vovacf201 opened a new pull request, #2217:
URL: https://github.com/apache/iceberg-rust/pull/2217
## Which issue does this PR close?
Add RewriteManifestsAction for reorganizing manifest files without
changing underlying data files. Supports custom clustering functions,
manifest predicates, and manual manifest add/delete operations.
## Known limitations
- Delete manifests (ManifestContentType::Deletes) are never rewritten,
they are always kept as-is
- target_size_bytes is accepted but not enforced; manifests are not
split when they exceed the target size
- No automatic manifest merging or compaction heuristics; without a
cluster_by function the action only supports manual add/delete of
whole manifests
- Dead entries (deleted/overwritten files) are silently dropped during
rewrite rather than preserved, which loses tombstone history
- No parallelism: manifests are read and rewritten sequentially
- Old rewritten manifest files are not cleaned up from storage
## Are these changes tested?
Manually on staging.
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