public long getCurrentUnSeqOrderTime(int curIndex) {
    if (curIndex != this.curUnSeqIndex) {
      throw new IllegalArgumentException(
          String.format(
              "curIndex %d is not equal to curSeqIndex %d", curIndex, this.curUnSeqIndex));
    }
    return this.curUnSeqOrderTime;
  }
TsFileResources used by read job.

<p>Note: Sequences under the same data region share two lists of TsFileResources (seq and
unseq).
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/read/QueryDataSource.java