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https://github.com/ClickHouse/ClickHouse.git
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1045 lines
38 KiB
C++
1045 lines
38 KiB
C++
#pragma once
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#include <DB/DataTypes/DataTypesNumberFixed.h>
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#include <DB/DataTypes/DataTypeDate.h>
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#include <DB/DataTypes/DataTypeDateTime.h>
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#include <DB/Functions/IFunction.h>
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#include <DB/Functions/NumberTraits.h>
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#include <DB/Core/FieldVisitors.h>
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namespace DB
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{
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/** Арифметические функции: +, -, *, /, %,
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* intDiv (целочисленное деление), унарный минус.
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* Битовые функции: |, &, ^, ~.
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*/
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template<typename A, typename B, typename Op, typename ResultType_ = typename Op::ResultType>
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struct BinaryOperationImplBase
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{
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typedef ResultType_ ResultType;
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static void vector_vector(const PODArray<A> & a, const PODArray<B> & b, PODArray<ResultType> & c)
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{
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size_t size = a.size();
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for (size_t i = 0; i < size; ++i)
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c[i] = Op::template apply<ResultType>(a[i], b[i]);
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}
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static void vector_constant(const PODArray<A> & a, B b, PODArray<ResultType> & c)
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{
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size_t size = a.size();
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for (size_t i = 0; i < size; ++i)
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c[i] = Op::template apply<ResultType>(a[i], b);
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}
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static void constant_vector(A a, const PODArray<B> & b, PODArray<ResultType> & c)
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{
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size_t size = b.size();
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for (size_t i = 0; i < size; ++i)
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c[i] = Op::template apply<ResultType>(a, b[i]);
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}
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static void constant_constant(A a, B b, ResultType & c)
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{
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c = Op::template apply<ResultType>(a, b);
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}
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};
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template<typename A, typename B, typename Op, typename ResultType = typename Op::ResultType>
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struct BinaryOperationImpl : BinaryOperationImplBase<A, B, Op, ResultType>
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{
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};
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template<typename A, typename Op>
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struct UnaryOperationImpl
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{
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typedef typename Op::ResultType ResultType;
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static void vector(const PODArray<A> & a, PODArray<ResultType> & c)
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{
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size_t size = a.size();
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for (size_t i = 0; i < size; ++i)
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c[i] = Op::apply(a[i]);
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}
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static void constant(A a, ResultType & c)
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{
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c = Op::apply(a);
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}
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};
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template<typename A, typename B>
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struct PlusImpl
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{
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typedef typename NumberTraits::ResultOfAdditionMultiplication<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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/// Далее везде, static_cast - чтобы не было неправильного результата в выражениях вида Int64 c = UInt32(a) * Int32(-1).
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return static_cast<Result>(a) + b;
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}
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};
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template<typename A, typename B>
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struct MultiplyImpl
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{
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typedef typename NumberTraits::ResultOfAdditionMultiplication<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a) * b;
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}
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};
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template<typename A, typename B>
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struct MinusImpl
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{
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typedef typename NumberTraits::ResultOfSubtraction<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a) - b;
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}
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};
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template<typename A, typename B>
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struct DivideFloatingImpl
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{
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typedef typename NumberTraits::ResultOfFloatingPointDivision<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a) / b;
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}
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};
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wsign-compare"
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template <typename A, typename B>
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inline void throwIfDivisionLeadsToFPE(A a, B b)
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{
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/// Возможно, лучше вместо проверок использовать siglongjmp?
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if (unlikely(b == 0))
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throw Exception("Division by zero", ErrorCodes::ILLEGAL_DIVISION);
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/// http://avva.livejournal.com/2548306.html
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if (unlikely(std::is_signed<A>::value && std::is_signed<B>::value && a == std::numeric_limits<A>::min() && b == -1))
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throw Exception("Division of minimal signed number by minus one", ErrorCodes::ILLEGAL_DIVISION);
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}
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template <typename A, typename B>
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inline bool divisionLeadsToFPE(A a, B b)
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{
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/// Возможно, лучше вместо проверок использовать siglongjmp?
