amogh-jahagirdar commented on code in PR #15006:
URL: https://github.com/apache/iceberg/pull/15006#discussion_r2847747416
##########
core/src/main/java/org/apache/iceberg/MergingSnapshotProducer.java:
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@@ -1065,9 +1062,34 @@ private List<ManifestFile> newDeleteFilesAsManifests() {
}
if (cachedNewDeleteManifests.isEmpty()) {
+ for (Map.Entry<String, List<DeleteFile>> entry :
dvsByReferencedFile.entrySet()) {
+ if (entry.getValue().size() > 1) {
+ LOG.warn(
+ "Attempted to commit {} duplicate DVs for data file {} in table
{}. "
+ + "Merging duplicates, and original DVs will be orphaned.",
+ entry.getValue().size(),
+ entry.getKey(),
+ tableName);
+ }
+ }
+
+ List<DeleteFile> finalDVs =
+ DVUtil.mergeAndWriteDvsIfRequired(
+ dvsByReferencedFile,
+ ThreadPools.getDeleteWorkerPool(),
+ ops().locationProvider(),
+ ops().encryption(),
+ ops().io(),
+ ops().current().specsById());
+ // Prevent commiting duplicate V2 deletes by deduping them
+ Map<Integer, List<DeleteFile>> newDeleteFilesBySpec =
+ Streams.stream(Iterables.concat(finalDVs,
DeleteFileSet.of(positionAndEqualityDeletes)))
+ .map(file -> Delegates.pendingDeleteFile(file,
file.dataSequenceNumber()))
Review Comment:
I've fixed this so that `v2Deletes` (formerly positionAndEqualityDeletes) is
no longer wrapped.
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