DF_get_class_index 531 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 550 modules/qc/query_command.c               type = DF_get_class_index(index);
DF_get_class_index 600 modules/qc/query_command.c               type = DF_get_class_index(index);