Dandandan opened a new issue #904: URL: https://github.com/apache/arrow-datafusion/issues/904
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** If both the number of rows and the number of nulls are available as statistic, we can compute the value based on statistics only when reading. `row_count - null_count(row)` **Describe the solution you'd like** Add an optimization rule that matches this count expression with column and use the statistics to replace it with the value. **Describe alternatives you've considered** **Additional context** -- 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]
