saveTokenOwner := func(owner *TokenOwner) (*TokenOwner, error) {
		var newOwner TokenOwner
		if err := DB.Transaction(func(tx *gorm.DB) error {
			if err := tx.Session(&gorm.Session{FullSaveAssociations: true}).Save(owner).Error; err != nil {
				return err
			}
			if err := tx.Preload("Token").First(&newOwner, owner.ID).Error; err != nil {
				return err
			}
			return nil
		}); err != nil {
			return nil, err

			}

			err = tx.Exec(createTableSQL, values...).Error
			return err
		}); err != nil {
			return err
		}
	}
	return nil
}

// DropTable drop table for values
func (m Migrator) DropTable(values ...interface{}) error {
	values = m.ReorderModels(values, false)
	for i := len(values) - 1; i >= 0; i-- {
		tx := m.DB.Session(&gorm.Session{})

func TestTableWithNamer(t *testing.T) {
	db, _ := gorm.Open(tests.DummyDialector{}, &gorm.Config{
		NamingStrategy: schema.NamingStrategy{
			TablePrefix: "t_",
		},
	})

	sql := db.ToSQL(func(tx *gorm.DB) *gorm.DB {
		return tx.Model(&UserWithTableNamer{}).Find(&UserWithTableNamer{})
	})

	if !regexp.MustCompile("SELECT \\* FROM `t_users`").MatchString(sql) {
		t.Errorf("Table with namer, got %v", sql)
	}
}

	}
	user := User{ID: 1, Name: "king"}
	tx := DB.Session(&gorm.Session{DryRun: true}).Save(&user)

	if err := tx.Error; err != nil {
		t.Fatalf("failed to update user,missing where condition,err=%+v", err)
	}

	if !regexp.MustCompile("WHERE .id. = [^ ]+$").MatchString(tx.Statement.SQL.String()) {
		t.Fatalf("invalid updating SQL, got %v", tx.Statement.SQL.String())
	}

pkg crypto, const BLAKE2s_256 = 16
pkg crypto, const BLAKE2s_256 Hash
pkg crypto/x509, type Certificate struct, ExcludedDNSDomains []string
pkg database/sql, method (*Conn) BeginTx(context.Context, *TxOptions) (*Tx, error)
pkg database/sql, method (*Conn) Close() error
pkg database/sql, method (*Conn) ExecContext(context.Context, string, ...interface{}) (Result, error)
pkg database/sql, method (*Conn) PingContext(context.Context) error

	Tier             string `json:"tier"`
	TimeToResponseNS int64  `json:"timeToResponseNS"`
	OutputBytes      int64  `json:"tx,omitempty"`
	Error            string `json:"error,omitempty"`
}

func (op auditTierOp) String() string {
	// flattening the auditTierOp{} for audit
	return fmt.Sprintf("tier:%s,respNS:%d,tx:%d,err:%s", op.Tier, op.TimeToResponseNS, op.OutputBytes, op.Error)
}

	if err = tx.Save(&user1).Error; err != nil {
		t.Fatalf("No error should raise, but got %v", err)
	}

	if err = tx.First(&User{}, "name = ?", user1.Name).Error; err != nil {
		t.Fatalf("Should find saved record, but got %v", err)
	}

	if sqlTx, ok := tx.Statement.ConnPool.(gorm.TxCommitter); !ok || sqlTx == nil {
		t.Fatalf("Should return the underlying sql.Tx")
	}

	tx.Rollback()

	// FIXME: network calls made in this manner such as one goroutine per node,
	// can easily eat into the internode bandwidth. This function would be mostly
	// TX saturating, however there are situations where a RX might also saturate.
	// To avoid these problems we must split the work at scale. With 1000 node
	// setup becoming a reality we must try to shard the work properly such as

	}

	var err error
	_ = DB.Migrator().DropTable(&RelationModel1{}, &RelationModel2{}, &RelationModel3{})

	tx := DB.Session(&gorm.Session{})
	tx.IgnoreRelationshipsWhenMigrating = true

	err = tx.AutoMigrate(&RelationModel3{})
	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}

	// RelationModel3 should be existed

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