default Map<String, String> getOperatorDescProperties(OperatorDesc operatorDesc, Map<String, String> initialProps) {
    return initialProps;
  }
Used to add additional operator specific information from storage handler during DESCRIBE EXTENDED statement.

@param operatorDesc operatorDesc
@param initialProps Map containing initial operator properties
@return Map&lt;String, String&gt; containing additional operator specific information from storage handler
OR `initialProps` if the storage handler choose to not provide any such information.
ql/src/java/org/apache/hadoop/hive/ql/metadata/HiveStorageHandler.java