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43 lines
1.7 KiB
C++
43 lines
1.7 KiB
C++
#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/AggregateFunctionMaxIntersections.h>
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#include <AggregateFunctions/FactoryHelpers.h>
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#include <AggregateFunctions/Helpers.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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AggregateFunctionPtr createAggregateFunctionMaxIntersections(
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AggregateFunctionIntersectionsKind kind,
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const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{
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assertBinary(name, argument_types);
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assertNoParameters(name, parameters);
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AggregateFunctionPtr res(createWithNumericType<AggregateFunctionIntersectionsMax>(*argument_types[0], kind, 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 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 registerAggregateFunctionsMaxIntersections(AggregateFunctionFactory & factory)
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{
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factory.registerFunction("maxIntersections", [](const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{ return createAggregateFunctionMaxIntersections(AggregateFunctionIntersectionsKind::Count, name, argument_types, parameters); });
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factory.registerFunction("maxIntersectionsPosition", [](const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{ return createAggregateFunctionMaxIntersections(AggregateFunctionIntersectionsKind::Position, name, argument_types, parameters); });
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}
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}
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