} else if len(langs) != 1 {
		t.Errorf("should only find only 1 languages, but got %+v", langs)
	}

	lang3 := Language{Code: "upsert", Name: "Upsert"}
	if err := DB.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "code"}},
		DoUpdates: clause.Assignments(map[string]interface{}{"name": "upsert-new"}),
	}).Create(&lang3).Error; err != nil {
		t.Fatalf("failed to upsert, got %v", err)
	}

	}

	if err := DB.Model(&results[1]).Clauses(clause.Returning{Columns: []clause.Column{{Name: "age"}}}).Updates(map[string]interface{}{"age": gorm.Expr("age + ?", 100)}).Error; err != nil {
		t.Errorf("Not error should happen when updating with gorm expr, but got %v", err)
	}

	if results[1].Age-results[0].Age != 100 {
		t.Errorf("failed to return updated age column")
	}
}

func TestUpdateWithDiffSchema(t *testing.T) {

    // --------------------------/

    /**
     * The one-based line number. The value will be non-positive if
     * unknown.
     */
    private int lineNumber = -1;

    /**
     * The one-based column number. The value will be non-positive
     * if unknown.
     */
    private int columnNumber = -1;

    /**
     * Field source.
     */
    private InputSource source;

    /**

                    if (problem.getColumnNumber() > 0) {
                        if (!location.isEmpty()) {
                            location += ", ";
                        }
                        location += "column " + problem.getColumnNumber();
                    }

                    if (!location.isEmpty()) {
                        buffer.append(" @ ").append(location);
                    }

    //                                                                    ================
    // -----------------------------------------------------
    //                                       Column Property
    //                                       ---------------
    protected final Map<String, PropertyGateway> _epgMap = newHashMap();
    {

	if len(defaultUpdatingColumns) > 0 || stmt.DB.FullSaveAssociations {
		onConflict.Columns = make([]clause.Column, 0, len(s.PrimaryFieldDBNames))
		for _, dbName := range s.PrimaryFieldDBNames {
			onConflict.Columns = append(onConflict.Columns, clause.Column{Name: dbName})
		}

		onConflict.UpdateAll = stmt.DB.FullSaveAssociations
		if !onConflict.UpdateAll {

		// This is a JSON object type (that preserves key
		// order)
		kvs, _ = v.Value.(jstream.KVS)
	} else {
		// To be AWS S3 compatible Select for JSON needs to
		// output non-object JSON as single column value
		// i.e. a map with `_1` as key and value as the
		// non-object.
		kvs = jstream.KVS{jstream.KV{Key: "_1", Value: v.Value}}
	}

	dstRec, ok := dst.(*Record)
	if !ok {
		dstRec = &Record{}
	}

    //                                                                    ================
    // -----------------------------------------------------
    //                                       Column Property
    //                                       ---------------
    protected final Map<String, PropertyGateway> _epgMap = newHashMap();
    {

 *       instance of {@code BiMap}.
 *   <dt>{@link Table}
 *   <dd>A new type, which is similar to {@link java.util.Map}, but which indexes its values by an
 *       ordered pair of keys, a row key and column key.
 *   <dt>{@link Multiset}
 *   <dd>An extension of {@link java.util.Collection} that may contain duplicate values like a
 *       {@link java.util.List}, yet has order-independent equality like a {@link java.util.Set}.

    /**
     * Indicates whether the model should track the line/column number of the model source from which it was parsed.
     *
     * @return {@code true} if location tracking is enabled, {@code false} otherwise.
     */
    boolean isLocationTracking();

    /**
     * Enables/disables the tracking of line/column numbers for the model source being parsed. By default, input
     * locations are not tracked.