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6d5bfc8c6f
* Better code [#CLICKHOUSE-2]. * Addition to prev. revision [#CLICKHOUSE-2]. * Addition to prev. revision [#CLICKHOUSE-2]. * Addition to prev. revision [#CLICKHOUSE-2].
117 lines
8.7 KiB
C++
117 lines
8.7 KiB
C++
#pragma once
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#include <DB/DataTypes/DataTypeDate.h>
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#include <DB/DataTypes/DataTypeDateTime.h>
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#include <DB/DataTypes/DataTypeString.h>
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#include <DB/DataTypes/DataTypeFixedString.h>
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#include <DB/DataTypes/DataTypesNumber.h>
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#include <DB/DataTypes/DataTypeEnum.h>
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#include <DB/AggregateFunctions/IAggregateFunction.h>
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namespace DB
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{
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/** Create an aggregate function with a numeric type in the template parameter, depending on the type of the argument.
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*/
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template <template <typename> class AggregateFunctionTemplate>
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static IAggregateFunction * createWithNumericType(const IDataType & argument_type)
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{
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if (typeid_cast<const DataTypeUInt8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8>;
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else if (typeid_cast<const DataTypeUInt16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16>;
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else if (typeid_cast<const DataTypeUInt32 *>(&argument_type)) return new AggregateFunctionTemplate<UInt32>;
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else if (typeid_cast<const DataTypeUInt64 *>(&argument_type)) return new AggregateFunctionTemplate<UInt64>;
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else if (typeid_cast<const DataTypeInt8 *>(&argument_type)) return new AggregateFunctionTemplate<Int8>;
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else if (typeid_cast<const DataTypeInt16 *>(&argument_type)) return new AggregateFunctionTemplate<Int16>;
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else if (typeid_cast<const DataTypeInt32 *>(&argument_type)) return new AggregateFunctionTemplate<Int32>;
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else if (typeid_cast<const DataTypeInt64 *>(&argument_type)) return new AggregateFunctionTemplate<Int64>;
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else if (typeid_cast<const DataTypeFloat32 *>(&argument_type)) return new AggregateFunctionTemplate<Float32>;
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else if (typeid_cast<const DataTypeFloat64 *>(&argument_type)) return new AggregateFunctionTemplate<Float64>;
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else if (typeid_cast<const DataTypeEnum8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8>;
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else if (typeid_cast<const DataTypeEnum16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16>;
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else
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return nullptr;
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}
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template <template <typename, typename> class AggregateFunctionTemplate, class Data>
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static IAggregateFunction * createWithNumericType(const IDataType & argument_type)
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{
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if (typeid_cast<const DataTypeUInt8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8, Data>;
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else if (typeid_cast<const DataTypeUInt16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16, Data>;
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else if (typeid_cast<const DataTypeUInt32 *>(&argument_type)) return new AggregateFunctionTemplate<UInt32, Data>;
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else if (typeid_cast<const DataTypeUInt64 *>(&argument_type)) return new AggregateFunctionTemplate<UInt64, Data>;
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else if (typeid_cast<const DataTypeInt8 *>(&argument_type)) return new AggregateFunctionTemplate<Int8, Data>;
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else if (typeid_cast<const DataTypeInt16 *>(&argument_type)) return new AggregateFunctionTemplate<Int16, Data>;
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else if (typeid_cast<const DataTypeInt32 *>(&argument_type)) return new AggregateFunctionTemplate<Int32, Data>;
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else if (typeid_cast<const DataTypeInt64 *>(&argument_type)) return new AggregateFunctionTemplate<Int64, Data>;
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else if (typeid_cast<const DataTypeFloat32 *>(&argument_type)) return new AggregateFunctionTemplate<Float32, Data>;
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else if (typeid_cast<const DataTypeFloat64 *>(&argument_type)) return new AggregateFunctionTemplate<Float64, Data>;
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else if (typeid_cast<const DataTypeEnum8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8, Data>;
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else if (typeid_cast<const DataTypeEnum16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16, Data>;
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else
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return nullptr;
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}
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template <template <typename, typename> class AggregateFunctionTemplate, template <typename> class Data>
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static IAggregateFunction * createWithNumericType(const IDataType & argument_type)
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{
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if (typeid_cast<const DataTypeUInt8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8, Data<UInt8> >;
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else if (typeid_cast<const DataTypeUInt16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16, Data<UInt16> >;
