// 버그가 해결 될 때까지 부모측에서 @org.hibernate.annotations.ForeignKey 를 함께 사용해야 한다.
// parent side
    @OneToMany(
            cascade = CascadeType.ALL,
            fetch = FetchType.LAZY,
            mappedBy = "parent",
            orphanRemoval = true
    )
    // do not use a foreign key constraint, because it's not compatible with partitioning.
    // needed on both sides of the relationship, but it doesn't look like jpa allows you
    // to use @javax.persistence.ForeignKey on the mappedBy side, so we use deprecated hibernate
    // version.
    @org.hibernate.annotations.ForeignKey(name = "none")
    public List<Child> getChildren() {
        return _children;
    }
 
// child side
    @ManyToOne
    @JoinColumn(
            // do not use a foreign key constraint, because it's not compatible with partitioning
            foreignKey = @ForeignKey(value = ConstraintMode.NO_CONSTRAINT)
    )
    public Parent getParent() {
        return _parent;
    }