num_fields         81 extensions/mysql/mysql_db.cpp     int num_fields();
num_fields         82 extensions/mysql/mysql_db.cpp     int num_fields(MYSQL_RES *result);
num_fields        120 extensions/mysql/mysql_db.cpp         return num_fields(_result);
num_fields        354 extensions/mysql/mysql_db.cpp     return as_value(ptr->num_fields());