I know the FIRST_ROWS hint tells the optimizer to minimize time to first row. I know the new 12c functionality for "FETCH [FIRST|NEXT] [N] ROWS [ONLY|WITH TIES]"fetch first/next N rows only/with ties" will implement the query using ROW_NUMBER(). Should I leave hint in case it improves performance, or does the FETCH FIRST clause make this hint redundant?