(Expression)
ExpressionTransform × 10
  (Aggregating)
  Resize 1 → 10
    AggregatingTransform
      (Expression)
      ExpressionTransform
        (ReadFromPreparedSource)
        SourceFromSingleChunk 0 → 1
(Expression)
ExpressionTransform × 10
  (MergingAggregated)
  Resize 1 → 10
    MergingAggregatedTransform
      (Expression)
      ExpressionTransform
        (ReadFromPreparedSource)
        SourceFromSingleChunk 0 → 1