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Posted to issues@iceberg.apache.org by "drbothen (via GitHub)" <gi...@apache.org> on 2026/02/15 18:41:24 UTC
[PR] feat(transaction): add ExpireSnapshotsAction for snapshot lifecycle management [iceberg-rust]
drbothen opened a new pull request, #2146:
URL: https://github.com/apache/iceberg-rust/pull/2146
## Which issue does this PR close?
- Closes #2145
- Ref #1454, #884
## What changes are included in this PR?
Adds `ExpireSnapshotsAction` to the transaction API, enabling removal of old snapshots from table metadata. Key features:
- **Explicit expiry**: Expire specific snapshot IDs via `expire_snapshot_ids()`
- **Age-based expiry**: Expire snapshots older than a timestamp via `expire_older_than_ms()`
- **Safety guarantees**: Current snapshot is never expired; `retain_last(n)` ensures a minimum number of snapshots survive
- **File cleanup utility**: `find_unreferenced_files()` identifies data files, manifests, and manifest lists that are only referenced by expired snapshots and can be safely deleted after commit
The action returns a `RemoveSnapshots` table update and does NOT delete physical files directly, following the Iceberg principle of metadata-first operations.
## Are these changes tested?
Yes — 5 unit tests covering:
- Current snapshot protection
- Age-based expiry
- `retain_last` enforcement
- No-op when nothing to expire
- `find_unreferenced_files` with carried-forward files
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Re: [PR] feat(transaction): add ExpireSnapshotsAction for snapshot lifecycle management [iceberg-rust]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed pull request #2146: feat(transaction): add ExpireSnapshotsAction for snapshot lifecycle management
URL: https://github.com/apache/iceberg-rust/pull/2146
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Re: [PR] feat(transaction): add ExpireSnapshotsAction for snapshot lifecycle management [iceberg-rust]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #2146:
URL: https://github.com/apache/iceberg-rust/pull/2146#issuecomment-4130712869
This pull request has been closed due to lack of activity. This is not a judgement on the merit of the PR in any way. It is just a way of keeping the PR queue manageable. If you think that is incorrect, or the pull request requires review, you can revive the PR at any time.
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