mingmwang commented on PR #3912: URL: https://github.com/apache/arrow-datafusion/pull/3912#issuecomment-1306746408
Based my understanding, I think the selectivity and row count estimation is more important, the column boundaries estimation and derivation is error prone, especially after couple of complex expressions, or some advanced SQL operators, we might have to give up the column boundaries and just propagate the estimation of the row counts. ```` SELECT * FROM LINEITEM WHERE L_EXTENDEDPRICE*(1-L DISCOUNT) > 90000 ```` -- 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]