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if (unlikely(b == 0))
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return true;
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/// http://avva.livejournal.com/2548306.html
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if (unlikely(std::is_signed<A>::value && std::is_signed<B>::value && a == std::numeric_limits<A>::min() && b == -1))
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return true;
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return false;
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}
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#pragma GCC diagnostic pop
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template<typename A, typename B>
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struct DivideIntegralImpl
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{
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typedef typename NumberTraits::ResultOfIntegerDivision<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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throwIfDivisionLeadsToFPE(a, b);
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return static_cast<Result>(a) / b;
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}
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};
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template<typename A, typename B>
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struct DivideIntegralOrZeroImpl
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{
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typedef typename NumberTraits::ResultOfIntegerDivision<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return unlikely(divisionLeadsToFPE(a, b)) ? 0 : static_cast<Result>(a) / b;
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}
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};
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template<typename A, typename B>
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struct ModuloImpl
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{
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typedef typename NumberTraits::ResultOfModulo<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<A>::Type(a), typename NumberTraits::ToInteger<A>::Type(b));
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return typename NumberTraits::ToInteger<A>::Type(a)
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% typename NumberTraits::ToInteger<A>::Type(b);
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}
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};
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template<typename A, typename B>
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struct BitAndImpl
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{
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typedef typename NumberTraits::ResultOfBit<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a)
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& static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct BitOrImpl
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{
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typedef typename NumberTraits::ResultOfBit<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a)
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| static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct BitXorImpl
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{
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typedef typename NumberTraits::ResultOfBit<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a)
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^ static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct BitShiftLeftImpl
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{
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typedef typename NumberTraits::ResultOfBit<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a)
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<< static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct BitShiftRightImpl
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{
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typedef typename NumberTraits::ResultOfBit<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a)
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>> static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct LeastImpl
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{
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typedef typename NumberTraits::ResultOfIf<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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/** gcc 4.9.2 успешно векторизует цикл из этой функции. */
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return static_cast<Result>(a) < static_cast<Result>(b) ? static_cast<Result>(a) : static_cast<Result>(b);
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}
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};
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template<typename A, typename B>
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struct GreatestImpl
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{
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typedef typename NumberTraits::ResultOfIf<A, B>::Type ResultType;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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return static_cast<Result>(a) > static_cast<Result>(b) ? static_cast<Result>(a) : static_cast<Result>(b);
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}
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};
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template<typename A>
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struct NegateImpl
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{
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typedef typename NumberTraits::ResultOfNegate<A>::Type ResultType;
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static inline ResultType apply(A a)
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{
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return -static_cast<ResultType>(a);
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}
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};
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template<typename A>
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struct BitNotImpl
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{
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typedef typename NumberTraits::ResultOfBitNot<A>::Type ResultType;
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static inline ResultType apply(A a)
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{
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return ~static_cast<ResultType>(a);
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}
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};
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template<typename A>
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struct AbsImpl
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{
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typedef typename NumberTraits::ResultOfAbs<A>::Type ResultType;
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template<typename T = A>
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static inline ResultType apply(T a,
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typename std::enable_if<std::is_integral<T>::value && std::is_signed<T>::value, void>::type * = nullptr)
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{
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return a < 0 ? static_cast<ResultType>(~a) + 1 : a;
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}
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template<typename T = A>
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static inline ResultType apply(T a,
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typename std::enable_if<std::is_integral<T>::value && std::is_unsigned<T>::value, void>::type * = nullptr)
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{
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return static_cast<ResultType>(a);
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}
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template<typename T = A>
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static inline ResultType apply(T a, typename std::enable_if<std::is_floating_point<T>::value, void>::type * = nullptr)
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{
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return static_cast<ResultType>(std::abs(a));
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}
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};
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/// this one is just for convenience
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template <bool B, typename T1, typename T2> using If = typename std::conditional<B, T1, T2>::type;
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/// these ones for better semantics
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template <typename T> using Then = T;
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template <typename T> using Else = T;
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/// Used to indicate undefined operation
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struct InvalidType;
