cloud-fan commented on PR #43623: URL: https://github.com/apache/spark/pull/43623#issuecomment-1790371025
> Why not add an optimizer rule to find the common expressions and insert a Project to pre-evaluate? We need this `With` expression anyway to support the WITH syntax in google bigquery, and it's safer to use it incrementally to avoid expression duplication. It's also easier to build it incrementally as the agg/window function support can be added later. -- 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]
