Hi Everyone! PR: https://github.com/apache/iceberg/pull/11976/files
Split out from #11948 <https://github.com/apache/iceberg/pull/11948> Working on the row-lineage implementation made it clear that we needed a way to get information from the Snapshot object propagated into the Metadata layer. Specifically we need to know the count of all newly added rows in that Snapshot to change the last-row-id of the TableMetadata. While we can potentially read this from Snapshot Summary, it would be a bit odd to have a requirement on key value pair within Snapshot summary. We could also potentially re-read and calculate the number of added rows, but this would require re-opening the manifest list itself. I believe it makes more sense to formally have added-rows as an optional field within the Snapshot itself so we can make it clear in the spec this value is expected to be stored within the Snapshot metadata if row-lineage is enabled. Please take a look at the PR and signal vote or not you approve of adding this additional field to Snapshot
