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

Posted to dev@hive.apache.org by "Steve Carlin (Jira)" <ji...@apache.org> on 2021/09/15 19:31:00 UTC

[jira] [Created] (HIVE-25528) Avoid recalculating types after CBO on second AST pass

Steve Carlin created HIVE-25528:
-----------------------------------

             Summary: Avoid recalculating types after CBO on second AST pass
                 Key: HIVE-25528
                 URL: https://issues.apache.org/jira/browse/HIVE-25528
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2
            Reporter: Steve Carlin


It should be possible to avoid recalculating and reevaluating types on the second pass after going through CBO.  CBO is making the effort to change the types so to reassess them is a waste of time.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)