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feat: Add mathematical operators for IntervalYearMonth type #11612

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feat: Add mathematical operators for IntervalYearMonth type #11612

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57 changes: 45 additions & 12 deletions velox/functions/prestosql/Arithmetic.h
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,8 @@ inline constexpr int kMinRadix = 2;
inline constexpr int kMaxRadix = 36;
inline constexpr long kLongMax = std::numeric_limits<int64_t>::max();
inline constexpr long kLongMin = std::numeric_limits<int64_t>::min();
inline constexpr long kIntegerMax = std::numeric_limits<int32_t>::max();
inline constexpr long kIntegerMin = std::numeric_limits<int32_t>::min();

inline constexpr char digits[36] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b',
Expand Down Expand Up @@ -73,7 +75,8 @@ struct MultiplyFunction {
}
};

// Multiply function for IntervalDayTime * Double and Double * IntervalDayTime.
// Multiply function for IntervalDayTime * Double, Double * IntervalDayTime,
// IntervalYearMonth * Double and Double * IntervalYearMonth.
template <typename T>
struct IntervalMultiplyFunction {
FOLLY_ALWAYS_INLINE double sanitizeInput(double d) {
Expand All @@ -84,25 +87,39 @@ struct IntervalMultiplyFunction {
}

template <
typename TResult,
typename T1,
typename T2,
typename = std::enable_if_t<
(std::is_same_v<T1, int64_t> && std::is_same_v<T2, double>) ||
(std::is_same_v<T1, double> && std::is_same_v<T2, int64_t>)>>
FOLLY_ALWAYS_INLINE void call(int64_t& result, T1 a, T2 b) {
(std::is_same_v<T1, double> && std::is_same_v<T2, int64_t>) ||
(std::is_same_v<T1, int32_t> && std::is_same_v<T2, double>) ||
(std::is_same_v<T1, double> && std::is_same_v<T2, int32_t>)>>
FOLLY_ALWAYS_INLINE void call(TResult& result, T1 a, T2 b) {
double resultDouble;
if constexpr (std::is_same_v<T1, double>) {
resultDouble = sanitizeInput(a) * b;
} else {
resultDouble = sanitizeInput(b) * a;
}

TResult min, max, maxResult;
if constexpr (std::is_same_v<TResult, int64_t>) {
min = kLongMin;
max = kLongMax;
maxResult = kMaxDoubleBelowInt64Max;
} else {
min = kIntegerMin;
max = kIntegerMax;
maxResult = kIntegerMax;
}

if LIKELY (
std::isfinite(resultDouble) && resultDouble >= kLongMin &&
resultDouble <= kMaxDoubleBelowInt64Max) {
result = int64_t(resultDouble);
std::isfinite(resultDouble) && resultDouble >= min &&
resultDouble <= maxResult) {
result = static_cast<TResult>(resultDouble);
} else {
result = resultDouble > 0 ? kLongMax : kLongMin;
result = resultDouble > 0 ? max : min;
}
}
};
Expand All @@ -123,9 +140,14 @@ struct DivideFunction {
}
};

// Divide function for IntervalDayTime / Double and IntervalYearMonth / Double.
template <typename T>
struct IntervalDivideFunction {
FOLLY_ALWAYS_INLINE void call(int64_t& result, int64_t a, double b)
template <
typename TResult,
typename = std::enable_if_t<
std::is_same_v<TResult, int64_t> || std::is_same_v<TResult, int32_t>>>
FOLLY_ALWAYS_INLINE void call(TResult& result, TResult a, double b)
// Depend on compiler have correct behaviour for divide by zero
#if defined(__has_feature)
#if __has_feature(__address_sanitizer__)
Expand All @@ -134,17 +156,28 @@ struct IntervalDivideFunction {
#endif
#endif
{
TResult min, max, maxResult;
if constexpr (std::is_same_v<TResult, int64_t>) {
min = kLongMin;
max = kLongMax;
maxResult = kMaxDoubleBelowInt64Max;
} else {
min = kIntegerMin;
max = kIntegerMax;
maxResult = kIntegerMax;
}

if UNLIKELY (a == 0 || std::isnan(b) || !std::isfinite(b)) {
result = 0;
return;
}
double resultDouble = a / b;
if LIKELY (
std::isfinite(resultDouble) && resultDouble >= kLongMin &&
resultDouble <= kMaxDoubleBelowInt64Max) {
result = int64_t(resultDouble);
std::isfinite(resultDouble) && resultDouble >= min &&
resultDouble <= maxResult) {
result = static_cast<TResult>(resultDouble);
} else {
result = resultDouble > 0 ? kLongMax : kLongMin;
result = resultDouble > 0 ? max : min;
}
}
};
Expand Down
35 changes: 35 additions & 0 deletions velox/functions/prestosql/registration/MathematicalOperatorsRegistration.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,12 +28,22 @@ void registerMathOperators(const std::string& prefix = "") {
IntervalDayTime,
IntervalDayTime,
IntervalDayTime>({prefix + "plus"});
registerFunction<
PlusFunction,
IntervalYearMonth,
IntervalYearMonth,
IntervalYearMonth>({prefix + "plus"});
registerBinaryFloatingPoint<MinusFunction>({prefix + "minus"});
registerFunction<
MinusFunction,
IntervalDayTime,
IntervalDayTime,
IntervalDayTime>({prefix + "minus"});
registerFunction<
MinusFunction,
IntervalYearMonth,
IntervalYearMonth,
IntervalYearMonth>({prefix + "minus"});
registerBinaryFloatingPoint<MultiplyFunction>({prefix + "multiply"});
registerFunction<MultiplyFunction, IntervalDayTime, IntervalDayTime, int64_t>(
{prefix + "multiply"});
Expand All @@ -49,12 +59,37 @@ void registerMathOperators(const std::string& prefix = "") {
IntervalDayTime,
double,
IntervalDayTime>({prefix + "multiply"});
registerFunction<
MultiplyFunction,
IntervalYearMonth,
IntervalYearMonth,
int32_t>({prefix + "multiply"});
registerFunction<
MultiplyFunction,
IntervalYearMonth,
int32_t,
IntervalYearMonth>({prefix + "multiply"});
registerFunction<
IntervalMultiplyFunction,
IntervalYearMonth,
IntervalYearMonth,
double>({prefix + "multiply"});
registerFunction<
IntervalMultiplyFunction,
IntervalYearMonth,
double,
IntervalYearMonth>({prefix + "multiply"});
registerBinaryFloatingPoint<DivideFunction>({prefix + "divide"});
registerFunction<
IntervalDivideFunction,
IntervalDayTime,
IntervalDayTime,
double>({prefix + "divide"});
registerFunction<
IntervalDivideFunction,
IntervalYearMonth,
IntervalYearMonth,
double>({prefix + "divide"});
registerBinaryFloatingPoint<ModulusFunction>({prefix + "mod"});
}

Expand Down
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