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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4793) Assert failure when concatenating strings with total size greater than 32K
Date Mon, 06 Sep 2010 15:30:32 GMT
Assert failure when concatenating strings with total size greater than 32K
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                 Key: DERBY-4793
                 URL: https://issues.apache.org/jira/browse/DERBY-4793
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.6.1.0
            Reporter: Knut Anders Hatlen
         Attachments: concat.sql

When concatenating two strings whose total length exceeds the maximum length for a VARCHAR,
an assert is triggered in the debug jars:

ij> values length('0123456789.....' || '0123456789.....');
ERROR XJ001: Java exception: 'ASSERT FAILED The maximum length 35000 for the result type VARCHAR
can't be greater than it's maximum width of result's typeid32672: org.apache.derby.shared.common.sanity.AssertFailure'.

With non-debug jars, the same query completes successfully:

ij> values length('0123456789.....' || '0123456789.....');
1          
-----------
35000      

1 row selected

I think this query is supposed to fail, also with non-debug jars, but in any even it shouldn't
be raising assert failures.

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