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From "Thomas Nielsen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3349) Nested WHERE EXITS queries need improved testing
Date Thu, 24 Jan 2008 11:51:35 GMT
Nested WHERE EXITS queries need improved testing
------------------------------------------------

                 Key: DERBY-3349
                 URL: https://issues.apache.org/jira/browse/DERBY-3349
             Project: Derby
          Issue Type: Improvement
          Components: Test
            Reporter: Thomas Nielsen


DERBY-3301 reported an error in subquery flattening of nested WHERE EXISTS clauses, or WHERE
EXISTS subqueries. The query returned the wrong number of rows. 

There is currently some tests for WHERE EXISTS, but none for nested WHERE EXISTS clauses.
See DERBY-3301 for a full sql repro.

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