the results is different from expr_pushdown

[ChenPeng2013]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1 tidb
1 pd
1 tikv

use test;
drop table if exists IDT_MULTI15694STROBJSTROBJ;
CREATE TABLE `IDT_MULTI15694STROBJSTROBJ` (
  `COL2` tinyint(41) DEFAULT NULL,
  `COL3` datetime(5) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;
insert into IDT_MULTI15694STROBJSTROBJ values(-125, "9347-10-13 11:01:49.00000"), (-56, "6577-08-23 06:26:51.00000");
SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;
INSERT INTO mysql.expr_pushdown_blacklist VALUES('<','tikv',''), ('/','tikv','');
ADMIN reload expr_pushdown_blacklist;
SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;

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

mysql> SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;
Empty set (0.00 sec)

mysql> INSERT INTO mysql.expr_pushdown_blacklist VALUES('<','tikv',''), ('/','tikv','');
Query OK, 2 rows affected (0.01 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql> ADMIN reload expr_pushdown_blacklist;
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;
Empty set (0.00 sec)

3. What did you see instead (Required)

mysql> SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;
+------+---------------------------+
| COL2 | COL3                      |
+------+---------------------------+
| -125 | 9347-10-13 11:01:49.00000 |
|  -56 | 6577-08-23 06:26:51.00000 |
+------+---------------------------+
2 rows in set (0.00 sec)

mysql> INSERT INTO mysql.expr_pushdown_blacklist VALUES('<','tikv',''), ('/','tikv','');
Query OK, 2 rows affected (0.01 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql> ADMIN reload expr_pushdown_blacklist;
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT * FROM IDT_MULTI15694STROBJSTROBJ WHERE COL2 - -126 < 649680178125 AND COL2 / 489466941506 != 0;
Empty set (0.00 sec)

4. What is your TiDB version? (Required)

Release Version: v5.4.0-alpha-49-g49d995d57
Edition: Community
Git Commit Hash: 49d995d577f64b79168a145cb5be45151ebb557a
Git Branch: master
UTC Build Time: 2021-11-08 10:12:15
GoVersion: go1.16.4
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false

[github-actions]

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