feat: replace ExpressionA with IsNull("a") (#2651)

Closes https://github.com/apache/iceberg-python/issues/2637

# Rationale for this change

## Are these changes tested?

Yes, tests and lint passing

## Are there any user-facing changes?
1 file changed
tree: 3d3399a3c0afedb016a3b09732502cc8ba36a57b
  1. .github/
  2. dev/
  3. mkdocs/
  4. pyiceberg/
  5. tests/
  6. vendor/
  7. .asf.yaml
  8. .codespellrc
  9. .gitignore
  10. .markdownlint.yaml
  11. .pre-commit-config.yaml
  12. build-module.py
  13. LICENSE
  14. Makefile
  15. MANIFEST.in
  16. NOTICE
  17. poetry.lock
  18. pyproject.toml
  19. README.md
  20. ruff.toml
README.md

Iceberg Python

PyIceberg is a Python library for programmatic access to Iceberg table metadata as well as to table data in Iceberg format. It is a Python implementation of the Iceberg table spec.

The documentation is available at https://py.iceberg.apache.org/.

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