public static boolean isMapEncoding(String columnEncoding) {
    return -1 != columnEncoding.indexOf(AccumuloHiveConstants.COLON);
  }
Removes the column encoding code and separator from the original column mapping string. Throws
an IllegalArgumentException if this method is called on a string that doesn't contain a code.

@param columnMapping
         The mapping from Hive column to Accumulo column
@return The column mapping with the code removed
accumulo-handler/src/java/org/apache/hadoop/hive/accumulo/columns/ColumnEncoding.java