DF_get_class_index 612 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 631 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 678 modules/qc/query_command.c               type = DF_get_class_index(index);