[teiid-issues] [JBoss JIRA] (TEIID-1958) Assertion failed in SortUtility

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-1958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672908#comment-12672908 ] 

Steven Hawkins commented on TEIID-1958:
---------------------------------------

Just to confirm, is this on 7.7 or 7.6.  This looks similar to TEIID-1949

The log shows the initial query, but that is not the final plan form as it shows just a single pushdown.

You're workaround sounds good.  We would combine the distinct and the order by operation in this example, but understanding that the group by could be dropped we would only do currently if the grouping columns were unique.
                
> Assertion failed in SortUtility
> -------------------------------
>
>                 Key: TEIID-1958
>                 URL: https://issues.jboss.org/browse/TEIID-1958
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>    Affects Versions: 7.7
>            Reporter: Mark Addleman
>            Assignee: Steven Hawkins
>         Attachments: teiid.log
>
>
> Getting an assert failure in SortUtility.  Plan is attached.  Stack trace below:
> Caused by: java.lang.AssertionError: Assertion failed.
> at org.teiid.core.util.Assertion.failed(Assertion.java:73)
> at org.teiid.core.util.Assertion.assertTrue(Assertion.java:68)
> at org.teiid.core.util.Assertion.assertTrue(Assertion.java:60)
> at org.teiid.query.processor.relational.SortUtility.<init>(SortUtility.java:145)
> at org.teiid.query.processor.relational.SortNode.sortPhase(SortNode.java:96)
> at org.teiid.query.processor.relational.SortNode.getFinalBuffer(SortNode.java:180)
> at org.teiid.query.processor.relational.RelationalPlan.getFinalBuffer(RelationalPlan.java:307)
> at org.teiid.query.processor.QueryProcessor.getFinalBuffer(QueryProcessor.java:239)
> at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:137)
> at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:374)
> at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:287)
> ... 37 more

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