Ted-Jiang opened a new issue, #2358: URL: https://github.com/apache/arrow-rs/issues/2358
The skip records API added to the ArrayReader trait as part of https://github.com/apache/arrow-rs/pull/1998 does not provide a way to combine multiple selections into the same batch. This is unfortunate as columnar query engines will often want consistently large RecordBatch so that any dispatch overheads can be amortised over many rows. Whilst it could concatenate batches together, e.g. DataFusion's CoalesceBatchesExec, it would be more efficient to do this directly on read and eliminate an additional copy. _Originally posted by @tustvold in https://github.com/apache/arrow-rs/issues/2197#issuecomment-1197934926_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
