lyne7-sc opened a new issue, #22726:
URL: https://github.com/apache/datafusion/issues/22726
### Describe the bug
The optimizer rule that simplifies regex match operators has two bugs:
1. Anchored matches (`^...$`) on a `Utf8View` / `LargeUtf8` column fail at
execution with `Arrow error: Invalid comparison operation: Utf8View == Utf8`.
2. Case-insensitive `~*` anchored matches return wrong (incomplete) results
### To Reproduce
```sql
CREATE TABLE t(s VARCHAR) AS VALUES ('foo'), ('Bazzz');
SELECT * FROM t WHERE s ~ '^Bazzz$'; -- Bug 1: Invalid comparison
Utf8View == Utf8
SELECT * FROM t WHERE s ~* '^foo$'; -- Bug 2: case-insensitive match
returns wrong result
```
### Expected behavior
- Anchored simplification works on Utf8View / LargeUtf8 without errors.
- `~*` anchored matches return correct case-insensitive results.
### Additional context
_No response_
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