alamb opened a new issue #369: URL: https://github.com/apache/arrow-datafusion/issues/369
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** The name `MergeExec` has long confused me. The name `MergeExec` implies to me that its purpose is to "merge sorted streams" into another sorteds stream However, `MergeExec` does something more like `UNION ALL` of streams into a single stream, combining the input streams in some arbitrary output order. Something that looks to me like an actual "merge" operation is described in https://github.com/apache/arrow-datafusion/issues/362. **Describe the solution you'd like** I propose renaming `MergeExec` to `UnionToSingleStreamExec` to make it clearer It could also potentially combined with the existing `UnionExec` (which preserves partitioning) as another flag **Describe alternatives you've considered** As this would be a fairly invasive (and backwards incompatible change) leaving the current naming is also a possibility. -- 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. For queries about this service, please contact Infrastructure at: [email protected]
