Row count int sys.dm_exec_query_stats


SQL 2012 has added 4 new columns 
total_rows,
last_rows,
min_rows,
max_rows  in sys.dm_exec_query_stats DMV
This will help us to find the queries which are returning large number of results and we can optimized them 




SELECT QS.*,
       Substring(ST.text,
                        ( QS.statement_start_offset / 2 ) + 1,
                        ( ( CASE statement_end_offset
                           WHEN -1 THEN Datalength(st.text)
                                                      ELSE QS.statement_end_offset
                           END - QS.statement_start_offset ) / 2 ) + 1) AS statement_text
FROM   sys.dm_exec_query_stats AS QS
       CROSS APPLY sys.Dm_exec_sql_text(QS.sql_handle) AS ST
ORDER  BY max_rows DESC



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