Incompatible query result

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

```SQL
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 DECIMAL );
INSERT INTO t1 VALUES (1);
SELECT c1 FROM t1 WHERE NOT (CAST(COS(c1 IS NOT NULL) AS DATETIME)); -- actual: {1}, expected: {}
```
### 2. What did you expect to see? (Required)
SELECT returns {}
### 3. What did you see instead (Required)
SELECT returns {1}
### 4. What is your TiDB version? (Required)

Release Version: v7.2.0
Edition: Community
Git Commit Hash: 9fd5f4a8e4f273a60fbe7d3848f85a1be8f0600b
Git Branch: heads/refs/tags/v7.2.0
UTC Build Time: 2023-06-27 15:04:42
GoVersion: go1.20.5
Race Enabled: false
Check Table Before Drop: false
Store: tikv