Fokko commented on issue #1973:
URL:
https://github.com/apache/iceberg-python/issues/1973#issuecomment-2856216333
Hey @smaheshwar-pltr Thanks for bringing this up.
> I'm therefore wondering about "versioning" `Snapshot` similar to
`TableMetadata`, so that V3 `TableMetadata` would contain a list of V3
`Snapshot`s.
The problem is that from the moment we upgrade a table from `{V1,V2}` to V3,
the field is not there, so we still would run into deserialization issues. For
simplicity, I'm leaning towards not versioning because we still would need to
check if the fields are not-null, as they stay null after bumping the version
to V3: https://iceberg.apache.org/spec/#row-lineage-for-upgraded-tables
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