[teiid-issues] [JBoss JIRA] (TEIID-5109) Set operations and parenthesis
Van Halbert (JIRA)
issues at jboss.org
Mon Oct 23 10:35:01 EDT 2017
[ https://issues.jboss.org/browse/TEIID-5109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Van Halbert updated TEIID-5109:
-------------------------------
Fix Version/s: 8.12.x-6.4
> Set operations and parenthesis
> ------------------------------
>
> Key: TEIID-5109
> URL: https://issues.jboss.org/browse/TEIID-5109
> Project: Teiid
> Issue Type: Bug
> Components: Connector API, Query Engine
> Reporter: Mike Higgins
> Assignee: Steven Hawkins
> Priority: Blocker
> Fix For: 10.0, 8.12.x-6.4, 9.3.4, 9.2.7
>
>
> Using Teiid 9.2.2 with postgresql, I issue a query structured like this:
>
> (a
> UNION ALL
> b
> UNION ALL
> c)
> INTERSECT
> d
>
> All queries are from a single database.
> This query does not give back the expected result.
> In the plan, I see the query printed with no parenthesis around the unions:
> a UNION ALL b UNION ALL c INTERSECT d
> This gives the same result as the query submitted with no parens in it (the intersect of c and d is unioned with a union b.
> The expepeted result is to preserve the paren so that the intersect is performed against the union of all three tables.
> As a note, using UNION instead of UNION ALL did not preserve the parens, either.
>
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