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

Posted to jira@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2022/06/06 20:18:00 UTC

[jira] [Created] (ARROW-16758) [C++] Rewrite ExecuteScalarExpression to not use ScalarExecutor

Wes McKinney created ARROW-16758:
------------------------------------

             Summary: [C++] Rewrite ExecuteScalarExpression to not use ScalarExecutor
                 Key: ARROW-16758
                 URL: https://issues.apache.org/jira/browse/ARROW-16758
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Wes McKinney


{{ExecuteScalarExpression}} sets up and tears down {{ScalarExecutor}} from exec.cc for each node in the expression tree. This adds a ton of overhead from moving around non-trivial objects. After ARROW-16756, we should write a new ScalarExpressionExecutor which is careful to construct ArraySpans and execute the expression tree in a much more lightweight / less bloated fashion. 

Follow on work in a subsequent Jira will add a pool/stack of allocated temporary buffers to reuse during execution 



--
This message was sent by Atlassian Jira
(v8.20.7#820007)