public static CellComparator getCellComparator(TableName tableName) {
    return getCellComparator(tableName.toBytes());
  }
Utility method that makes a guess at comparator to use based off passed tableName. Use in
extreme when no comparator specified.
@return CellComparator to use going off the {@code tableName} passed.
hbase-common/src/main/java/org/apache/hadoop/hbase/CellComparatorImpl.java