func (t *ClientTrace) compose(old *ClientTrace) {
	if old == nil {
		return
	}
	tv := reflect.ValueOf(t).Elem()
	ov := reflect.ValueOf(old).Elem()
	structType := tv.Type()
	for i := 0; i < structType.NumField(); i++ {
		tf := tv.Field(i)
		hookType := tf.Type()
		if hookType.Kind() != reflect.Func {
			continue
		}
		of := ov.Field(i)
		if of.IsNil() {
			continue
		}
		if tf.IsNil() {

	{pkgpath: "nointerface",...

	}
	typ := reflect.Indirect(reflect.ValueOf(&UserMigrateColumn2{})).Type()
	numField := typ.NumField()
	if numField != len(columnTypes) {
		t.Fatalf("column's number not match struct and ddl, %d != %d", numField, len(columnTypes))
	}
	namer := schema.NamingStrategy{}
	for i := 0; i < numField; i++ {
		expectName := namer.ColumnName("", typ.Field(i).Name)
		if columnTypes[i].Name() != expectName {

		return int64Encoder(v.Int()), nil
	case reflect.Struct:
		t := v.Type()

		for i := 0; i < t.NumField(); i++ {
			if !t.Field(i).IsExported() {
				return nil, StructuralError{"struct contains unexported fields"}
			}
		}

		startingField := 0

		n := t.NumField()
		if n == 0 {
			return bytesEncoder(nil), nil
		}

		// If the first element of the structure is a non-empty

	enc.sent[ut.base] = info.id
	if ut.user != ut.base {
		enc.sent[ut.user] = info.id
	}
	// Now send the inner types
	switch st := actual; st.Kind() {
	case reflect.Struct:
		for i := 0; i < st.NumField(); i++ {
			if isExported(st.Field(i).Name) {
				enc.sendType(w, state, st.Field(i).Type)
			}
		}
	case reflect.Array, reflect.Slice:
		enc.sendType(w, state, st.Elem())
	case reflect.Map:

		"noinlines":            "noinlines",
		"showcolumns":          "showcolumns",
	}

	def := defaultConfig()
	configFieldMap = map[string]configField{}
	t := reflect.TypeOf(config{})
	for i, n := 0, t.NumField(); i < n; i++ {
		field := t.Field(i)
		js := strings.Split(field.Tag.Get("json"), ",")
		if len(js) == 0 {
			continue
		}
		// Get the configuration name for this field.
		name := js[0]

		codePoints := make([]rune, numChars)
		for i := 0; i < numChars; i++ {
			codePoints[i] = rune(rand.Intn(0x10ffff))
		}
		v.SetString(string(codePoints))
	case reflect.Struct:
		n := v.NumField()
		// Divide sizeLeft evenly among the struct fields.
		sizeLeft := size
		if n > sizeLeft {
			sizeLeft = 1
		} else if n > 0 {
			sizeLeft /= n
		}
		for i := 0; i < n; i++ {

	if v, ok := cacheStore.Load(schemaCacheKey); ok {
		s := v.(*Schema)
		// Wait for the initialization of other goroutines to complete
		<-s.initialized
		return s, s.err
	}

	for i := 0; i < modelType.NumField(); i++ {
		if fieldStruct := modelType.Field(i); ast.IsExported(fieldStruct.Name) {
			if field := schema.ParseField(fieldStruct); field.EmbeddedSchema != nil {

	flag := &DebugFlag{
		tab:      make(map[string]debugField),
		debugSSA: debugSSA,
	}

	v := reflect.ValueOf(debug).Elem()
	t := v.Type()
	for i := 0; i < t.NumField(); i++ {
		f := t.Field(i)
		ptr := v.Field(i).Addr().Interface()
		if f.Name == "ConcurrentOk" {
			switch ptr := ptr.(type) {
			default:
				panic("debug.ConcurrentOk must have type bool")
			case *bool:

	case reflect.Struct:
		// ObjectMeta should not have any field with the word "secret" in it;
		// it contains cycles so it's easiest to just skip it.
		if name == "ObjectMeta" {
			break
		}
		for i := 0; i < tp.NumField(); i++ {
			field := tp.Field(i)
			secretPaths.Insert(sets.List[string](collectSecretPaths(t, path.Child(field.Name), field.Name, field.Type))...)
		}
	case reflect.Interface: