ClickHouse/dbms/DataTypes/DataTypesNumber.h

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#pragma once
#include <type_traits>
2019-10-04 17:46:36 +00:00
#include <Core/Field.h>
#include <DataTypes/DataTypeNumberBase.h>
namespace DB
{
template <typename T>
class DataTypeNumber final : public DataTypeNumberBase<T>
{
bool equals(const IDataType & rhs) const override { return typeid(rhs) == typeid(*this); }
bool canBeUsedAsVersion() const override { return true; }
bool isSummable() const override { return true; }
bool canBeUsedInBitOperations() const override { return true; }
bool canBeUsedInBooleanContext() const override { return true; }
bool canBeInsideNullable() const override { return true; }
bool canBePromoted() const override { return true; }
DataTypePtr promoteNumericType() const override
{
using PromotedType = DataTypeNumber<NearestFieldType<T>>;
return std::make_shared<PromotedType>();
}
};
using DataTypeUInt8 = DataTypeNumber<UInt8>;
using DataTypeUInt16 = DataTypeNumber<UInt16>;
using DataTypeUInt32 = DataTypeNumber<UInt32>;
using DataTypeUInt64 = DataTypeNumber<UInt64>;
using DataTypeInt8 = DataTypeNumber<Int8>;
using DataTypeInt16 = DataTypeNumber<Int16>;
using DataTypeInt32 = DataTypeNumber<Int32>;
using DataTypeInt64 = DataTypeNumber<Int64>;
using DataTypeFloat32 = DataTypeNumber<Float32>;
using DataTypeFloat64 = DataTypeNumber<Float64>;
}