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31 lines
880 B
C++
31 lines
880 B
C++
#pragma once
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#include <DataTypes/IDataTypeDummy.h>
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#include <Columns/ColumnSet.h>
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namespace DB
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{
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/** The data type corresponding to the set of values in the IN section.
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* Used only as an intermediate when evaluating expressions.
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*/
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class DataTypeSet final : public IDataTypeDummy
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{
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public:
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static constexpr bool is_parametric = true;
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const char * getFamilyName() const override { return "Set"; }
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TypeIndex getTypeId() const override { return TypeIndex::Set; }
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bool equals(const IDataType & rhs) const override { return typeid(rhs) == typeid(*this); }
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bool isParametric() const override { return true; }
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// Used for expressions analysis.
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MutableColumnPtr createColumn() const override { return ColumnSet::create(0, nullptr); }
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// Used only for debugging, making it DUMPABLE
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Field getDefault() const override { return Tuple(); }
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};
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}
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