@Override
    public Projection complement(int fieldsNumber) {
      return new TopLevelProjection(IntStream.range(0, fieldsNumber).toArray());
    }
Create a {@link Projection} of a field range.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/util/Projection.java