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else if (typeid_cast<const DataTypeUInt32 *>(&argument_type)) return new AggregateFunctionTemplate<UInt32, Data<UInt32> >;
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else if (typeid_cast<const DataTypeUInt64 *>(&argument_type)) return new AggregateFunctionTemplate<UInt64, Data<UInt64> >;
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else if (typeid_cast<const DataTypeInt8 *>(&argument_type)) return new AggregateFunctionTemplate<Int8, Data<Int8> >;
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else if (typeid_cast<const DataTypeInt16 *>(&argument_type)) return new AggregateFunctionTemplate<Int16, Data<Int16> >;
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else if (typeid_cast<const DataTypeInt32 *>(&argument_type)) return new AggregateFunctionTemplate<Int32, Data<Int32> >;
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else if (typeid_cast<const DataTypeInt64 *>(&argument_type)) return new AggregateFunctionTemplate<Int64, Data<Int64> >;
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else if (typeid_cast<const DataTypeFloat32 *>(&argument_type)) return new AggregateFunctionTemplate<Float32, Data<Float32> >;
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else if (typeid_cast<const DataTypeFloat64 *>(&argument_type)) return new AggregateFunctionTemplate<Float64, Data<Float64> >;
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else if (typeid_cast<const DataTypeEnum8 *>(&argument_type)) return new AggregateFunctionTemplate<UInt8, Data<UInt8> >;
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else if (typeid_cast<const DataTypeEnum16 *>(&argument_type)) return new AggregateFunctionTemplate<UInt16, Data<UInt16> >;
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else
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return nullptr;
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}
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/** For template with two arguments.
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*/
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template <typename FirstType, template <typename, typename> class AggregateFunctionTemplate>
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static IAggregateFunction * createWithTwoNumericTypesSecond(const IDataType & second_type)
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{
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if (typeid_cast<const DataTypeUInt8 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt8>;
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else if (typeid_cast<const DataTypeUInt16 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt16>;
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else if (typeid_cast<const DataTypeUInt32 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt32>;
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else if (typeid_cast<const DataTypeUInt64 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt64>;
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else if (typeid_cast<const DataTypeInt8 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Int8>;
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else if (typeid_cast<const DataTypeInt16 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Int16>;
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else if (typeid_cast<const DataTypeInt32 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Int32>;
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else if (typeid_cast<const DataTypeInt64 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Int64>;
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else if (typeid_cast<const DataTypeFloat32 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Float32>;
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else if (typeid_cast<const DataTypeFloat64 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, Float64>;
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else if (typeid_cast<const DataTypeEnum8 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt8>;
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else if (typeid_cast<const DataTypeEnum16 *>(&second_type)) return new AggregateFunctionTemplate<FirstType, UInt16>;
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else
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return nullptr;
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}
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template <template <typename, typename> class AggregateFunctionTemplate>
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static IAggregateFunction * createWithTwoNumericTypes(const IDataType & first_type, const IDataType & second_type)
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{
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if (typeid_cast<const DataTypeUInt8 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt8, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeUInt16 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt16, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeUInt32 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt32, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeUInt64 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt64, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeInt8 *>(&first_type)) return createWithTwoNumericTypesSecond<Int8, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeInt16 *>(&first_type)) return createWithTwoNumericTypesSecond<Int16, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeInt32 *>(&first_type)) return createWithTwoNumericTypesSecond<Int32, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeInt64 *>(&first_type)) return createWithTwoNumericTypesSecond<Int64, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeFloat32 *>(&first_type)) return createWithTwoNumericTypesSecond<Float32, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeFloat64 *>(&first_type)) return createWithTwoNumericTypesSecond<Float64, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeEnum8 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt8, AggregateFunctionTemplate>(second_type);
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else if (typeid_cast<const DataTypeEnum16 *>(&first_type)) return createWithTwoNumericTypesSecond<UInt16, AggregateFunctionTemplate>(second_type);
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else
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return nullptr;
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}
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}
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