Github user steveloughran commented on the issue: https://github.com/apache/spark/pull/14731 Sean, I think I've managed to delete the lines where you were asking about globs > Am I right that the net change here is not an optimization but an expansion of the behavior to support globs rather than single dirs? There's no changes in this source to change the expansion policy; that went in with [SPARK-14976](https://issues.apache.org/jira/browse/SPARK-14976), "make StreamingContext.textFileStream support wildcard". This updates the docs to cover what goes on (the wildcard covering directories, but not the files inside them), and makes the scan much more efficient on object stores. No changes in the semantics of what gets found or when things get found
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