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42 lines
748 B
C++
42 lines
748 B
C++
#pragma once
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#include <Yandex/Common.h> /// Yandex::VisitID_t
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#include <DB/Core/Field.h>
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namespace DB
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{
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/// Перевести что угодно в Field.
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template <typename T>
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inline Field toField(const T & x)
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{
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return Field(typename NearestFieldType<T>::Type(x));
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}
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inline Field toField(const mysqlxx::Date & x)
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{
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return toField(static_cast<UInt16>(x.getDayNum()));
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}
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inline Field toField(const mysqlxx::DateTime & x)
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{
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return toField(static_cast<UInt32>(static_cast<time_t>(x)));
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}
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inline Field toField(const Yandex::VisitID_t & x)
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{
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return toField(static_cast<UInt64>(x));
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}
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template <typename T>
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inline Field toField(const mysqlxx::Null<T> & x)
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{
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return x.isNull() ? Field(Null()) : toField(static_cast<const T &>(x));
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}
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}
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