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#include <AggregateFunctions/AggregateFunctionFactory.h>
#include <AggregateFunctions/HelpersMinMaxAny.h>
#include <AggregateFunctions/FactoryHelpers.h>
namespace DB
{
struct Settings;
namespace
{
AggregateFunctionPtr createAggregateFunctionMax(
const std::string & name, const DataTypes & argument_types, const Array & parameters, const Settings * settings)
{
return AggregateFunctionPtr(createAggregateFunctionSingleValue<AggregateFunctionsSingleValue, AggregateFunctionMaxData>(name, argument_types, parameters, settings));
}
AggregateFunctionPtr createAggregateFunctionArgMax(
const std::string & name, const DataTypes & argument_types, const Array & parameters, const Settings * settings)
{
return AggregateFunctionPtr(createAggregateFunctionArgMinMax<AggregateFunctionMaxData>(name, argument_types, parameters, settings));
}
}
void registerAggregateFunctionsMax(AggregateFunctionFactory & factory)
{
factory.registerFunction("max", createAggregateFunctionMax, AggregateFunctionFactory::CaseInsensitive);
/// The functions below depend on the order of data.
AggregateFunctionProperties properties = { .returns_default_when_only_null = false, .is_order_dependent = true };
factory.registerFunction("argMax", { createAggregateFunctionArgMax, properties });
}
}
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