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template <>
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struct DataTypeFromFieldType<NumberTraits::Error>
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{
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using Type = InvalidType;
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};
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template <typename DataType> struct IsIntegral { static constexpr auto value = false; };
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template <> struct IsIntegral<DataTypeUInt8> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeUInt16> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeUInt32> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeUInt64> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeInt8> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeInt16> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeInt32> { static constexpr auto value = true; };
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template <> struct IsIntegral<DataTypeInt64> { static constexpr auto value = true; };
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template <typename DataType> struct IsFloating { static constexpr auto value = false; };
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template <> struct IsFloating<DataTypeFloat32> { static constexpr auto value = true; };
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template <> struct IsFloating<DataTypeFloat64> { static constexpr auto value = true; };
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template <typename DataType> struct IsNumeric
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{
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static constexpr auto value = IsIntegral<DataType>::value || IsFloating<DataType>::value;
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};
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template <typename DataType> struct IsDateOrDateTime { static constexpr auto value = false; };
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template <> struct IsDateOrDateTime<DataTypeDate> { static constexpr auto value = true; };
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template <> struct IsDateOrDateTime<DataTypeDateTime> { static constexpr auto value = true; };
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/** Returns appropriate result type for binary operator on dates (or datetimes):
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* Date + Integral -> Date
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* Integral + Date -> Date
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* Date - Date -> Int32
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* Date - Integral -> Date
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* least(Date, Date) -> Date
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* greatest(Date, Date) -> Date
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* All other operations are not defined and return InvalidType, operations on
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* distinct date types are also undefined (e.g. DataTypeDate - DataTypeDateTime) */
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template <template <typename, typename> class Operation, typename LeftDataType, typename RightDataType>
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struct DateBinaryOperationTraits
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{
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using T0 = typename LeftDataType::FieldType;
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using T1 = typename RightDataType::FieldType;
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using Op = Operation<T0, T1>;
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using ResultDataType =
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If<std::is_same<Op, PlusImpl<T0, T1>>::value,
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Then<
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If<IsDateOrDateTime<LeftDataType>::value && IsIntegral<RightDataType>::value,
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Then<LeftDataType>,
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Else<
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If<IsIntegral<LeftDataType>::value && IsDateOrDateTime<RightDataType>::value,
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Then<RightDataType>,
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Else<InvalidType>
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>
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>
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>
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>,
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Else<
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If<std::is_same<Op, MinusImpl<T0, T1>>::value,
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Then<
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If<IsDateOrDateTime<LeftDataType>::value,
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Then<
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If<std::is_same<LeftDataType, RightDataType>::value,
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Then<DataTypeInt32>,
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Else<
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If<IsIntegral<RightDataType>::value,
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Then<LeftDataType>,
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Else<InvalidType>
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>
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>
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>
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>,
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Else<InvalidType>
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>
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>,
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Else<
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If<std::is_same<T0, T1>::value
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&& (std::is_same<Op, LeastImpl<T0, T1>>::value || std::is_same<Op, GreatestImpl<T0, T1>>::value),
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Then<LeftDataType>,
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Else<InvalidType>
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>
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>
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>
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>
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>;
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};
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/// Decides among date and numeric operations
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template <template <typename, typename> class Operation, typename LeftDataType, typename RightDataType>
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struct BinaryOperationTraits
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{
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using ResultDataType =
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If<IsDateOrDateTime<LeftDataType>::value || IsDateOrDateTime<RightDataType>::value,
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Then<
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typename DateBinaryOperationTraits<
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Operation, LeftDataType, RightDataType
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>::ResultDataType
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>,
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Else<
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typename DataTypeFromFieldType<
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typename Operation<
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typename LeftDataType::FieldType,
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typename RightDataType::FieldType
|
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>::ResultType
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>::Type
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>
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>;
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};
|
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|
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|
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template <template <typename, typename> class Op, typename Name>
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class FunctionBinaryArithmetic : public IFunction
|
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{
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public:
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static constexpr auto name = Name::name;
|
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static IFunction * create(const Context & context) { return new FunctionBinaryArithmetic; }
|
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|
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private:
|
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/// Overload for InvalidType
|
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template <typename ResultDataType,
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typename std::enable_if<std::is_same<ResultDataType, InvalidType>::value>::type * = nullptr>
|
