FROM test.decimal
SELECT 21 + j, 21 - j, 84 - j, 21 * j, -21 * j, 21 / j, 84 / j FROM test.decimal WHERE j > 0;
SELECT a, -a, -b, -c, -d, -e, -f, -g, -h, -j from test.decimal ORDER BY a;
SELECT abs(a), abs(b), abs(c), abs(d), abs(e), abs(f), abs(g), abs(h), abs(j) from test.decimal ORDER BY a;
DROP TABLE IF EXISTS test.decimal;