incorrect tableDual plan caused by comparing year with big value

[wjhuang2016]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

CREATE TABLE `tlff7fd271` (
  `col_45` bit(3) NOT NULL DEFAULT b'101',
  `col_46` year(4) NOT NULL DEFAULT '2016',
  `col_47` double NOT NULL DEFAULT '2508.393214016021',
  `col_48` timestamp NOT NULL DEFAULT '2025-11-27 00:00:00',
  KEY `idx_15` (`col_45`,`col_47`),
  PRIMARY KEY (`col_46`,`col_45`,`col_48`) /*T![clustered_index] NONCLUSTERED */,
  KEY `idx_17` (`col_45`,`col_46`,`col_47`),
  UNIQUE KEY `idx_18` (`col_45`,`col_48`,`col_46`)
);
desc SELECT `tlff7fd271`.`col_46` AS `r0` FROM `tlff7fd271` where `col_46` <= 16212511333665770580;

2. What did you expect to see? (Required)

TableScan or IndexScan

3. What did you see instead (Required)

mysql> desc SELECT `tlff7fd271`.`col_46` AS `r0` FROM `tlff7fd271` where `col_46` <= 16212511333665770580;
+-------------+---------+------+---------------+---------------+
| id          | estRows | task | access object | operator info |
+-------------+---------+------+---------------+---------------+
| TableDual_5 | 0.00    | root |               | rows:0        |
+-------------+---------+------+---------------+---------------+
1 row in set (0.00 sec)

4. What is your TiDB version? (Required)

182efd8

[kennedy8312]

Seeing the same issue on v5.4.0 as well.

[qw4990]

The minimum reproducible case:

mysql> create table tt (c year(4) NOT NULL DEFAULT '2016', primary key(c));
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> show warnings;
+---------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Level   | Code | Message                                                                                                                                                                   |
+---------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Warning | 1681 | The ZEROFILL attribute is deprecated and will be removed in a future release. Use the LPAD function to zero-pad numbers, or store the formatted numbers in a CHAR column. |
+---------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> select * from tt where c < 16212511333665770580;
Empty set (0.00 sec)

mysql> explain select * from tt where c < 16212511333665770580;
+-------------+---------+------+---------------+---------------+
| id          | estRows | task | access object | operator info |
+-------------+---------+------+---------------+---------------+
| TableDual_5 | 0.00    | root |               | rows:0        |
+-------------+---------+------+---------------+---------------+
1 row in set (0.00 sec)

mysql> insert into tt values (2016);
Query OK, 1 row affected (0.00 sec)

mysql>  select * from tt where c < 16212511333665770580;
Empty set (0.00 sec)