ArnavBalyan opened a new pull request, #9364:
URL: https://github.com/apache/paimon/pull/9364
### Purpose
- Paimon does not support null nested field reads for Parquet struct.
- Expected output should be `null` for such non existent fields however
Paimon reader fails with runtime exception.
- Add Spark handling that returns null for the missing field while
preserving the struct on output.
- When every requested field is missing, read the cheapest existing field
and use Parquet marker to understand null vs non null value.
### Tests
- UT
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