rdblue commented on code in PR #6090:
URL: https://github.com/apache/iceberg/pull/6090#discussion_r1043910826
##########
core/src/main/java/org/apache/iceberg/FileCleanupStrategy.java:
##########
@@ -83,4 +85,33 @@ protected void deleteFiles(Set<String> pathsToDelete, String
fileType) {
(file, thrown) -> LOG.warn("Delete failed for {} file: {}",
fileType, file, thrown))
.run(deleteFunc::accept);
}
+
+ protected Set<String> expiredStatisticsFilesLocations(
+ TableMetadata beforeExpiration, Set<Long> validIds, Set<Long>
expiredIds) {
+ Set<String> validStatisticsFilesLocation = Sets.newHashSet();
+ for (long snapshotId : validIds) {
+ List<StatisticsFile> statisticsFiles =
+ beforeExpiration.statisticsFilesForSnapshot(snapshotId);
+ if (statisticsFiles != null) {
+ statisticsFiles.forEach(file ->
validStatisticsFilesLocation.add(file.path()));
+ }
+ }
+
+ // Statistics files can be reused in case of rewrite data files.
+ // Hence, filter out the reachable/valid statistics files.
+ Set<String> expiredStatisticsFilesLocations = Sets.newHashSet();
+ for (long snapshotId : expiredIds) {
+ List<StatisticsFile> statisticsFiles =
+ beforeExpiration.statisticsFilesForSnapshot(snapshotId);
+ if (statisticsFiles != null) {
+ statisticsFiles.forEach(
+ file -> {
+ if (!validStatisticsFilesLocation.contains(file.path())) {
+ expiredStatisticsFilesLocations.add(file.path());
+ }
+ });
+ }
+ }
+ return expiredStatisticsFilesLocations;
Review Comment:
Style: missing whitespace.
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