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bool checkRightTypeImpl(DataTypePtr & type_res) const
|
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{
|
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return false;
|
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}
|
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|
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/// Overload for well-defined operations
|
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template <typename ResultDataType,
|
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typename std::enable_if<!std::is_same<ResultDataType, InvalidType>::value>::type * = nullptr>
|
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bool checkRightTypeImpl(DataTypePtr & type_res) const
|
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{
|
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type_res = new ResultDataType;
|
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return true;
|
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}
|
||
|
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template <typename LeftDataType, typename RightDataType>
|
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bool checkRightType(const DataTypes & arguments, DataTypePtr & type_res) const
|
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{
|
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using ResultDataType = typename BinaryOperationTraits<Op, LeftDataType, RightDataType>::ResultDataType;
|
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|
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if (typeid_cast<const RightDataType *>(&*arguments[1]))
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return checkRightTypeImpl<ResultDataType>(type_res);
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|
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return false;
|
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}
|
||
|
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template <typename T0>
|
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bool checkLeftType(const DataTypes & arguments, DataTypePtr & type_res) const
|
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{
|
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if (typeid_cast<const T0 *>(&*arguments[0]))
|
||
{
|
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if ( checkRightType<T0, DataTypeDate>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeDateTime>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeUInt8>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeUInt16>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeUInt32>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeUInt64>(arguments, type_res)
|
||
|| checkRightType<T0, DataTypeInt8>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeInt16>(arguments, type_res)
|
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|| checkRightType<T0, DataTypeInt32>(arguments, type_res)
|
||
|| checkRightType<T0, DataTypeInt64>(arguments, type_res)
|
||
|| checkRightType<T0, DataTypeFloat32>(arguments, type_res)
|
||
|| checkRightType<T0, DataTypeFloat64>(arguments, type_res))
|
||
return true;
|
||
else
|
||
throw Exception("Illegal type " + arguments[1]->getName() + " of second argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Overload for date operations
|
||
template <typename LeftDataType, typename RightDataType, typename ColumnType>
|
||
bool executeRightType(Block & block, const ColumnNumbers & arguments, const size_t result, const ColumnType * col_left)
|
||
{
|
||
if (!typeid_cast<const RightDataType *>(block.getByPosition(arguments[1]).type.get()))
|
||
return false;
|
||
|
||
using ResultDataType = typename BinaryOperationTraits<Op, LeftDataType, RightDataType>::ResultDataType;
|
||
|
||
return executeRightTypeDispatch<LeftDataType, RightDataType, ResultDataType>(
|
||
block, arguments, result, col_left);
|
||
}
|
||
|
||
/// Overload for InvalidType
|
||
template <typename LeftDataType, typename RightDataType, typename ResultDataType, typename ColumnType,
|
||
typename std::enable_if<std::is_same<ResultDataType, InvalidType>::value>::type * = nullptr>
|
||
bool executeRightTypeDispatch(Block & block, const ColumnNumbers & arguments, const size_t result,
|
||
const ColumnType * col_left)
|
||
{
|
||
throw Exception("Types " + TypeName<typename LeftDataType::FieldType>::get()
|
||
+ " and " + TypeName<typename LeftDataType::FieldType>::get()
|
||
+ " are incompatible for function " + getName() + " or not upscaleable to common type", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
|
||
}
|
||
|
||
/// Overload for well-defined operations
|
||
template <typename LeftDataType, typename RightDataType, typename ResultDataType, typename ColumnType,
|
||
typename std::enable_if<!std::is_same<ResultDataType, InvalidType>::value>::type * = nullptr>
|
||
bool executeRightTypeDispatch(Block & block, const ColumnNumbers & arguments, const size_t result,
|
||
const ColumnType * col_left)
|
||
{
|
||
using T0 = typename LeftDataType::FieldType;
|
||
using T1 = typename RightDataType::FieldType;
|
||
using ResultType = typename ResultDataType::FieldType;
|
||
|
||
return executeRightTypeImpl<T0, T1, ResultType>(block, arguments, result, col_left);
|
||
}
|
||
|
||
/// ColumnVector overload
|
||
template <typename T0, typename T1, typename ResultType = typename Op<T0, T1>::ResultType>
|
||
bool executeRightTypeImpl(Block & block, const ColumnNumbers & arguments, size_t result, const ColumnVector<T0> * col_left)
|
||
{
|
||
if (auto col_right = typeid_cast<const ColumnVector<T1> *>(block.getByPosition(arguments[1]).column.get()))
|
||
{
|
||
auto col_res = new ColumnVector<ResultType>;
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
auto & vec_res = col_res->getData();
|
||
vec_res.resize(col_left->getData().size());
|
||
BinaryOperationImpl<T0, T1, Op<T0, T1>, ResultType>::vector_vector(col_left->getData(), col_right->getData(), vec_res);
|
||
|
||
return true;
|
||
}
|
||
else if (auto col_right = typeid_cast<const ColumnConst<T1> *>(block.getByPosition(arguments[1]).column.get()))
|
||
{
|
||
auto col_res = new ColumnVector<ResultType>;
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
auto & vec_res = col_res->getData();
|
||
vec_res.resize(col_left->getData().size());
|
||
BinaryOperationImpl<T0, T1, Op<T0, T1>, ResultType>::vector_constant(col_left->getData(), col_right->getData(), vec_res);
|
||
|
||
return true;
|
||
}
|
||
|
||
throw Exception("Logical error: unexpected type of column", ErrorCodes::LOGICAL_ERROR);
|
||
}
|
||
|
||
/// ColumnConst overload
|
||
template <typename T0, typename T1, typename ResultType = typename Op<T0, T1>::ResultType>
|
||
bool executeRightTypeImpl(Block & block, const ColumnNumbers & arguments, size_t result, const ColumnConst<T0> * col_left)
|
||
{
|
||
if (auto col_right = typeid_cast<const ColumnVector<T1> *>(block.getByPosition(arguments[1]).column.get()))
|
||
{
|
||
auto col_res = new ColumnVector<ResultType>;
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
auto & vec_res = col_res->getData();
|
||
vec_res.resize(col_left->size());
|
||
BinaryOperationImpl<T0, T1, Op<T0, T1>, ResultType>::constant_vector(col_left->getData(), col_right->getData(), vec_res);
|
||
|
||
return true;
|
||
}
|
||
else if (auto col_right = typeid_cast<const ColumnConst<T1> *>(block.getByPosition(arguments[1]).column.get()))
|
||
{
|
||
ResultType res = 0;
|
||
BinaryOperationImpl<T0, T1, Op<T0, T1>, ResultType>::constant_constant(col_left->getData(), col_right->getData(), res);
|
||
|
||
auto col_res = new ColumnConst<ResultType>(col_left->size(), res);
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
template <typename LeftDataType>
|
||
bool executeLeftType(Block & block, const ColumnNumbers & arguments, const size_t result)
|
||
{
|
||
if (!typeid_cast<const LeftDataType *>(block.getByPosition(arguments[0]).type.get()))
|
||
return false;
|
||
|
||
using T0 = typename LeftDataType::FieldType;
|
||
|
||
if ( executeLeftTypeImpl<LeftDataType, ColumnVector<T0>>(block, arguments, result)
|
||
|| executeLeftTypeImpl<LeftDataType, ColumnConst<T0>>(block, arguments, result))
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
template <typename LeftDataType, typename ColumnType>
|
||
bool executeLeftTypeImpl(Block & block, const ColumnNumbers & arguments, const size_t result)
|
||
{
|
||
if (auto col_left = typeid_cast<const ColumnType *>(block.getByPosition(arguments[0]).column.get()))
|
||
{
|
||
if ( executeRightType<LeftDataType, DataTypeDate>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeDateTime>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeUInt8>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeUInt16>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeUInt32>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeUInt64>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeInt8>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeInt16>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeInt32>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeInt64>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeFloat32>(block, arguments, result, col_left)
|
||
|| executeRightType<LeftDataType, DataTypeFloat64>(block, arguments, result, col_left))
|
||
return true;
|
||
else
|
||
throw Exception("Illegal column " + block.getByPosition(arguments[1]).column->getName()
|
||
+ " of second argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_COLUMN);
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
public:
|
||
/// Получить имя функции.
