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

Posted to issues@trafodion.apache.org by "Alice Chen (JIRA)" <ji...@apache.org> on 2015/07/22 20:15:55 UTC

[jira] [Created] (TRAFODION-402) LP Bug: 1336450 - Salted HBase table should be hash2 partitioned to facilitate co-partitioned joins

Alice Chen created TRAFODION-402:
------------------------------------

             Summary: LP Bug: 1336450 - Salted HBase table should be hash2 partitioned to facilitate co-partitioned joins
                 Key: TRAFODION-402
                 URL: https://issues.apache.org/jira/browse/TRAFODION-402
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Qifan Chen
            Assignee: Qifan Chen
            Priority: Critical
             Fix For: 0.8 (pre-incubation)


Currently salted HBase tables are range partitioned, which requires extra exchange nodes directly above the Hbase scans to randomly re-partition the data, and disables co-partitioned hash joins. 

If such tables can bedescribed by HASH2 partitioning function, the above two disadvantages will be removed.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)