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Posted to github@datafusion.apache.org by "andygrove (via GitHub)" <gi...@apache.org> on 2025/01/08 16:46:21 UTC
[I] Optimize repartitioning logic in ShuffleWriterExec using interleave_record_batch [datafusion-comet]
andygrove opened a new issue, #1235:
URL: https://github.com/apache/datafusion-comet/issues/1235
### What is the problem the feature request solves?
In ShfufleWriterExec, we copy data from each input RecordBatch into array builders for each partition and once a partition reaches the specified row count, we create an output batch.
Arrow provides an `interleave_record_batch` kernel that we could potentially use instead of the builder approach.
https://docs.rs/arrow/latest/arrow/compute/fn.interleave_record_batch.html
### Describe the potential solution
Let's POC this and see if it helps with performance.
### Additional context
_No response_
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Re: [I] Optimize repartitioning logic in ShuffleWriterExec using interleave_record_batch [datafusion-comet]
Posted by "andygrove (via GitHub)" <gi...@apache.org>.
andygrove closed issue #1235: Optimize repartitioning logic in ShuffleWriterExec using interleave_record_batch
URL: https://github.com/apache/datafusion-comet/issues/1235
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Re: [I] Optimize repartitioning logic in ShuffleWriterExec using interleave_record_batch [datafusion-comet]
Posted by "andygrove (via GitHub)" <gi...@apache.org>.
andygrove commented on issue #1235:
URL: https://github.com/apache/datafusion-comet/issues/1235#issuecomment-2578168997
Related: https://github.com/apache/arrow-rs/issues/6692
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