starocean999 opened a new pull request, #41576: URL: https://github.com/apache/doris/pull/41576
## Proposed changes `select sum(distinct c1) from t;` assume c1 is not null, because there is no group by, sum(distinct c1)'s nullable is alwasNullable in rewritten phase. But in implementation phase, we may create 3 phase agg with group by key c1. And the sum(distinct c1)'s nullability should be changed depending on if there is any group by expressions. This pr update the agg function's nullability accordingly <!--Describe your changes.--> -- 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: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
