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#ifndef PG_COLUMN_H
#define PG_COLUMN_H
#include <column.h>
#include <libpq-fe.h>
namespace PQ {
class SelectBase;
class Column : public DB::Column {
public:
Column(const SelectBase *, unsigned int field);
~Column();
bool isNull() const override;
void apply(DB::HandleField &) const override;
protected:
template<typename T>
inline T valueAs() const { return *(T*)(value()); }
template<typename T>
inline T * valueAsPtr() const { return (T*)(value()); }
const char * value() const;
std::size_t length() const;
const SelectBase * sc;
const Oid oid;
// Buffer for PQunescapeBytea
mutable unsigned char * buf;
};
}
#endif
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