Client Tools :: Auto Optimizer Stats Collection

In my database auto optimizer stats collection job scheduled. It is successfully running,i am confirming this by viewing DBA_AUTOTASK_JOB_HISTORY. My doubt is whether stats gather job collect statistics when 10%(default value) of data modified in a hole table or table partitions.

Below is the output for user_tab_modification.I am able to see two entry for same table.

SQL> select TABLE_NAME,PARTITION_NAME,INSERTS,UPDATES,DELETES,TIMESTAMP,TRUNCATED from USER_tab_modifications where table_name='DLM_PERFORMANCE_DATA';

TABLE_NAME PARTITION_NAME INSERTS UPDATES DELETES TIMESTAMP TRU
------------------------------ ------------------------------ ---------- ---------- ---------- ----------- ---
DLM_PERFORMANCE_DATA 169812174 0 0 20-SEP-2012 NO
DLM_PERFORMANCE_DATA SYS_P2663580 4946409 0 0 20-SEP-2012 NO