findepi commented on issue #14408: URL: https://github.com/apache/datafusion/issues/14408#issuecomment-2629542547
> Physical input schema should be the same as the one converted from logical input schema. > Differences: > - field nullability at index 7 [#98]: (physical) false vs (logical) true. I think this should be allowed, especially since we run further optimizations on the physical plans. For example a query ``` SELECT nullable_value FROM ... UNOIN ALL SELECT non_null_value FROM ... ``` may have it's first union branch eventually eliminated at some point, and this may happen on the physical stage. As a result, nullable field becomes non-null. -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
