@Override
      public String toString() {
        return "CacheStreamData [name=" + name + ", isSuppressed="
            + isSuppressed + ", data=" + toString(data) + "]";
      }
Gets the end offset of the current row, or -1 if unknown.
llap-server/src/java/org/apache/hadoop/hive/llap/io/encoded/SerDeEncodedDataReader.java