tustvold commented on issue #2581: URL: https://github.com/apache/datafusion/issues/2581#issuecomment-2568129442
I think that would be conflating two separate ideas, which I think would get confusing very quickly. Projection is a way to quickly and efficiently discard columns, expression evaluation is a way to then process what remains. Or to phrase it differently, the projection mask would be computed based on the expression(s) in the query, and the projection mask is then pushed down further, with these components able to just focus on what the expression wants not why it wants it. -- 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
