26 #ifndef __TERRALIB_DATAACCESS_INTERNAL_FIELDS_H 
   27 #define __TERRALIB_DATAACCESS_INTERNAL_FIELDS_H 
   30 #include <boost/ptr_container/ptr_vector.hpp> 
   40     typedef boost::ptr_vector<Field> 
Fields;
 
   45 #endif  // __TERRALIB_DATAACCESS_INTERNAL_FIELDS_H 
The Field class can be used to model an expression that takes part of the output items of a SELECT...
 
boost::ptr_vector< Field > Fields
Fields is just a boost::ptr_vector of Field pointers.