assertTrue(subFilters.get(1) instanceof ColumnColumnFilter);
assertEquals(new ScalarFunctionColumn(
Lists.<AbstractColumn>newArrayList(new SimpleColumn("c8"),
new SimpleColumn("c9")), Sum.getInstance()),
((ColumnValueFilter) subFilters.get(0)).getColumn());
assertEquals(new NumberValue(0),
((ColumnValueFilter) subFilters.get(0)).getValue());
assertEquals(Sets.newHashSet("c10", "c11"),
subFilters.get(1).getAllColumnIds());
assertEquals(ComparisonFilter.Operator.EQ,
((ComparisonFilter) subFilters.get(0)).getOperator());