new Column[]{
qf.column(SELECTOR_1, propertyName1, columnName1),
qf.column(SELECTOR_2, propertyName1, columnName2)
}
);
RowIterator rows = qom.execute().getRows();
assertTrue("empty result", rows.hasNext());
Row r = rows.nextRow();
assertEquals("unexpected value", TEST_VALUE, r.getValue(columnName1).getString());
assertEquals("unexpected value", TEST_VALUE, r.getValue(columnName2).getString());
}