docs: public int getColumnType( int index ) throws OdaException
  	{
  		//return Types.JAVA_OBJECT;//Any OrientDB field may be NULL
  		///*
  		String fieldName = getColumnName(index);
  		OType fieldType = rowDoc.fieldType(fieldName);
  		if (fieldType!=null){
  			return typesSqlTypes.get(fieldType);
  		}else{
  			return Types.VARCHAR;
  			//throw new OdaException("Unknown OType of field "+fieldName+" with index "+index);
  		}
  		//*/
  	}