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43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#pragma once
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#include <DataTypes/DataTypeNumberBase.h>
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#include <Common/IntervalKind.h>
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namespace DB
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{
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/** Data type to deal with INTERVAL in SQL (arithmetic on time intervals).
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*
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* Mostly the same as Int64.
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* But also tagged with interval kind.
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*
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* Intended usage is for temporary elements in expressions,
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* not for storing values in tables.
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*/
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class DataTypeInterval final : public DataTypeNumberBase<Int64>
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{
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private:
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IntervalKind kind;
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public:
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static constexpr bool is_parametric = true;
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IntervalKind getKind() const { return kind; }
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DataTypeInterval(IntervalKind kind_) : kind(kind_) {}
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std::string doGetName() const override { return std::string("Interval") + kind.toString(); }
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const char * getFamilyName() const override { return "Interval"; }
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TypeIndex getTypeId() const override { return TypeIndex::Interval; }
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bool equals(const IDataType & rhs) const override;
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bool isParametric() const override { return true; }
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bool cannotBeStoredInTables() const override { return true; }
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bool isCategorial() const override { return false; }
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};
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}
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