tx.Statement.Distinct = true
	if len(args) > 0 {
		tx = tx.Select(args[0], args[1:]...)
	}
	return
}

// Select specify fields that you want when querying, creating, updating
//
// Use Select when you only want a subset of the fields. By default, GORM will select all fields.
// Select accepts both string arguments and arrays.
//
//	// Select name and age of user using multiple arguments

				}
			}

			for _, name := range []string{f.DBName, f.Name} {
				if name != "" {
					if field := s.LookUpField(name); field == nil || (field.Name != name && field.DBName != name) {
						t.Errorf("schema %v failed to look up field with dbname %v", s, f.DBName)
					}
				}
			}

			if f.PrimaryKey {
				var found bool

						obj := db.Statement.ReflectValue.Index(i)
						if reflect.Indirect(obj).Kind() != reflect.Struct {
							break
						}
						if _, zero := rel.Field.ValueOf(db.Statement.Context, obj); !zero { // check belongs to relation value
							rv := rel.Field.ReflectValueOf(db.Statement.Context, obj) // relation reflect value
							if !isPtr {
								rv = rv.Addr()
							}
							objs = append(objs, obj)

				{Field: &schema.Field{Name: "FieldD"}},
			},
		},
		"uniq_field_e1_e2": {
			Name:  "uniq_field_e1_e2",
			Class: "UNIQUE",
			Fields: []schema.IndexOption{
				{Field: &schema.Field{Name: "FieldE1"}},
				{Field: &schema.Field{Name: "FieldE2"}},
			},
		},
		"idx_index_tests_field_f1": {
			Name:   "idx_index_tests_field_f1",
			Fields: []schema.IndexOption{{Field: &schema.Field{Name: "FieldF1"}}},
		},

	expr.SQL = m.DataTypeOf(field)

	if field.NotNull {
		expr.SQL += " NOT NULL"
	}

	if field.HasDefaultValue && (field.DefaultValueInterface != nil || field.DefaultValue != "") {
		if field.DefaultValueInterface != nil {
			defaultStmt := &gorm.Statement{Vars: []interface{}{field.DefaultValueInterface}}
			m.Dialector.BindVarTo(defaultStmt, defaultStmt, field.DefaultValueInterface)

		expr := clause.Expr{SQL: "count(*)"}

		if len(tx.Statement.Selects) == 1 {
			dbName := tx.Statement.Selects[0]
			fields := strings.FieldsFunc(dbName, utils.IsValidDBNameChar)
			if len(fields) == 1 || (len(fields) == 3 && (strings.ToUpper(fields[1]) == "AS" || fields[1] == ".")) {
				if tx.Statement.Parse(tx.Statement.Model) == nil {
					if f := tx.Statement.Schema.LookUpField(dbName); f != nil {

	// ErrModelValueRequired model value required
	ErrModelValueRequired = errors.New("model value required")
	// ErrModelAccessibleFieldsRequired model accessible fields required
	ErrModelAccessibleFieldsRequired = errors.New("model accessible fields required")
	// ErrSubQueryRequired sub query required
	ErrSubQueryRequired = errors.New("sub query required")
	// ErrInvalidData unsupported data

					idx.Option = index.Option
				}

				idx.Fields = append(idx.Fields, index.Fields...)
				sort.Slice(idx.Fields, func(i, j int) bool {
					return idx.Fields[i].priority < idx.Fields[j].priority
				})

				indexes[index.Name] = idx
			}
		}
	}
	for _, index := range indexes {
		if index.Class == "UNIQUE" && len(index.Fields) == 1 {
			index.Fields[0].Field.UniqueIndex = index.Name
		}
	}
	return indexes
}

package gorm

import "time"

// Model a basic GoLang struct which includes the following fields: ID, CreatedAt, UpdatedAt, DeletedAt
// It may be embedded into your model or you may build your own model without it
//
//	type User struct {
//	  gorm.Model
//	}
type Model struct {
	ID        uint `gorm:"primarykey"`
	CreatedAt time.Time
	UpdatedAt time.Time
	DeletedAt DeletedAt `gorm:"index"`

// GetIdentityFieldValuesMapFromValues get identity map from fields
func GetIdentityFieldValuesMapFromValues(ctx context.Context, values []interface{}, fields []*Field) (map[string][]reflect.Value, [][]interface{}) {
	resultsMap := map[string][]reflect.Value{}
	results := [][]interface{}{}

	for _, v := range values {
		rm, rs := GetIdentityFieldValuesMap(ctx, reflect.Indirect(reflect.ValueOf(v)), fields)
		for k, v := range rm {