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18 lines
396 B
C++
18 lines
396 B
C++
#pragma once
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#include <DataTypes/IDataType.h>
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namespace DB
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{
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/** Get data type that covers all possible values of passed data types.
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* If there is no such data type, throws an exception.
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*
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* Examples: least common supertype for UInt8, Int8 - Int16.
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* Examples: there is no least common supertype for Array(UInt8), Int8.
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*/
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DataTypePtr getLeastSupertype(const DataTypes & types);
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}
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