func NestedRelationName(prefix, name string) string {
	return prefix + nestedRelationSplit + name
}

// SplitNestedRelationName Split nested relationships to `[]string{"Manager","Company"}`
func SplitNestedRelationName(name string) []string {
	return strings.Split(name, nestedRelationSplit)
}

// JoinNestedRelationNames nested relationships like `Manager__Company`

		for _, join := range joins {
			if _, ok := relationships.Relations[join]; ok && name == join {
				joined = true
				continue
			}
			joinNames := strings.SplitN(join, ".", 2)
			if len(joinNames) == 2 {
				if _, ok := relationships.Relations[joinNames[0]]; ok && name == joinNames[0] {
					joined = true
					nestedJoins = append(nestedJoins, joinNames[1])
				}
			}

					if ok {
						isRelations = true
						relations = append(relations, relation)
					} else {
						// handle nested join like "Manager.Company"
						nestedJoinNames := strings.Split(join.Name, ".")
						if len(nestedJoinNames) > 1 {
							isNestedJoin := true
							gussNestedRelations := make([]*schema.Relationship, 0, len(nestedJoinNames))

}

func getFuncName(fc interface{}) string {
	reflectValue, ok := fc.(reflect.Value)
	if !ok {
		reflectValue = reflect.ValueOf(fc)
	}

	fnames := strings.Split(runtime.FuncForPC(reflectValue.Pointer()).Name(), ".")
	return fnames[len(fnames)-1]
}

func c1(*gorm.DB) {}
func c2(*gorm.DB) {}
func c3(*gorm.DB) {}
func c4(*gorm.DB) {}
func c5(*gorm.DB) {}

			if results[1] != "" {
				tx.Statement.Table = results[1]
			} else {
				tx.Statement.Table = results[2]
			}
		}
	} else if tables := strings.Split(name, "."); len(tables) == 2 {
		tx.Statement.TableExpr = &clause.Expr{SQL: tx.Statement.Quote(name)}
		tx.Statement.Table = tables[1]
	} else if name != "" {
		tx.Statement.TableExpr = &clause.Expr{SQL: tx.Statement.Quote(name)}

	for _, value := range strings.Split(field.Tag.Get("gorm"), ";") {
		if value != "" {
			v := strings.Split(value, ":")
			k := strings.TrimSpace(strings.ToUpper(v[0]))
			if k == "INDEX" || k == "UNIQUEINDEX" {
				var (
					name       string
					tag        = strings.Join(v[1:], ":")
					idx        = strings.Index(tag, ",")
					tagSetting = strings.Join(strings.Split(tag, ",")[1:], ",")

	settings := map[string]string{}
	names := strings.Split(str, sep)

	for i := 0; i < len(names); i++ {
		j := i
		if len(names[j]) > 0 {
			for {
				if names[j][len(names[j])-1] == '\\' {
					i++
					names[j] = names[j][0:len(names[j])-1] + sep + names[i]
					names[i] = ""
				} else {
					break
				}
			}
		}

		values := strings.Split(names[j], ":")

func (ns CustomizedNamingStrategy) ColumnName(table, column string) string {
	baseColumnName := ns.NamingStrategy.ColumnName(table, column)

	if table == "" {
		return baseColumnName
	}

	s := strings.Split(table, "_")

	var prefix string
	switch len(s) {
	case 1:
		prefix = s[0][:3]
	case 2:
		prefix = s[0][:1] + s[1][:2]
	default:
		prefix = s[0][:1] + s[1][:1] + s[2][:1]
	}

	if stmt.Schema, err = schema.ParseWithSpecialTableName(value, stmt.DB.cacheStore, stmt.DB.NamingStrategy, specialTableName); err == nil && stmt.Table == "" {
		if tables := strings.Split(stmt.Schema.Table, "."); len(tables) == 2 {
			stmt.TableExpr = &clause.Expr{SQL: stmt.Quote(stmt.Schema.Table)}
			stmt.Table = tables[1]
			return
		}

		stmt.Table = stmt.Schema.Table
	}
	return err

func (schema *Schema) ParseCheckConstraints() map[string]CheckConstraint {
	checks := map[string]CheckConstraint{}
	for _, field := range schema.FieldsByDBName {
		if chk := field.TagSettings["CHECK"]; chk != "" {
			names := strings.Split(chk, ",")
			if len(names) > 1 && regEnLetterAndMidline.MatchString(names[0]) {
				checks[names[0]] = CheckConstraint{Name: names[0], Constraint: strings.Join(names[1:], ","), Field: field}
			} else {
				if names[0] == "" {