ClickHouse/dbms/src/AggregateFunctions/FactoryHelpers.h

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#pragma once
#include <Core/Field.h>
#include <DataTypes/IDataType.h>
namespace DB
{
void assertNoParameters(const std::string & name, const Array & parameters);
void assertUnary(const std::string & name, const DataTypes & argument_types);
void assertBinary(const std::string & name, const DataTypes & argument_types);
}