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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-4387) Infinite loop in PredicateList.joinClauseTransitiveClosure()
Date Fri, 04 Dec 2009 16:12:20 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dag H. Wanvik resolved DERBY-4387.
----------------------------------

    Resolution: Fixed

Committed patch as svn 887246, resolving.

> Infinite loop in PredicateList.joinClauseTransitiveClosure()
> ------------------------------------------------------------
>
>                 Key: DERBY-4387
>                 URL: https://issues.apache.org/jira/browse/DERBY-4387
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.0.2.1, 10.1.3.1, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.3.0, 10.6.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Dag H. Wanvik
>         Attachments: derby-4387.diff, derby-4387.stat
>
>
> This sequence of statements triggers an infinite loop in PredicateList.joinClauseTransitiveClosure()
and never completes:
> create table c (a int, b int, c int);
> create table cc (aa int);
> select * from cc t1, c t2, cc t3 where t3.aa = t2.a and t3.aa = t2.b and t3.aa = t2.c;

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