},
		{
			"name":    "dog",
			"user_id": gorm.Expr("@uid"),
		},
	})

	if !regexp.MustCompile(`INSERT INTO .pets. \(.name.,.user_id.\) .*VALUES \(.+,\(SELECT @uid:=id FROM \(SELECT id FROM .users. WHERE name=.+\) as tmp\)\),\(.+,@uid\)`).MatchString(result.Statement.SQL.String()) {
		t.Errorf("invalid insert SQL, got %v", result.Statement.SQL.String())
	}
}

func TestCreateNilPointer(t *testing.T) {
	var user *User

	}

	r = dryDB.Create(&UserWithTable{}).Statement
	if DB.Dialector.Name() != "sqlite" {
		if !regexp.MustCompile(`INSERT INTO .gorm.\..user. (.*name.*) VALUES (.*)`).MatchString(r.Statement.SQL.String()) {
			t.Errorf("Table with escape character, got %v", r.Statement.SQL.String())
		}
	} else {
		if !regexp.MustCompile(`INSERT INTO .user. (.*name.*) VALUES (.*)`).MatchString(r.Statement.SQL.String()) {

					}
					db.Statement.AddClause(clause.Returning{Columns: fromColumns})
				}
			}
		}

		if db.Statement.SQL.Len() == 0 {
			db.Statement.SQL.Grow(180)
			db.Statement.AddClauseIfNotExists(clause.Insert{})
			db.Statement.AddClause(ConvertToCreateValues(db.Statement))

			db.Statement.Build(db.Statement.BuildClauses...)
		}

		isDryRun := !db.DryRun && db.Error == nil
		if !isDryRun {
			return
		}

	// create
	user := &User{Name: "foo", Age: 20}
	user.CreatedAt = date
	user.UpdatedAt = date
	sql = DB.ToSQL(func(tx *gorm.DB) *gorm.DB {
		return tx.Model(&User{}).Create(user)
	})
	assertEqualSQL(t, `INSERT INTO "users" ("created_at","updated_at","deleted_at","name","age","birthday","company_id","manager_id","active") VALUES ('2021-10-18 00:00:00','2021-10-18 00:00:00',NULL,'foo',20,NULL,NULL,NULL,false) RETURNING "id"`, sql)

	// save

	}

	newLang := Language{Code: "omitmany2many", Name: "omitmany2many"}
	if err := DB.Model(&user).Omit("Languages.*").Association("Languages").Replace(&newLang); err == nil {
		t.Errorf("should failed to insert languages due to constraint failed, error: %v", err)
	}
}

func TestMany2ManyAssociationForSlice(t *testing.T) {
	users := []User{
		*GetUser("slice-many2many-1", Config{Languages: 2}),