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https://issues.jboss.org/browse/TEIID-2747?page=com.atlassian.jira.plugin...
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RH Bugzilla Integration commented on TEIID-2747:
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Van Halbert <vhalbert(a)redhat.com> changed the Status of [bug
1033056|https://bugzilla.redhat.com/show_bug.cgi?id=1033056] from VERIFIED to CLOSED
Wrong results with merge join SORT_DISTINCT with a full sort that is
distinct beyond the join columns
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Key: TEIID-2747
URL:
https://issues.jboss.org/browse/TEIID-2747
Project: Teiid
Issue Type: Bug
Components: Query Engine
Affects Versions: 7.4
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Priority: Blocker
Fix For: 8.4.1, 8.6
To speed up processing of a sort merge join we attempt to eliminate extra comparisons by
detecting if the equi-join column values are distinct. In plans where the sorted values
are distinct beyond the equi-join values such that the equi-join column values are
non-distinct, then incorrect results can be returned.
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