apache / apache/iceberg-python
Possible read-after-write consistency issue with multiple schema migration steps in Iceberg tables on AWS Glue + S3
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- Python
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Description
### Apache Iceberg version
Pyiceberg 0.10.0
Pyiceberg-core 0.6.0
### Please describe the bug 🐞
This may be a hard one to pin down but I noticed that multiple schema migration steps executed sequentially in the same `update_schema` context *sometimes* result in Exceptions like column name not found when using Iceberg tables on AWS Glue. An example:
```python
with table.update_schema() as update:
update.rename_column("some_column", "renamed_column")
update.move_first("renamed_column") # this sometimes fails with an error
# that renamed column doesn't exist
```
I have not noticed it with other back-ends like SQLite, leading me to believe it is a Glue issue specifically where a write may not yet be reflected by the time of the next operation.
### Willingness to contribute
- [ ] I can contribute a fix for this bug independently
- [x] I would be willing to contribute a fix for this bug with guidance from the Iceberg community
- [ ] I cannot contribute a fix for this bug at this time
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