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 "Csaba Ringhofer (Jira)" <ji...@apache.org> on 2021/10/11 09:34:00 UTC
[jira] [Created] (IMPALA-10961) Implement 3-way quicksort in sorter
Csaba Ringhofer created IMPALA-10961:
----------------------------------------
Summary: Implement 3-way quicksort in sorter
Key: IMPALA-10961
URL: https://issues.apache.org/jira/browse/IMPALA-10961
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Csaba Ringhofer
Using 3-way partitioning in quicksort could massively speed up sorting if there is a large number of duplicate elements. This is very common in sorts before partitioned inserts.
--
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