[teiid-issues] [JBoss JIRA] (TEIID-1990) UNION pushdown
[
https://issues.jboss.org/browse/TEIID-1990?page=com.atlassian.jira.plugin...
]
Steven Hawkins resolved TEIID-1990.
-----------------------------------
Fix Version/s: 7.7.1
8.0
Resolution: Done
I left off the backport of the implicit change since it alters quite a few test cases.
But there was a bug with the debug log info which has been corrected and expanded. I also
added a specific log for the limit case from the forum topic -
https://community.jboss.org/thread/197974?tstart=0
UNION pushdown
--------------
Key: TEIID-1990
URL: https://issues.jboss.org/browse/TEIID-1990
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 7.7
Reporter: Mark Addleman
Assignee: Steven Hawkins
Fix For: 7.7.1, 8.0
Attachments: plan.txt, plan.txt
I have SQL of the form
SELECT a FROM (
SELECT a FROM ds.t1 UNION
SELECT a FROM ds.t2
) t
The execution factory extends JDBCExecutionFactory and supports everything except row
offset. It appears that the two unioned SELECTs are being executed as separate statements
rather than the entire unioned set being pushed down to the datasource.
Attached is plan
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.jboss.org/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira