Method quotientList

core/src/main/java/org/apache/calcite/util/Util.java:2108–2111

Creates a list that returns every nth element of a list, starting at element k. It is OK if the list is empty or its size is not a multiple of n. For instance, quotientList(list, 2, 0) returns the even elements of a list, and quotientList(list, 2, 1) r

(
      final List<E> list, final int n, final int k)

   * elements. Those lists are the same length only if list has even size.
   */
  public static <E> List<E> quotientList(
      final List<E> list, final int n, final int k) {
    return new QuotientList<>(list, n, k);
  }

  /** Given a list with N elements
   * [e<sub>0</sub>, e<sub>1</sub>, ..., e<sub>N-1</sub>]