public static void mergeBloomFilterBytes(
    byte[] bf1Bytes, int bf1Start, int bf1Length,
    byte[] bf2Bytes, int bf2Start, int bf2Length) {
    mergeBloomFilterBytes(bf1Bytes, bf1Start, bf1Length, bf2Bytes, bf2Start, bf2Length,
        START_OF_SERIALIZED_LONGS, bf1Length);
  }
Deserialize a bloom filter
Read a byte stream, which was written by {@linkplain #serialize(OutputStream, BloomKFilter)}
into a {@code BloomKFilter}

@param in input bytestream
@return deserialized BloomKFilter
storage-api/src/java/org/apache/hive/common/util/BloomKFilter.java