@Explain(displayName = "skewed locations", explainLevels = { Level.USER, Level.DEFAULT, Level.EXTENDED })
  public List<String> getSkewedLocationsExplain() {
    return skewedLocations.entrySet().stream()
        .map(e -> "(" + e.getKey() + ": " + e.getValue() + ")").collect(Collectors.toList());
  }
DDL task description for ALTER TABLE ... SET SKEWED LOCATION commands.
ql/src/java/org/apache/hadoop/hive/ql/ddl/table/storage/skewed/AlterTableSetSkewedLocationDesc.java