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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4389) ArrayIndexOutOfBoundsException in RIGHT JOIN with COALESCE
Date Fri, 25 Sep 2009 21:15:16 GMT
ArrayIndexOutOfBoundsException in RIGHT JOIN with COALESCE
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                 Key: DERBY-4389
                 URL: https://issues.apache.org/jira/browse/DERBY-4389
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.5.3.0, 10.4.2.0, 10.3.3.0, 10.2.2.0, 10.1.3.1, 10.0.2.1, 10.6.0.0
            Reporter: Knut Anders Hatlen


Dag H. Wanvik identified this problematic query in DERBY-4342:

ij> create table t(x int, y int);
0 rows inserted/updated/deleted
ij> insert into t values (1,2);
1 row inserted/updated/deleted
ij> select * from t t1 right join t t2 on t1.x=t2.x where coalesce(t1.x,t1.y) = 1;
ERROR 38000: The exception 'java.lang.ArrayIndexOutOfBoundsException: -1' was thrown while
evaluating an expression.
ERROR XJ001: Java exception: '-1: java.lang.ArrayIndexOutOfBoundsException'.

With a debug build, an assert failure is raised instead:

ij> select * from t t1 right join t t2 on t1.x=t2.x where coalesce(t1.x,t1.y) = 1;
ERROR XJ001: Java exception: 'ASSERT FAILED sourceResultSetNumber expected to be >= 0 for
T1.X: org.apache.derby.shared.common.sanity.AssertFailure'.

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