[jira] [Created] (DERBY-6348) NPE or assert failure in recursive trigger

["Knut Anders Hatlen (JIRA)" <ji...@apache.org>]

Knut Anders Hatlen created DERBY-6348:
-----------------------------------------

             Summary: NPE or assert failure in recursive trigger
                 Key: DERBY-6348
                 URL: https://issues.apache.org/jira/browse/DERBY-6348
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.10.1.1, 10.9.1.0, 10.8.1.2, 10.7.1.1, 10.6.1.0, 10.5.1.1
            Reporter: Knut Anders Hatlen


With 10.5.1.1 and newer, the following ij session fails with a NullPointerException (production jars) or an assert failure (debug jars):

ij version 10.10
ij> connect 'jdbc:derby:db;create=true';
ij> create table t(x int);
0 rows inserted/updated/deleted
ij> insert into t values 0;
1 row inserted/updated/deleted
ij> create trigger tr1 after update on t values 1;
0 rows inserted/updated/deleted
ij> create trigger tr2 after update on t for each row update t set x = x + 1 where x < 3;
0 rows inserted/updated/deleted
ij> update t set x = x + 1;
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.

It does not fail on 10.4.2.0:

ij version 10.4
ij> connect 'jdbc:derby:db;create=true';
ij> create table t(x int);
0 rows inserted/updated/deleted
ij> insert into t values 0;
1 row inserted/updated/deleted
ij> create trigger tr1 after update on t values 1;
0 rows inserted/updated/deleted
ij> create trigger tr2 after update on t for each row update t set x = x + 1 where x < 3;
0 rows inserted/updated/deleted
ij> update t set x = x + 1;
1 row inserted/updated/deleted
ij> select * from t;
X          
-----------
3          

1 row selected

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