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

Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/10/08 20:25:00 UTC

[jira] [Created] (IMPALA-10228) Avoid or codegen std::map comparisons in partitioned top-n

Tim Armstrong created IMPALA-10228:
--------------------------------------

             Summary: Avoid or codegen std::map comparisons in partitioned top-n
                 Key: IMPALA-10228
                 URL: https://issues.apache.org/jira/browse/IMPALA-10228
             Project: IMPALA
          Issue Type: Sub-task
          Components: Backend
            Reporter: Tim Armstrong


The partitioned top-n implementation currently uses std::map to store the heaps. We can't inline the tuple comparator easily because of the indirections in the standard library code.



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

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscribe@impala.apache.org
For additional commands, e-mail: issues-all-help@impala.apache.org