dcv0.vector[1] = 20;
dcv0.vector[2] = 17;
dcv0.vector[3] = 15;
dcv0.vector[4] = 10;
VectorExpression expr = new FilterDoubleColumnBetween(0, 20, 21);
expr.evaluate(vrb);
assertEquals(1, vrb.size);
assertTrue(vrb.selectedInUse);
assertEquals(1, vrb.selected[0]);
}