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sqxxl: added Loader, added support in DBObjects [#CONV-2944].

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This commit is contained in:
Alexey Milovidov 2012-06-07 18:32:21 +00:00
parent 048898245b
commit cb5d044eb5
1 changed files with 33 additions and 1 deletions
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34
dbms/include/DB/Core/Field.h
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@ -9,7 +9,8 @@
#include <Poco/NumberFormatter.h>
#include <mysqlxx/mysqlxx.h>
#include <Yandex/Common.h> /// Yandex::VisitID_t
#include <mysqlxx/mysqlxx.h> /// mysqlxx::Date, mysqlxx::DateTime
#include <DB/Core/Types.h>
#include <DB/Core/Exception.h>
@ -189,5 +190,36 @@ template <> struct NearestFieldType<Int64> { typedef Int64 Type; };
template <> struct NearestFieldType<Float32> { typedef Float64 Type; };
template <> struct NearestFieldType<Float64> { typedef Float64 Type; };
template <> struct NearestFieldType<String> { typedef String Type; };
template <> struct NearestFieldType<bool> { typedef UInt64 Type; };
/// Перевести что угодно в Field.
template <typename T>
inline Field toField(const T & x)
{
return Field(typename NearestFieldType<T>::Type(x));
}
inline Field toField(const mysqlxx::Date & x)
{
return toField(static_cast<UInt16>(x.getDayNum()));
}
inline Field toField(const mysqlxx::DateTime & x)
{
return toField(static_cast<UInt32>(static_cast<time_t>(x)));
}
inline Field toField(const Yandex::VisitID_t & x)
{
return toField(static_cast<UInt64>(x));
}
template <typename T>
inline Field toField(const mysqlxx::Null<T> & x)
{
return x.isNull() ? Field(Null()) : toField(static_cast<const T &>(x));
}
}