|
||
String getName() const override
|
||
{
|
||
return name;
|
||
}
|
||
|
||
/// Получить типы результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
|
||
DataTypePtr getReturnType(const DataTypes & arguments) const override
|
||
{
|
||
if (arguments.size() != 2)
|
||
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
|
||
+ toString(arguments.size()) + ", should be 2.",
|
||
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
|
||
|
||
DataTypePtr type_res;
|
||
|
||
if (!( checkLeftType<DataTypeDate>(arguments, type_res)
|
||
|| checkLeftType<DataTypeDateTime>(arguments, type_res)
|
||
|| checkLeftType<DataTypeUInt8>(arguments, type_res)
|
||
|| checkLeftType<DataTypeUInt16>(arguments, type_res)
|
||
|| checkLeftType<DataTypeUInt32>(arguments, type_res)
|
||
|| checkLeftType<DataTypeUInt64>(arguments, type_res)
|
||
|| checkLeftType<DataTypeInt8>(arguments, type_res)
|
||
|| checkLeftType<DataTypeInt16>(arguments, type_res)
|
||
|| checkLeftType<DataTypeInt32>(arguments, type_res)
|
||
|| checkLeftType<DataTypeInt64>(arguments, type_res)
|
||
|| checkLeftType<DataTypeFloat32>(arguments, type_res)
|
||
|| checkLeftType<DataTypeFloat64>(arguments, type_res)))
|
||
throw Exception("Illegal type " + arguments[0]->getName() + " of first argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
|
||
|
||
return type_res;
|
||
}
|
||
|
||
/// Выполнить функцию над блоком.
|
||
void execute(Block & block, const ColumnNumbers & arguments, size_t result) override
|
||
{
|
||
if (!( executeLeftType<DataTypeDate>(block, arguments, result)
|
||
|| executeLeftType<DataTypeDateTime>(block, arguments, result)
|
||
|| executeLeftType<DataTypeUInt8>(block, arguments, result)
|
||
|| executeLeftType<DataTypeUInt16>(block, arguments, result)
|
||
|| executeLeftType<DataTypeUInt32>(block, arguments, result)
|
||
|| executeLeftType<DataTypeUInt64>(block, arguments, result)
|
||
|| executeLeftType<DataTypeInt8>(block, arguments, result)
|
||
|| executeLeftType<DataTypeInt16>(block, arguments, result)
|
||
|| executeLeftType<DataTypeInt32>(block, arguments, result)
|
||
|| executeLeftType<DataTypeInt64>(block, arguments, result)
|
||
|| executeLeftType<DataTypeFloat32>(block, arguments, result)
|
||
|| executeLeftType<DataTypeFloat64>(block, arguments, result)))
|
||
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
|
||
+ " of first argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_COLUMN);
|
||
}
|
||
};
|
||
|
||
|
||
template <typename FunctionName>
|
||
struct FunctionUnaryArithmeticMonotonicity;
|
||
|
||
|
||
template <template <typename> class Op, typename Name>
|
||
class FunctionUnaryArithmetic : public IFunction
|
||
{
|
||
public:
|
||
static constexpr auto name = Name::name;
|
||
static IFunction * create(const Context & context) { return new FunctionUnaryArithmetic; }
|
||
|
||
private:
|
||
template <typename T0>
|
||
bool checkType(const DataTypes & arguments, DataTypePtr & result) const
|
||
{
|
||
if (typeid_cast<const T0 *>(&*arguments[0]))
|
||
{
|
||
result = new typename DataTypeFromFieldType<
|
||
typename Op<typename T0::FieldType>::ResultType>::Type;
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
template <typename T0>
|
||
bool executeType(Block & block, const ColumnNumbers & arguments, size_t result)
|
||
{
|
||
if (const ColumnVector<T0> * col = typeid_cast<const ColumnVector<T0> *>(&*block.getByPosition(arguments[0]).column))
|
||
{
|
||
typedef typename Op<T0>::ResultType ResultType;
|
||
|
||
ColumnVector<ResultType> * col_res = new ColumnVector<ResultType>;
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
typename ColumnVector<ResultType>::Container_t & vec_res = col_res->getData();
|
||
vec_res.resize(col->getData().size());
|
||
UnaryOperationImpl<T0, Op<T0> >::vector(col->getData(), vec_res);
|
||
|
||
return true;
|
||
}
|
||
else if (const ColumnConst<T0> * col = typeid_cast<const ColumnConst<T0> *>(&*block.getByPosition(arguments[0]).column))
|
||
{
|
||
typedef typename Op<T0>::ResultType ResultType;
|
||
|
||
ResultType res = 0;
|
||
UnaryOperationImpl<T0, Op<T0> >::constant(col->getData(), res);
|
||
|
||
ColumnConst<ResultType> * col_res = new ColumnConst<ResultType>(col->size(), res);
|
||
block.getByPosition(result).column = col_res;
|
||
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
public:
|
||
/// Получить имя функции.
