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28 lines
769 B
C++
28 lines
769 B
C++
#pragma once
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#include <AggregateFunctions/IAggregateFunction.h>
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#include <Core/ColumnNumbers.h>
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#include <Core/Names.h>
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#include <Core/Types.h>
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namespace DB
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{
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namespace JSONBuilder { class JSONMap; }
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struct AggregateDescription
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{
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AggregateFunctionPtr function;
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Array parameters; /// Parameters of the (parametric) aggregate function.
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ColumnNumbers arguments;
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Names argument_names; /// used if no `arguments` are specified.
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String column_name; /// What name to use for a column with aggregate function values
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void explain(WriteBuffer & out, size_t indent) const; /// Get description for EXPLAIN query.
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void explain(JSONBuilder::JSONMap & map) const;
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};
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using AggregateDescriptions = std::vector<AggregateDescription>;
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}
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