adnanhemani commented on code in PR #1508:
URL: https://github.com/apache/polaris/pull/1508#discussion_r2072263189
##########
service/common/src/main/java/org/apache/polaris/service/task/TableCleanupTaskHandler.java:
##########
@@ -243,12 +243,13 @@ private Stream<TaskEntity> getMetadataTaskStream(
private List<List<String>> getMetadataFileBatches(TableMetadata
tableMetadata, int batchSize) {
List<List<String>> result = new ArrayList<>();
List<String> metadataFiles =
- Stream.concat(
- Stream.concat(
- tableMetadata.previousFiles().stream()
- .map(TableMetadata.MetadataLogEntry::file),
-
tableMetadata.snapshots().stream().map(Snapshot::manifestListLocation)),
-
tableMetadata.statisticsFiles().stream().map(StatisticsFile::path))
+ Stream.of(
+
tableMetadata.previousFiles().stream().map(TableMetadata.MetadataLogEntry::file),
+
tableMetadata.snapshots().stream().map(Snapshot::manifestListLocation),
+
tableMetadata.statisticsFiles().stream().map(StatisticsFile::path),
+ tableMetadata.partitionStatisticsFiles().stream()
+ .map(PartitionStatisticsFile::path))
+ .flatMap(s -> s)
Review Comment:
What does this line achieve? Does `tableMetadata.partitionStatisticsFiles()`
return back a Stream of Streams?
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