|
||
String getName() const override
|
||
{
|
||
return name;
|
||
}
|
||
|
||
/// Получить типы результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
|
||
DataTypePtr getReturnType(const DataTypes & arguments) const override
|
||
{
|
||
if (arguments.size() != 1)
|
||
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
|
||
+ toString(arguments.size()) + ", should be 1.",
|
||
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
|
||
|
||
DataTypePtr result;
|
||
|
||
if (!( checkType<DataTypeUInt8>(arguments, result)
|
||
|| checkType<DataTypeUInt16>(arguments, result)
|
||
|| checkType<DataTypeUInt32>(arguments, result)
|
||
|| checkType<DataTypeUInt64>(arguments, result)
|
||
|| checkType<DataTypeInt8>(arguments, result)
|
||
|| checkType<DataTypeInt16>(arguments, result)
|
||
|| checkType<DataTypeInt32>(arguments, result)
|
||
|| checkType<DataTypeInt64>(arguments, result)
|
||
|| checkType<DataTypeFloat32>(arguments, result)
|
||
|| checkType<DataTypeFloat64>(arguments, result)))
|
||
throw Exception("Illegal type " + arguments[0]->getName() + " of argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
|
||
|
||
return result;
|
||
}
|
||
|
||
/// Выполнить функцию над блоком.
|
||
void execute(Block & block, const ColumnNumbers & arguments, size_t result) override
|
||
{
|
||
if (!( executeType<UInt8>(block, arguments, result)
|
||
|| executeType<UInt16>(block, arguments, result)
|
||
|| executeType<UInt32>(block, arguments, result)
|
||
|| executeType<UInt64>(block, arguments, result)
|
||
|| executeType<Int8>(block, arguments, result)
|
||
|| executeType<Int16>(block, arguments, result)
|
||
|| executeType<Int32>(block, arguments, result)
|
||
|| executeType<Int64>(block, arguments, result)
|
||
|| executeType<Float32>(block, arguments, result)
|
||
|| executeType<Float64>(block, arguments, result)))
|
||
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
|
||
+ " of argument of function " + getName(),
|
||
ErrorCodes::ILLEGAL_COLUMN);
|
||
}
|
||
|
||
bool hasInformationAboutMonotonicity() const override
|
||
{
|
||
return FunctionUnaryArithmeticMonotonicity<Name>::has();
|
||
}
|
||
|
||
Monotonicity getMonotonicityForRange(const IDataType & type, const Field & left, const Field & right) const override
|
||
{
|
||
return FunctionUnaryArithmeticMonotonicity<Name>::get(left, right);
|
||
}
|
||
};
|
||
|
||
|
||
struct NamePlus { static constexpr auto name = "plus"; };
|
||
struct NameMinus { static constexpr auto name = "minus"; };
|
||
struct NameMultiply { static constexpr auto name = "multiply"; };
|
||
struct NameDivideFloating { static constexpr auto name = "divide"; };
|
||
struct NameDivideIntegral { static constexpr auto name = "intDiv"; };
|
||
struct NameDivideIntegralOrZero { static constexpr auto name = "intDivOrZero"; };
|
||
struct NameModulo { static constexpr auto name = "modulo"; };
|
||
struct NameNegate { static constexpr auto name = "negate"; };
|
||
struct NameAbs { static constexpr auto name = "abs"; };
|
||
struct NameBitAnd { static constexpr auto name = "bitAnd"; };
|
||
struct NameBitOr { static constexpr auto name = "bitOr"; };
|
||
struct NameBitXor { static constexpr auto name = "bitXor"; };
|
||
struct NameBitNot { static constexpr auto name = "bitNot"; };
|
||
struct NameBitShiftLeft { static constexpr auto name = "bitShiftLeft"; };
|
||
struct NameBitShiftRight { static constexpr auto name = "bitShiftRight"; };
|
||
struct NameLeast { static constexpr auto name = "least"; };
|
||
struct NameGreatest { static constexpr auto name = "greatest"; };
|
||
|
||
typedef FunctionBinaryArithmetic<PlusImpl, NamePlus> FunctionPlus;
|
||
typedef FunctionBinaryArithmetic<MinusImpl, NameMinus> FunctionMinus;
|
||
typedef FunctionBinaryArithmetic<MultiplyImpl, NameMultiply> FunctionMultiply;
|
||
typedef FunctionBinaryArithmetic<DivideFloatingImpl, NameDivideFloating> FunctionDivideFloating;
|
||
typedef FunctionBinaryArithmetic<DivideIntegralImpl, NameDivideIntegral> FunctionDivideIntegral;
|
||
typedef FunctionBinaryArithmetic<DivideIntegralOrZeroImpl, NameDivideIntegralOrZero> FunctionDivideIntegralOrZero;
|
||
typedef FunctionBinaryArithmetic<ModuloImpl, NameModulo> FunctionModulo;
|
||
typedef FunctionUnaryArithmetic<NegateImpl, NameNegate> FunctionNegate;
|
||
typedef FunctionUnaryArithmetic<AbsImpl, NameAbs> FunctionAbs;
|
||
typedef FunctionBinaryArithmetic<BitAndImpl, NameBitAnd> FunctionBitAnd;
|
||
typedef FunctionBinaryArithmetic<BitOrImpl, NameBitOr> FunctionBitOr;
|
||
typedef FunctionBinaryArithmetic<BitXorImpl, NameBitXor> FunctionBitXor;
|
||
typedef FunctionUnaryArithmetic<BitNotImpl, NameBitNot> FunctionBitNot;
|
||
typedef FunctionBinaryArithmetic<BitShiftLeftImpl, NameBitShiftLeft> FunctionBitShiftLeft;
|
||
typedef FunctionBinaryArithmetic<BitShiftRightImpl, NameBitShiftRight> FunctionBitShiftRight;
|
||
typedef FunctionBinaryArithmetic<LeastImpl, NameLeast> FunctionLeast;
|
||
typedef FunctionBinaryArithmetic<GreatestImpl, NameGreatest> FunctionGreatest;
|
||
|
||
/// Свойства монотонности для некоторых функций.
