t.Errorf("Failed to commit transaction, got error %v\n", err)
	}

	if result := db.Where("name=?", "zzjin").Delete(&User{}); result.Error != nil || result.RowsAffected != 1 {
		t.Fatalf("Failed, got error: %v, rows affected: %v", result.Error, result.RowsAffected)
	}

	tx2 := db.Begin()
	if result := tx2.Where("name=?", "zzjin").Delete(&User{}); result.Error != nil || result.RowsAffected != 0 {

}

func (cs *callbacks) Query() *processor {
	return cs.processors["query"]
}

func (cs *callbacks) Update() *processor {
	return cs.processors["update"]
}

func (cs *callbacks) Delete() *processor {
	return cs.processors["delete"]
}

func (cs *callbacks) Row() *processor {
	return cs.processors["row"]
}

func (cs *callbacks) Raw() *processor {
	return cs.processors["raw"]
}

	}

	ids := make([]int64, 0, len(rows))
	for _, row := range rows {
		ids = append(ids, row.ID)
	}
	lastID := ids[len(ids)-1]

	if err := DB.Where("id IN (?)", ids).Delete(&AutoIncrementStruct{}).Error; err != nil {
		t.Fatalf("delete auto_increment_struct fail, err: %v", err)
	}

	newRow := &AutoIncrementStruct{}
	if err := DB.Create(newRow).Error; err != nil {

	default:
		var (
			selectColumns, restricted = stmt.SelectAndOmitColumns(true, false)
			_, updateTrackTime        = stmt.Get("gorm:update_track_time")
			isZero                    bool
		)
		stmt.Settings.Delete("gorm:update_track_time")

		values = clause.Values{Columns: make([]clause.Column, 0, len(stmt.Schema.DBNames))}

		for _, db := range stmt.Schema.DBNames {

	}

	return nil, ErrInvalidDB
}

func (db *PreparedStmtDB) Close() {
	db.Mux.Lock()
	defer db.Mux.Unlock()

	for _, query := range db.PreparedSQL {
		if stmt, ok := db.Stmts[query]; ok {
			delete(db.Stmts, query)
			go stmt.Close()
		}
	}
}

func (sdb *PreparedStmtDB) Reset() {
	sdb.Mux.Lock()
	defer sdb.Mux.Unlock()

	for _, stmt := range sdb.Stmts {
		go stmt.Close()
	}

	}
	sort.Slice(users3, func(i, j int) bool {
		return users2[i].ID < users2[j].ID
	})

	for i, u := range users3 {
		CheckUser(t, u, users[i])
	}

	var user4 User
	DB.Delete(&users3[0].Account)

	if err := DB.Preload(clause.Associations).Take(&user4, "id = ?", users3[0].ID).Error; err != nil || user4.Account.ID != 0 {
		t.Errorf("failed to query, got error %v, account: %#v", err, user4.Account)

			db.Statement.SQL.Grow(180)
			db.Statement.AddClauseIfNotExists(clause.Update{})
			if _, ok := db.Statement.Clauses["SET"]; !ok {
				if set := ConvertToAssignments(db.Statement); len(set) != 0 {
					defer delete(db.Statement.Clauses, "SET")
					db.Statement.AddClause(set)
				} else {
					return
				}
			}

			db.Statement.Build(db.Statement.BuildClauses...)
		}

		checkMissingWhereConditions(db)

func (constraint *Constraint) Build() (sql string, vars []interface{}) {
	sql = "CONSTRAINT ? FOREIGN KEY ? REFERENCES ??"
	if constraint.OnDelete != "" {
		sql += " ON DELETE " + constraint.OnDelete
	}

	if constraint.OnUpdate != "" {
		sql += " ON UPDATE " + constraint.OnUpdate
	}

	foreignKeys := make([]interface{}, 0, len(constraint.ForeignKeys))