talatuyarer commented on code in PR #14264:
URL: https://github.com/apache/iceberg/pull/14264#discussion_r2438064764
##########
core/src/main/java/org/apache/iceberg/BaseIncrementalChangelogScan.java:
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@@ -133,13 +155,468 @@ private static Map<Long, Integer>
computeSnapshotOrdinals(Deque<Snapshot> snapsh
return snapshotOrdinals;
}
+ /**
+ * Builds a delete file index for existing deletes that were present before
the start snapshot.
+ * These deletes should be applied to data files but should not generate
DELETE changelog rows.
+ * Uses manifest pruning and caching to optimize performance.
+ */
+ private DeleteFileIndex buildExistingDeleteIndex(Long
fromSnapshotIdExclusive) {
+ if (fromSnapshotIdExclusive == null) {
+ return DeleteFileIndex.builderFor(ImmutableList.of()).build();
+ }
+
+ Snapshot fromSnapshot = table().snapshot(fromSnapshotIdExclusive);
+ if (fromSnapshot == null) {
+ return DeleteFileIndex.builderFor(ImmutableList.of()).build();
+ }
Review Comment:
I addressed this my adding precondition check.
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