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32 lines
881 B
C++
32 lines
881 B
C++
#include <DB/AggregateFunctions/AggregateFunctionFactory.h>
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#include <DB/AggregateFunctions/AggregateFunctionAvg.h>
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#include <DB/AggregateFunctions/Helpers.h>
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namespace DB
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{
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namespace
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{
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AggregateFunctionPtr createAggregateFunctionAvg(const std::string & name, const DataTypes & argument_types)
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{
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if (argument_types.size() != 1)
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throw Exception("Incorrect number of arguments for aggregate function " + name, ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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AggregateFunctionPtr res = createWithNumericType<AggregateFunctionAvg>(*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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}
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void registerAggregateFunctionAvg(AggregateFunctionFactory & factory)
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{
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factory.registerFunction({"avg"}, createAggregateFunctionAvg);
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}
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}
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