(Expression)
ExpressionTransform
  (SettingQuotaAndLimits)
    (Expression)
    ExpressionTransform
      (MergingFinal)
      ReplacingSorted 2 → 1
        (Expression)
        ExpressionTransform × 2
          (ReadFromMergeTree)
          MergeTree × 2 0 → 1
0	0
1	1
2	2
3	3
4	4
5	5
6	6
(Expression)
ExpressionTransform × 2
  (SettingQuotaAndLimits)
    (Expression)
    ExpressionTransform × 2
      (MergingFinal)
      ReplacingSorted × 2 2 → 1
        Copy × 2 1 → 2
          AddingSelector × 2
            (Expression)
            ExpressionTransform × 2
              (ReadFromMergeTree)
              MergeTree × 2 0 → 1