pepijnve opened a new pull request, #18444: URL: https://github.com/apache/datafusion/pull/18444
## Which issue does this PR close? - Part of #18075. ## Rationale for this change The `ExpressionOrExpression` case evaluation method currently uses `zip` to combine the `then` and `else` results for a batch. This requires a scatter operation to ensure the partial results are correctly lined up for the `zip` algorithm. By using a custom `merge` algorithm, this scatter step can be avoided. ## What changes are included in this PR? - Introduce a zip variant that does not require prealigning truthy and falsy result values with the mask array ## Are these changes tested? Covered by existing case tests ## Are there any user-facing changes? No -- 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]
