}

  /** Returns a joiner which automatically places {@code separator} between consecutive elements. */
  public static Joiner on(char separator) {
    return new Joiner(String.valueOf(separator));
  }

  private final String separator;

  private Joiner(String separator) {
    this.separator = checkNotNull(separator);
  }

  private Joiner(Joiner prototype) {
    this.separator = prototype.separator;
  }

		for _, join := range joins {
			if _, ok := relationships.Relations[join]; ok && name == join {
				joined = true
				continue
			}
			join0, join1, cut := strings.Cut(join, ".")
			if cut {
				if _, ok := relationships.Relations[join0]; ok && name == join0 {
					joined = true
					nestedJoins = append(nestedJoins, join1)
				}
			}
		}
		return joined, nestedJoins
	}

	value := Value{
		Name: "value",
		Nested: &Nested{
			Join: Join{
				Value: "j1",
				Preload: Preload{
					Value: "p1",
				},
			},
		},
	}

	if err := DB.Create(&value).Error; err != nil {
		t.Errorf("failed to create value, got err: %v", err)
	}

	var find1 Value

		switch op.Type {
		case clause.OpUnlink, clause.OpDelete:
			joinDB = joinDB.Where("EXISTS (?)", ownersExists)
			if len(op.Conditions) > 0 {
				joinDB = joinDB.Where("EXISTS (?)", relatedExists)
			}
			return joinDB.Delete(nil).Error
		case clause.OpUpdate:
			// Update related table rows that have join rows matching owners

  }

  private static void checkNoOutput(Joiner joiner, Iterable<Integer> set) {
    assertEquals("", joiner.join(set));
    assertEquals("", joiner.join(set.iterator()));

    Object[] array = newArrayList(set).toArray(new Integer[0]);
    assertEquals("", joiner.join(array));

    StringBuilder sb1FromIterable = new StringBuilder();
    assertSame(sb1FromIterable, joiner.appendTo(sb1FromIterable, set));

  }

  private static void checkNoOutput(Joiner joiner, Iterable<Integer> set) {
    assertEquals("", joiner.join(set));
    assertEquals("", joiner.join(set.iterator()));

    Object[] array = newArrayList(set).toArray(new Integer[0]);
    assertEquals("", joiner.join(array));

    StringBuilder sb1FromIterable = new StringBuilder();
    assertSame(sb1FromIterable, joiner.appendTo(sb1FromIterable, set));

					Name: "nested-joins-manager-namepet-1",
					Toy: Toy{
						Name: "nested-joins-manager-namepet-toy-1",
					},
				},
			},
			NamedPet: &Pet{Name: "nested-joins-namepet-1", Toy: Toy{Name: "nested-joins-namepet-toy-1"}},
		},
		{
			Name:     "nested-joins-2",
			Manager:  GetUser("nested-joins-manager-2", Config{Company: true, NamedPet: true}),

						}
					} else {
						fromClause.Joins = append(fromClause.Joins, clause.Join{
							Expression: clause.NamedExpr{SQL: join.Name, Vars: join.Conds},
						})
					}
				} else {
					fromClause.Joins = append(fromClause.Joins, clause.Join{
						Expression: clause.NamedExpr{SQL: join.Name, Vars: join.Conds},
					})
				}
			}

			db.Statement.AddClause(fromClause)
		} else {

					Name: "generics-nested-joins-manager-company-1",
				},
				NamedPet: &Pet{
					Name: "generics-nested-joins-manager-namepet-1",
					Toy: Toy{
						Name: "generics-nested-joins-manager-namepet-toy-1",
					},
				},
			},
			NamedPet: &Pet{Name: "generics-nested-joins-namepet-1", Toy: Toy{Name: "generics-nested-joins-namepet-toy-1"}},
		},
		{
			Name:     "generics-nested-joins-2",

   * {@code joiner}.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code joiner.join(stream.iterator())}, or, if you are not
   * using any optional {@code Joiner} features, {@code
   * stream.collect(Collectors.joining(delimiter)}.
   *
   * @since 18.0
   */
  public final String join(Joiner joiner) {
    return joiner.join(this);
  }

  /**