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29 lines
696 B
C++
29 lines
696 B
C++
#pragma once
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#include <Poco/RegularExpression.h>
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#include <DB/AggregateFunctions/IAggregateFunction.h>
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namespace DB
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{
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/** Позволяет создать агрегатную функцию по её имени.
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*/
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class AggregateFunctionFactory
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{
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public:
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using FunctionNames = std::vector<std::string>;
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public:
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AggregateFunctionFactory();
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AggregateFunctionPtr get(const String & name, const DataTypes & argument_types, int recursion_level = 0) const;
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AggregateFunctionPtr tryGet(const String & name, const DataTypes & argument_types) const;
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const FunctionNames & getFunctionNames() const;
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bool isAggregateFunctionName(const String & name, int recursion_level = 0) const;
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};
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}
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