Comment 1 for bug 636516

Added support :

    @Test
    public void mergeBatch(){
        SQLMergeClause merge = merge(survey)
            .keys(survey.id)
            .set(survey.id, 5)
            .set(survey.name, "5")
            .addBatch();

        merge
            .keys(survey.id)
            .set(survey.id, 6)
            .set(survey.name, "6")
            .addBatch();

        assertEquals(2, merge.execute());
    }