lgbo-ustc opened a new issue, #12174: URL: https://github.com/apache/gluten/issues/12174
### Backend CH (ClickHouse) ### Bug description For `Array(Nullable(Array(T)))`, the code scans all nested elements and returns `input_rows_count` default nullable rows as soon as it sees one null inner array. This makes unrelated rows null. Example: `[[[1], null], [[2]]]` should only make the first row null under Spark-style flatten semantics, but the current implementation returns both rows as null. ### Gluten version _No response_ ### Spark version None ### Spark configurations _No response_ ### System information _No response_ ### Relevant logs ```bash ``` -- 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]
