[GitHub] [arrow-datafusion] thinkharderdev commented on a diff in pull request #5161: FileStream: Open next file in parallel while decoding

["thinkharderdev (via GitHub)" <gi...@apache.org>]

thinkharderdev commented on code in PR #5161:
URL: https://github.com/apache/arrow-datafusion/pull/5161#discussion_r1097237235


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datafusion/core/src/physical_plan/file_format/file_stream.rs:
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@@ -98,6 +99,8 @@ enum FileStreamState {
         partition_values: Vec<ScalarValue>,
         /// The reader instance
         reader: BoxStream<'static, Result<RecordBatch, ArrowError>>,
+        /// A [`FileOpenFuture`] for the next file to be processed
+        next: Option<(FileOpenFuture, Vec<ScalarValue>)>,

Review Comment:
   yeah, that seems like a good idea



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