return
			}
		case "LocksAbandoned":
			z.LocksAbandoned, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "LocksAbandoned")
				return
			}
		case "LastCleanup":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "LastCleanup")
					return
				}
				z.LastCleanup = nil
			} else {
				if z.LastCleanup == nil {

		db.AddError(committer.Commit())
	} else {
		db.AddError(ErrInvalidTransaction)
	}
	return db
}

// Rollback rollbacks the changes in a transaction
func (db *DB) Rollback() *DB {
	if committer, ok := db.Statement.ConnPool.(TxCommitter); ok && committer != nil {
		if !reflect.ValueOf(committer).IsNil() {
			db.AddError(committer.Rollback())
		}

	}

	return value == nil || eqNilReflect(value)
}

func eqNilReflect(value interface{}) bool {
	reflectValue := reflect.ValueOf(value)
	return reflectValue.Kind() == reflect.Ptr && reflectValue.IsNil()

		switch msgp.UnsafeString(field) {
		case "OlderThan":
			err = z.OlderThan.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "OlderThan")
				return
			}
		case "CreatedBefore":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "CreatedBefore")
					return
				}
				z.CreatedBefore = nil
			} else {
				if z.CreatedBefore == nil {

					// same nested structure
					if _, ok := joinedNestedSchemaMap[fullRelsName]; !ok {
						if value := reflect.ValueOf(values[idx]).Elem(); value.Kind() == reflect.Ptr && value.IsNil() {
							isNilPtrValue = true
							break
						}

						relValue.Set(reflect.New(relValue.Type().Elem()))
						joinedNestedSchemaMap[fullRelsName] = nil
					}
				}
				currentReflectValue = relValue

			}
		}
	}

	// assign stmt.ReflectValue
	if stmt.Dest != nil {
		stmt.ReflectValue = reflect.ValueOf(stmt.Dest)
		for stmt.ReflectValue.Kind() == reflect.Ptr {
			if stmt.ReflectValue.IsNil() && stmt.ReflectValue.CanAddr() {
				stmt.ReflectValue.Set(reflect.New(stmt.ReflectValue.Type().Elem()))
			}

			stmt.ReflectValue = stmt.ReflectValue.Elem()
		}
		if !stmt.ReflectValue.IsValid() {

				return
			}
		case "lu":
			z.LastUpdate, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastUpdate")
				return
			}
		case "dec":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Decommission")
					return
				}
				z.Decommission = nil
			} else {
				if z.Decommission == nil {

			stmt.Vars = append(stmt.Vars, v.Value)
		case clause.Column, clause.Table:
			stmt.QuoteTo(writer, v)
		case Valuer:
			reflectValue := reflect.ValueOf(v)
			if reflectValue.Kind() == reflect.Ptr && reflectValue.IsNil() {
				stmt.AddVar(writer, nil)
			} else {
				stmt.AddVar(writer, v.GormValue(stmt.Context, stmt.DB))
			}
		case clause.Interface:
			c := clause.Clause{Name: v.Name()}
			v.MergeClause(&c)

				z.ObjVersions[za0002], err = dc.ReadUint64()
				if err != nil {
					err = msgp.WrapError(err, "ObjVersions", za0002)
					return
				}
			}
		case "ats":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "AllTierStats")
					return
				}
				z.AllTierStats = nil
			} else {
				if z.AllTierStats == nil {

// remainder of bytes.
func (m *MSS) UnmarshalMsg(bts []byte) (o []byte, err error) {
	if m == nil {
		return bts, errors.New("MSS: UnmarshalMsg on nil pointer")
	}
	if msgp.IsNil(bts) {
		bts = bts[1:]
		*m = nil
		return bts, nil
	}
	var zb0002 uint32
	zb0002, bts, err = msgp.ReadMapHeaderBytes(bts)
	if err != nil {
		err = msgp.WrapError(err, "Values")
		return o, err
	}