liurenjie1024 commented on issue #32: URL: https://github.com/apache/iceberg-rust/issues/32#issuecomment-1698421451
> Do you think it's possible to use the capabilities of the query engine to repartition the data? Maybe there are some optimizations that can be performed if this is expressed as an Repartition Operator. Yeah, it's possible. However, usually we don't bind compute task to one partition of storage format, since the parallelism of of compute tasks is determined by many factors, not just table partition. I think the hierarchy of iceberg's `TaskWriter` explains things well enough: <img width="461" alt="image" src="https://github.com/apache/iceberg-rust/assets/2771941/f8fb3128-d22f-4e0b-80c0-9592f075e748";> `PartitionedWriter` is used when data is partitioned and sorted according to partition value. `PartitionedFanoutWriter` is used when data not partitioned by shuffle, and need to be precessed in writer. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
