DF_get_class_index 538 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 558 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 609 modules/qc/query_command.c               type = DF_get_class_index(index);