}
	case schema.Many2Many:
		joinModel := reflect.New(rel.JoinTable.ModelType).Interface()
		joinDB := base.Session(&Session{NewDB: true, Context: ctx}).Model(joinModel)

		// EXISTS owners: owners.pk = join.owner_fk for all owner refs
		ownersExists := base.Session(&Session{NewDB: true, Context: ctx}).Table(rel.Schema.Table).Select("1")
		for _, ref := range rel.References {
			if ref.OwnPrimaryKey && ref.PrimaryKey != nil {