You are viewing a plain text version of this content. The canonical link for it is here.

Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/09 05:13:23 UTC

[GitHub] [arrow-datafusion] xudong963 commented on issue #2181: [Discuss] Add struct `Query` for datafusion

xudong963 commented on issue #2181:
URL: https://github.com/apache/arrow-datafusion/issues/2181#issuecomment-1093699398

   Here is a framework https://github.com/apache/arrow-datafusion/pull/1649 for implementing subqueries that I wrote some time ago. After this framework is completed, I believe that many kinds of subqueries can be easily added, such as `in`, `scalar subquery`, and this framework takes decorrelated into account at the beginning.
   
   Currently this ticket encounters some problems because datafusion currently records columns by name, not by index.
   
   Since I've been busy with changing jobs and adjusting to a new life, I haven't had much time to move forward with this ticket, so it's a bit delayed :(


-- 
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-unsubscribe@arrow.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org