[ http://issues.apache.org/jira/browse/DERBY-1574?page=all ]
Knut Anders Hatlen resolved DERBY-1574.
---------------------------------------
Resolution: Fixed
Derby Info: (was: [Patch Available])
Thanks Dag for fixing the bug, and Yip for reviewing the patch. Committed revision 431593.
> 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: 10.0.2.0, 10.0.2.1, 10.0.2.2, 10.1.1.0, 10.2.0.0, 10.1.2.1, 10.1.3.0,
10.1.4.0, 10.1.3.1, 10.1.3.2
> Environment: Java 1.5.0_06
> Reporter: Christian d'Heureuse
> Assigned To: Dag H. Wanvik
> Priority: Minor
> Fix For: 10.2.0.0
>
> Attachments: derby1574-2.diff, derby1574-2.stat, derby1574.diff, predicatePushdown.diff
>
>
> 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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