findinpath commented on code in PR #18359:
URL: https://github.com/apache/iceberg/pull/18359#discussion_r4219201593
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core/src/main/java/org/apache/iceberg/DeleteFileIndex.java:
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@@ -519,6 +514,24 @@ private Collection<DeleteFile> loadDeleteFiles() {
return files;
}
+ /** Copies a delete file with the minimum stats needed for indexing to
limit memory use. */
+ private static DeleteFile copyWithMinStats(DeleteFile file) {
+ if (file.content() == FileContent.EQUALITY_DELETES) {
+ // copy with stats for better filtering against data file stats
+ return file.copyWithStats(Set.copyOf(file.equalityFieldIds()));
+ }
Review Comment:
see https://github.com/apache/iceberg/pull/18338#discussion_r4211809488
This changes what DeleteFile.lowerBounds()/valueCounts()/nullValueCounts()
return, not just how they're used for predicate matching.
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