jacktengg opened a new pull request, #28991: URL: https://github.com/apache/doris/pull/28991
## Proposed changes Introduced by #28851, after evaluating build side expr, some columns in resulting block may be referenced more than once in the same block. e.g. `coalesce(col_a, 'string')` if `col_a` is nullable but actually contains no null values, in this case funcition `coalesce` will insert a new nullable column which references the original `col_a`. <!--Describe your changes.--> ## Further comments If this is a relatively large or complex change, kick off the discussion at [[email protected]](mailto:[email protected]) by explaining why you chose the solution you did and what alternatives you considered, etc... -- 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]
