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

Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2017/10/20 20:57:00 UTC

[jira] [Created] (PHOENIX-4312) Choose between sort merge and hash join based on size of scanned data

James Taylor created PHOENIX-4312:
-------------------------------------

             Summary: Choose between sort merge and hash join based on size of scanned data
                 Key: PHOENIX-4312
                 URL: https://issues.apache.org/jira/browse/PHOENIX-4312
             Project: Phoenix
          Issue Type: Test
            Reporter: James Taylor


Using stats, we can determine how much data will be scanned. Though not perfect, this often is a pretty accurate picture of how many rows will be joined together. We should drive the determination of the join strategy based on cost.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)