text: SELECT TOP 10 query_id, [wait time(sec)] = CAST(wait_time_ms /1000 AS NUMERIC(8,1)),
  	start_time, end_time, query_text_id, execution_type_desc
  FROM qpi.db_query_wait_stats_as_of(null)
  WHERE category = 'Buffer IO'
  AND wait_time_ms > 50
  ORDER BY wait_time_ms DESC