alamb commented on issue #20135: URL: https://github.com/apache/datafusion/issues/20135#issuecomment-3841042606
I think the first key decision is how to model this method / what is the API I think @ethan-tyler / @adriangb were leaning towards some built in functions like ```rust select filename() from my_table ``` And then rewriting the function reference in the datasource One potential downside of doing it this way is that it is not clear how it would work for a multi-table query -- for example ```sql SELECT ..., filename() -- <---- Which relation does `filename()` get attached to? FROM a JOIN b USING (id) ``` -- 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]
