ORA-01013 during creation of index with timestamp

 Hello All,

Hope all are doing good!!

I am getting error ORA-01013 during the creation of index with timestamp column.

Please find the column description.

SQL> desc top_fin.BOOKING_CALC_LOG_LINE
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 SK_BOOKING_ID                             NOT NULL NUMBER(20)
 LOG_LINE_SEQUENCE                         NOT NULL NUMBER(10)
 LOG_LINE_TEXT                             NOT NULL VARCHAR2(4000)
 LOG_LINE_TIMESTAMP                        NOT NULL TIMESTAMP(6)
 SK_FIN_COMPONENT_VERSION_ID                        NUMBER(20)
 BOOKING_TRANS_DATE                        NOT NULL DATE

Thanks in Advance