public static Map<String, PartitionColumnFilter> convertColumnFilter(List<ScalarOperator> predicates) {
        return convertColumnFilter(predicates, null);
    }
@Test
    public void convertColumnFilterExpr() {
        List<ScalarOperator> list = buildOperator("day", BinaryType.EQ);
        Map<String, PartitionColumnFilter> result = ColumnFilterConverter.convertColumnFilter(list);
        assertEquals(0, result.size());

        OlapTable olapTable = buildOlapTable("day");
        Map<String, PartitionColumnFilter> result1 = ColumnFilterConverter.convertColumnFilter(list, olapTable);
        assertEquals(1, result1.size());
    }