public boolean enoughContent() {
    return undersizedSegmentFileSize >= config.getTargetSize() &&
        min1SegmentFileSize + min2SegmentFileSize <= config.getTargetSize();
  }
Segment files has enough content.

<p>1. The total size of all undersized segment files is greater than target size

<p>2. There are two undersized segment file that can be merged into one
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/compaction/evaluator/amoro/CommonPartitionEvaluator.java