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61 lines
2.5 KiB
C++
61 lines
2.5 KiB
C++
#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/Helpers.h>
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#include <AggregateFunctions/FactoryHelpers.h>
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#include <AggregateFunctions/AggregateFunctionStatistics.h>
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#include "registerAggregateFunctions.h"
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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}
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namespace
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{
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template <template <typename> class FunctionTemplate>
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AggregateFunctionPtr createAggregateFunctionStatisticsUnary(const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{
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assertNoParameters(name, parameters);
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assertUnary(name, argument_types);
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AggregateFunctionPtr res(createWithNumericType<FunctionTemplate>(*argument_types[0], argument_types[0]));
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if (!res)
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throw Exception("Illegal type " + argument_types[0]->getName() + " of argument for aggregate function " + name, ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return res;
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}
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template <template <typename, typename> class FunctionTemplate>
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AggregateFunctionPtr createAggregateFunctionStatisticsBinary(const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{
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assertNoParameters(name, parameters);
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assertBinary(name, argument_types);
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AggregateFunctionPtr res(createWithTwoNumericTypes<FunctionTemplate>(*argument_types[0], *argument_types[1], argument_types));
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if (!res)
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throw Exception("Illegal types " + argument_types[0]->getName() + " and " + argument_types[1]->getName()
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+ " of arguments for aggregate function " + name, ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return res;
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}
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}
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void registerAggregateFunctionsStatisticsStable(AggregateFunctionFactory & factory)
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{
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factory.registerFunction("varSampStable", createAggregateFunctionStatisticsUnary<AggregateFunctionVarSampStable>);
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factory.registerFunction("varPopStable", createAggregateFunctionStatisticsUnary<AggregateFunctionVarPopStable>);
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factory.registerFunction("stddevSampStable", createAggregateFunctionStatisticsUnary<AggregateFunctionStddevSampStable>);
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factory.registerFunction("stddevPopStable", createAggregateFunctionStatisticsUnary<AggregateFunctionStddevPopStable>);
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factory.registerFunction("covarSampStable", createAggregateFunctionStatisticsBinary<AggregateFunctionCovarSampStable>);
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factory.registerFunction("covarPopStable", createAggregateFunctionStatisticsBinary<AggregateFunctionCovarPopStable>);
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factory.registerFunction("corrStable", createAggregateFunctionStatisticsBinary<AggregateFunctionCorrStable>);
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}
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}
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