JasonLi-cn opened a new pull request, #11469: URL: https://github.com/apache/datafusion/pull/11469
## Which issue does this PR close? <!-- We generally require a GitHub issue to be filed for all bug fixes and enhancements and this helps us generate change logs for our releases. You can link an issue to this PR using the GitHub syntax. For example `Closes #123` indicates that this PR will close issue #123. --> Closes #. ## Rationale for this change support SQLs like: ``` SELECT unnest(list_type_col) c0, count(1) FROM tab GROUP BY c0; SELECT unnest(unnest(recursive_list_type_col)) c0, count(1) FROM tab GROUP BY c0; ``` ## What changes are included in this PR? <!-- There is no need to duplicate the description in the issue here but it is sometimes worth providing a summary of the individual changes in this PR. --> ## Are these changes tested? Yes. Has added some test cases into `unnest.slt`. ## Are there any user-facing changes? Simplified SQL syntax, eg: ``` SELECT t0.c0, count(1) FROM (SELECT unnest(list_col) c0 FROM tal) t0 GROUP BY t0.c0; ``` can replace by ``` SELECT unnest(list_col) c0, count(1) FROM tal GROUP BY c0; ``` -- 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: github-unsubscr...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
