public void expireFiles(long ttlPoint) {
      List<IcebergFileEntry> expiredDataFileEntries = getExpiredDataFileEntries(ttlPoint);
      deleteChangeFile(expiredDataFileEntries);
    }
Table maintainer for mixed-iceberg and mixed-hive tables.
amoro-ams/src/main/java/org/apache/amoro/server/optimizing/maintainer/MixedTableMaintainer.java