ORA-63354
Table has column name string that is reserved by the timehouse enabled table.
Cause
Retry the operation with a different column name. The following are the reserved column names for a timehouse enabled table: SYS_STARTIME, SYS_ENDTIME, SYS_STARTSCN, SYS_ENDSCN, SYS_OPERATION and SYS_XID.
Action
Retry the operation with a different column name.