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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4420) NullPointerException with INSERT INTO ... from EXCEPT/INTERSECT and generated columns
Date Fri, 23 Oct 2009 06:57:59 GMT
NullPointerException with INSERT INTO ... from EXCEPT/INTERSECT and generated columns
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                 Key: DERBY-4420
                 URL: https://issues.apache.org/jira/browse/DERBY-4420
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.5.3.0, 10.5.1.1, 10.4.1.3, 10.3.1.4, 10.2.1.6, 10.1.1.0, 10.6.0.0
            Reporter: Knut Anders Hatlen


The sequence of statements below give a NullPointerException. The statements are very similar
to the ones in DERBY-4419, but this is a separate bug since the stack traces are different,
and this bug can be seen all the way back to 10.1.1.0, whereas DERBY-4419 was a regression
in 10.3. (On 10.0.2.1, a syntax error is raised instead of the NPE.)

ij> create table t1(x int);
0 rows inserted/updated/deleted
ij> insert into t1 values 1,2;
2 rows inserted/updated/deleted
ij> create table t2(x int);
0 rows inserted/updated/deleted
ij> insert into t2 values 2,3;
2 rows inserted/updated/deleted
ij> create table t3(x int, y int generated always as identity);
0 rows inserted/updated/deleted
ij> insert into t3(x) select * from t1 except select * from t2;
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.

Same error if INTERSECT is used instead of EXCEPT.

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