dongjoon-hyun commented on code in PR #44636:
URL: https://github.com/apache/spark/pull/44636#discussion_r1470701871
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/FileStreamSource.scala:
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@@ -166,6 +197,25 @@ class FileStreamSource(
// implies "sourceOptions.latestFirst = true" which we want to refresh
the list per batch
(newFiles.take(files.maxFiles()), null)
+ case files: ReadMaxBytes if !sourceOptions.latestFirst =>
+ // we can cache and reuse remaining fetched list of files in further
batches
+ val (FilesSplit(bFiles, _), FilesSplit(usFiles, rSize)) =
+ takeFilesUntilMax(newFiles, files.maxBytes())
+ if (rSize < (files.maxBytes() * DISCARD_UNSEEN_FILES_RATIO).toLong) {
Review Comment:
`.toLong` is required here?
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