@Override
  public void bindProgressIndex(final ProgressIndex overridingProgressIndex) {
    this.overridingProgressIndex = overridingProgressIndex;
  }
Only used for metrics on PipeConsensus' receiver side. If the event is recovered after data
node's restart, the flushPointCount can be not set. It's totally fine for the PipeConsensus'
receiver side. The receiver side will count the actual point count from the TsFile.

<p>If you want to get the actual point count with no risk, you can call {@link
#count(boolean)}.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/event/common/tsfile/PipeTsFileInsertionEvent.java