RussellSpitzer commented on code in PR #15006:
URL: https://github.com/apache/iceberg/pull/15006#discussion_r2695150015
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core/src/main/java/org/apache/iceberg/MergingSnapshotProducer.java:
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@@ -1073,6 +1088,139 @@ private List<ManifestFile> newDeleteFilesAsManifests() {
return cachedNewDeleteManifests;
}
+ // Merge duplicates, internally takes care of updating newDeleteFilesBySpec
to remove
+ // duplicates and add the newly merged DV
+ private void mergeDVsAndWrite() {
+ Map<Integer, List<MergedDVContent>> mergedIndicesBySpec =
Maps.newConcurrentMap();
+
+ Tasks.foreach(dvsByReferencedFile.entrySet())
Review Comment:
Filter for duplicates first, otherwise we spend a lot of context shifts here
for nothing.
Ie
duplicates = Entires.filter(dvs.size >= 2)
Threads.foreach(duplicates)
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