|
||
|
||
template <> struct FunctionUnaryArithmeticMonotonicity<NameNegate>
|
||
{
|
||
static bool has() { return true; }
|
||
static IFunction::Monotonicity get(const Field & left, const Field & right)
|
||
{
|
||
return { true, false };
|
||
}
|
||
};
|
||
|
||
template <> struct FunctionUnaryArithmeticMonotonicity<NameAbs>
|
||
{
|
||
static bool has() { return true; }
|
||
static IFunction::Monotonicity get(const Field & left, const Field & right)
|
||
{
|
||
Float64 left_float = left.isNull() ? -std::numeric_limits<Float64>::infinity() : apply_visitor(FieldVisitorConvertToNumber<Float64>(), left);
|
||
Float64 right_float = right.isNull() ? std::numeric_limits<Float64>::infinity() : apply_visitor(FieldVisitorConvertToNumber<Float64>(), right);
|
||
|
||
if ((left_float < 0 && right_float > 0) || (left_float > 0 && right_float < 0))
|
||
return {};
|
||
|
||
return { true, (left_float > 0) };
|
||
}
|
||
};
|
||
|
||
template <> struct FunctionUnaryArithmeticMonotonicity<NameBitNot>
|
||
{
|
||
static bool has() { return false; }
|
||
static IFunction::Monotonicity get(const Field & left, const Field & right)
|
||
{
|
||
return {};
|
||
}
|
||
};
|
||
|
||
|
||
/// Оптимизации для целочисленного деления на константу.
|
||
|
||
#define LIBDIVIDE_USE_SSE2 1
|
||
#include <libdivide.h>
|
||
|
||
|
||
template <typename A, typename B>
|
||
struct DivideIntegralByConstantImpl
|
||
: BinaryOperationImplBase<A, B, DivideIntegralImpl<A, B>>
|
||
{
|
||
typedef typename DivideIntegralImpl<A, B>::ResultType ResultType;
|
||
|
||
static void vector_constant(const PODArray<A> & a, B b, PODArray<ResultType> & c)
|
||
{
|
||
if (unlikely(b == 0))
|
||
throw Exception("Division by zero", ErrorCodes::ILLEGAL_DIVISION);
|
||
|
||
#pragma GCC diagnostic push
|
||
#pragma GCC diagnostic ignored "-Wsign-compare"
|
||
|
||
if (unlikely(std::is_signed<B>::value && b == -1))
|
||
{
|
||
size_t size = a.size();
|
||
for (size_t i = 0; i < size; ++i)
|
||
c[i] = -c[i];
|
||
return;
|
||
}
|
||
|
||
#pragma GCC diagnostic pop
|
||
|
||
libdivide::divider<A> divider(b);
|
||
|
||
size_t size = a.size();
|
||
const A * a_pos = &a[0];
|
||
const A * a_end = a_pos + size;
|
||
ResultType * c_pos = &c[0];
|
||
static constexpr size_t values_per_sse_register = 16 / sizeof(A);
|
||
const A * a_end_sse = a_pos + size / values_per_sse_register * values_per_sse_register;
|
||
|
||
while (a_pos < a_end_sse)
|
||
{
|
||
_mm_storeu_si128(reinterpret_cast<__m128i *>(c_pos),
|
||
_mm_loadu_si128(reinterpret_cast<const __m128i *>(a_pos)) / divider);
|
||
|
||
a_pos += values_per_sse_register;
|
||
c_pos += values_per_sse_register;
|
||
}
|
||
|
||
while (a_pos < a_end)
|
||
{
|
||
*c_pos = *a_pos / divider;
|
||
++a_pos;
|
||
++c_pos;
|
||
}
|
||
}
|
||
};
|
||
|
||
template <typename A, typename B>
|
||
struct ModuloByConstantImpl
|
||
: BinaryOperationImplBase<A, B, ModuloImpl<A, B>>
|
||
{
|
||
typedef typename ModuloImpl<A, B>::ResultType ResultType;
|
||
|
||
static void vector_constant(const PODArray<A> & a, B b, PODArray<ResultType> & c)
|
||
{
|
||
if (unlikely(b == 0))
|
||
throw Exception("Division by zero", ErrorCodes::ILLEGAL_DIVISION);
|
||
|
||
#pragma GCC diagnostic push
|
||
#pragma GCC diagnostic ignored "-Wsign-compare"
|
||
|
||
if (unlikely((std::is_signed<B>::value && b == -1) || b == 1))
|
||
{
|
||
size_t size = a.size();
|
||
for (size_t i = 0; i < size; ++i)
|
||
c[i] = 0;
|
||
return;
|
||
}
|
||
|
||
#pragma GCC diagnostic pop
|
||
|
||
libdivide::divider<A> divider(b);
|
||
|
||
/// Тут не удалось сделать так, чтобы SSE вариант из libdivide давал преимущество.
