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From "Christian d'Heureuse (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1574) NullPointerException in UPDATE with COALESCE and subquery
Date Sun, 23 Jul 2006 01:01:13 GMT
NullPointerException in UPDATE with COALESCE and subquery
---------------------------------------------------------

                 Key: DERBY-1574
                 URL: http://issues.apache.org/jira/browse/DERBY-1574
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.1.3.1
         Environment: Java 1.5.0_06
            Reporter: Christian d'Heureuse
            Priority: Minor


The following statements generate a NullPointerException:

CREATE TABLE t1 (i INTEGER);
CREATE TABLE t2 (i INTEGER);

UPDATE t1
   SET i = COALESCE(
      (SELECT i FROM t2 WHERE t2.i=t1.i),
      0);

Any further SQL statements generate an internal error in RawStore, e.g.:
SELECT * FROM t1;

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