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#include <AggregateFunctions/AggregateFunctionFactory.h>
#include <AggregateFunctions/AggregateFunctionAnalysisOfVariance.h>
#include <AggregateFunctions/FactoryHelpers.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
namespace
{
AggregateFunctionPtr createAggregateFunctionAnalysisOfVariance(const std::string & name, const DataTypes & arguments, const Array & parameters, const Settings *)
{
assertNoParameters(name, parameters);
assertBinary(name, arguments);
if (!isNumber(arguments[0]))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Aggregate function {} only supports numerical argument types", name);
if (!WhichDataType(arguments[1]).isNativeUInt())
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Second argument of aggregate function {} should be a native unsigned integer", name);
return std::make_shared<AggregateFunctionAnalysisOfVariance>(arguments, parameters);
}
}
void registerAggregateFunctionAnalysisOfVariance(AggregateFunctionFactory & factory)
{
AggregateFunctionProperties properties = { .is_order_dependent = false };
factory.registerFunction("analysisOfVariance", {createAggregateFunctionAnalysisOfVariance, properties}, AggregateFunctionFactory::CaseInsensitive);
/// This is widely used term
factory.registerAlias("anova", "analysisOfVariance", AggregateFunctionFactory::CaseInsensitive);
}
}
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