|
||
size_t size = a.size();
|
||
for (size_t i = 0; i < size; ++i)
|
||
c[i] = a[i] - (a[i] / divider) * b; /// NOTE: возможно, не сохраняется семантика деления с остатком отрицательных чисел.
|
||
}
|
||
};
|
||
|
||
|
||
/** Прописаны специализации для деления чисел типа UInt64 и UInt32 на числа той же знаковости.
|
||
* Можно дополнить до всех возможных комбинаций, но потребуется больше кода.
|
||
*/
|
||
|
||
template <> struct BinaryOperationImpl<UInt64, UInt8, DivideIntegralImpl<UInt64, UInt8>> : DivideIntegralByConstantImpl<UInt64, UInt8> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt16, DivideIntegralImpl<UInt64, UInt16>> : DivideIntegralByConstantImpl<UInt64, UInt16> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt32, DivideIntegralImpl<UInt64, UInt32>> : DivideIntegralByConstantImpl<UInt64, UInt32> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt64, DivideIntegralImpl<UInt64, UInt64>> : DivideIntegralByConstantImpl<UInt64, UInt64> {};
|
||
|
||
template <> struct BinaryOperationImpl<UInt32, UInt8, DivideIntegralImpl<UInt32, UInt8>> : DivideIntegralByConstantImpl<UInt32, UInt8> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt16, DivideIntegralImpl<UInt32, UInt16>> : DivideIntegralByConstantImpl<UInt32, UInt16> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt32, DivideIntegralImpl<UInt32, UInt32>> : DivideIntegralByConstantImpl<UInt32, UInt32> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt64, DivideIntegralImpl<UInt32, UInt64>> : DivideIntegralByConstantImpl<UInt32, UInt64> {};
|
||
|
||
template <> struct BinaryOperationImpl<Int64, Int8, DivideIntegralImpl<Int64, Int8>> : DivideIntegralByConstantImpl<Int64, Int8> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int16, DivideIntegralImpl<Int64, Int16>> : DivideIntegralByConstantImpl<Int64, Int16> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int32, DivideIntegralImpl<Int64, Int32>> : DivideIntegralByConstantImpl<Int64, Int32> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int64, DivideIntegralImpl<Int64, Int64>> : DivideIntegralByConstantImpl<Int64, Int64> {};
|
||
|
||
template <> struct BinaryOperationImpl<Int32, Int8, DivideIntegralImpl<Int32, Int8>> : DivideIntegralByConstantImpl<Int32, Int8> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int16, DivideIntegralImpl<Int32, Int16>> : DivideIntegralByConstantImpl<Int32, Int16> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int32, DivideIntegralImpl<Int32, Int32>> : DivideIntegralByConstantImpl<Int32, Int32> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int64, DivideIntegralImpl<Int32, Int64>> : DivideIntegralByConstantImpl<Int32, Int64> {};
|
||
|
||
|
||
template <> struct BinaryOperationImpl<UInt64, UInt8, ModuloImpl<UInt64, UInt8>> : ModuloByConstantImpl<UInt64, UInt8> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt16, ModuloImpl<UInt64, UInt16>> : ModuloByConstantImpl<UInt64, UInt16> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt32, ModuloImpl<UInt64, UInt32>> : ModuloByConstantImpl<UInt64, UInt32> {};
|
||
template <> struct BinaryOperationImpl<UInt64, UInt64, ModuloImpl<UInt64, UInt64>> : ModuloByConstantImpl<UInt64, UInt64> {};
|
||
|
||
template <> struct BinaryOperationImpl<UInt32, UInt8, ModuloImpl<UInt32, UInt8>> : ModuloByConstantImpl<UInt32, UInt8> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt16, ModuloImpl<UInt32, UInt16>> : ModuloByConstantImpl<UInt32, UInt16> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt32, ModuloImpl<UInt32, UInt32>> : ModuloByConstantImpl<UInt32, UInt32> {};
|
||
template <> struct BinaryOperationImpl<UInt32, UInt64, ModuloImpl<UInt32, UInt64>> : ModuloByConstantImpl<UInt32, UInt64> {};
|
||
|
||
template <> struct BinaryOperationImpl<Int64, Int8, ModuloImpl<Int64, Int8>> : ModuloByConstantImpl<Int64, Int8> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int16, ModuloImpl<Int64, Int16>> : ModuloByConstantImpl<Int64, Int16> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int32, ModuloImpl<Int64, Int32>> : ModuloByConstantImpl<Int64, Int32> {};
|
||
template <> struct BinaryOperationImpl<Int64, Int64, ModuloImpl<Int64, Int64>> : ModuloByConstantImpl<Int64, Int64> {};
|
||
|
||
template <> struct BinaryOperationImpl<Int32, Int8, ModuloImpl<Int32, Int8>> : ModuloByConstantImpl<Int32, Int8> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int16, ModuloImpl<Int32, Int16>> : ModuloByConstantImpl<Int32, Int16> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int32, ModuloImpl<Int32, Int32>> : ModuloByConstantImpl<Int32, Int32> {};
|
||
template <> struct BinaryOperationImpl<Int32, Int64, ModuloImpl<Int32, Int64>> : ModuloByConstantImpl<Int32, Int64> {};
|
||
|
||
}
|