adriangb commented on issue #15780: URL: https://github.com/apache/datafusion/issues/15780#issuecomment-2978786991
Thinking out loud about some of the tricky bits: there's going to be cases where we necessarily need to convert to the table schema's data type, e.g. `opaque_udf(col)`: we can't possibly know what `opaque_udf` accepts or not, the only reasonable thing to do is preserve the current behavior and cast `col` to the data type of `col` in the table schema. So as we design something I think it's probably best to make it default to the current behavior / cast everything to the table schema and optimize specific patterns that we know are safe (e.g. binary expressions). -- 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
