Method equalTo

core/src/main/java/org/apache/calcite/util/ArrowSet.java:255–262

(ArrowSet other)

  }

  public boolean equalTo(ArrowSet other) {
    for (Arrow arrow : arrowSet) {
      if (!other.implies(arrow.getDeterminants(), arrow.getDependents())) {
        return false;
      }
    }
    return true;
  }

  @Override public String toString() {
    StringBuilder sb = new StringBuilder();