featzhang commented on PR #28140:
URL: https://github.com/apache/flink/pull/28140#issuecomment-4426218953
Sorry for the verbose comment above. TL;DR:
The Python test at `pyflink/table/tests/test_expression.py:198` needs
updating:
```python
- self.assertEqual('regexpExtract(a, b)', str(expr1.regexp_extract(expr2)))
+ self.assertEqual('REGEXP_EXTRACT(a, b)', str(expr1.regexp_extract(expr2)))
```
The function name changed from camelCase to uppercase to match other regex
functions.
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