stevenzwu commented on code in PR #13222:
URL: https://github.com/apache/iceberg/pull/13222#discussion_r2190783604
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core/src/main/java/org/apache/iceberg/ManifestFilterManager.java:
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@@ -224,7 +235,9 @@ List<ManifestFile> filterManifests(Schema tableSchema,
List<ManifestFile> manife
private boolean canTrustManifestReferences(List<ManifestFile> manifests) {
Set<String> manifestLocations =
manifests.stream().map(ManifestFile::path).collect(Collectors.toSet());
- return allDeletesReferenceManifests &&
manifestLocations.containsAll(manifestsWithDeletes);
Review Comment:
The boolean `trustManifestReferences` is used by `canContainDeletedFiles`
method.
When `trustManifestReferences` is true (old behavior), this code would
return false since `manifestsWithDeletes` is empty.
```
if (trustManifestReferences) {
return manifestsWithDeletes.contains(manifest.path());
}
```
When `trustManifestReferences` is false (new behavior), the above code won't
be returned. So it went on to execute this block.
```
return canContainDroppedFiles(manifest)
|| canContainExpressionDeletes(manifest)
|| canContainDroppedPartitions(manifest);
```
Seems that new behavior is the correct behavior
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