neilconway opened a new issue, #25078: URL: https://github.com/apache/datafusion/issues/25078
### Is your feature request related to a problem or challenge? For lists of scalar elements (i.e., for anything except for lists-of-lists), we can compute `cardinality` by looking at the offsets in the `GenericListArray`. The current implementation creates a new array slice for every row and then fetches the length of the slice, which involves a lot of unnecessary per-row overhead. ### Describe the solution you'd like _No response_ ### 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]
