last_record: [0,0]
incremental: true
incremental_columns: [num,num2]
use_raw_query_with_incremental: true
query: |
  SELECT
    *
  FROM
    query_load
  WHERE
    num IS NOT NULL
    AND num > :num
    OR (num = :num AND num2 > :num2)
  ORDER BY
    num ASC,
    num2 ASC