alamb opened a new issue, #21880: URL: https://github.com/apache/datafusion/issues/21880
### Is your feature request related to a problem or challenge? Several DataFusion PRs ([#21464](https://github.com/apache/datafusion/pull/21464), [#21468](https://github.com/apache/datafusion/pull/21468), [#21471](https://github.com/apache/datafusion/pull/21471), [#21475](https://github.com/apache/datafusion/pull/21475), [#21477](https://github.com/apache/datafusion/pull/21477), [#21482](https://github.com/apache/datafusion/pull/21482), [#21532](https://github.com/apache/datafusion/pull/21532)) optimize NULL handling in scalar functions by replacing row-by-row null buffer construction with bulk `NullBuffer::union`. When 3+ null buffers need combining, they chain binary `union` calls, each allocating a new `BooleanBuffer`. @mbutrovich added a new `NullBuffer::union_many` API in arrow 58.2.0 that avoids this allocation - https://github.com/apache/arrow-rs/pull/9692 ### Describe the solution you'd like Use `NullBuffer::union_many` instead of `NullBuffer::union` when unioning together multiple buffers ### Describe alternatives you've considered _No response_ ### Additional context _No response_ -- 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]
