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Posted to derby-dev@db.apache.org by de...@db.apache.org on 2004/10/01 20:43:32 UTC

[jira] Created: (DERBY-26) Dropping a nested trigger and rerunning the querry causes NullPointerException

Message:

  A new issue has been created in JIRA.

---------------------------------------------------------------------
View the issue:
  http://issues.apache.org/jira/browse/DERBY-26

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: DERBY-26
    Summary: Dropping a nested trigger and rerunning the querry causes NullPointerException
       Type: Bug

     Status: Unassigned
   Priority: Minor

    Project: Derby
 Components: 
             SQL
   Versions:
             10.0.2.0

   Assignee: 
   Reporter: Ramandeep Kaur

    Created: Fri, 1 Oct 2004 11:42 AM
    Updated: Fri, 1 Oct 2004 11:42 AM

Description:
Opening this bug on behalf of Satheesh Babdaram.

----------------------------------------------------------
Dropping a nested trigger and reruning the orignial query 
causes NullPointerException. Here is the test case, with 
pointers to incorrect behaviour:

ij> -- test the default (should be 16)
create table t1 (x int);
0 rows inserted/updated/deleted
ij> create table t2 (x int);
0 rows inserted/updated/deleted
ij> create table t3 (x int);
0 rows inserted/updated/deleted
ij> create table t4 (x int);
0 rows inserted/updated/deleted
ij> create table t5 (x int);
0 rows inserted/updated/deleted
ij> create table t6 (x int);
0 rows inserted/updated/deleted
ij> create table t7 (x int);
0 rows inserted/updated/deleted
ij> create table t8 (x int);
0 rows inserted/updated/deleted
ij> create table t9 (x int);
0 rows inserted/updated/deleted
ij> create table t10 (x int);
0 rows inserted/updated/deleted
ij> create table t11 (x int);
0 rows inserted/updated/deleted
ij> create table t12 (x int);
0 rows inserted/updated/deleted
ij> create table t13 (x int);
0 rows inserted/updated/deleted
ij> create table t14 (x int);
0 rows inserted/updated/deleted
ij> create table t15 (x int);
0 rows inserted/updated/deleted
ij> create table t16 (x int);
0 rows inserted/updated/deleted
ij> create table t17 (x int);
0 rows inserted/updated/deleted
ij> create trigger tr1 before insert on t1 for each row MODE 
DB2SQL insert into t2 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr2 before insert on t2 for each row MODE 
DB2SQL insert into t3 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr3 before insert on t3 for each row MODE 
DB2SQL insert into t4 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr4 before insert on t4 for each row MODE 
DB2SQL insert into t5 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr5 before insert on t5 for each row MODE 
DB2SQL insert into t6 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr6 before insert on t6 for each row MODE 
DB2SQL insert into t7 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr7 before insert on t7 for each row MODE 
DB2SQL insert into t8 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr8 before insert on t8 for each row MODE 
DB2SQL insert into t9 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr9 before insert on t9 for each row MODE 
DB2SQL insert into t10 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr10 before insert on t10 for each row MODE 
DB2SQL insert into t11 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr11 before insert on t11 for each row MODE 
DB2SQL insert into t12 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr12 before insert on t12 for each row MODE 
DB2SQL insert into t13 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr13 before insert on t13 for each row MODE 
DB2SQL insert into t14 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr14 before insert on t14 for each row MODE 
DB2SQL insert into t15 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr15 before insert on t15 for each row MODE 
DB2SQL insert into t16 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr16 before insert on t16 for each row MODE 
DB2SQL insert into t17 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr17 before insert on t17 for each row MODE 
DB2SQL values 1;
0 rows inserted/updated/deleted

*******Here we go
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t17 values 666'.

********prove it
ij>select * from t1;
X              

********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
make the insert pass, but it doesn't. Still raises MaximumRecursionException.

ij> drop trigger tr17;
0 rows inserted/updated/deleted

********The following will fail
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t2 values 666'. 
ij>select * from t1;
X              

*********-1 allows any ammount of recursion
ij>call org.apache.derby.iapi.db.PropertyInfo::setDatabaseProperty('16', '-1');
0 rows inserted/updated/deleted

*********INCORRECT AGAIN: Raising the Trigger Recursion Level and 
running the query fails with NullPointerException.
ij> insert into t1 values 1;
ERROR XJ001: Java exception: ': 
java.lang.NullPointerException'.

ij> select * from t1;
ERROR 40XT0: An internal error was identified by RawStore module.





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[jira] Updated: (DERBY-26) Dropping a nested trigger and rerunning the querry causes NullPointerException

Posted by de...@db.apache.org.
The following issue has been updated:

    Updater: Ramandeep Kaur (mailto:ramank@Yngvi.Org)
       Date: Mon, 4 Oct 2004 3:31 PM
    Changes:
             description changed from Opening this bug on behalf of Satheesh Babdaram.

----------------------------------------------------------
Dropping a nested trigger and reruning the orignial query 
causes NullPointerException. Here is the test case, with 
pointers to incorrect behaviour:

ij> -- test the default (should be 16)
create table t1 (x int);
0 rows inserted/updated/deleted
ij> create table t2 (x int);
0 rows inserted/updated/deleted
ij> create table t3 (x int);
0 rows inserted/updated/deleted
ij> create table t4 (x int);
0 rows inserted/updated/deleted
ij> create table t5 (x int);
0 rows inserted/updated/deleted
ij> create table t6 (x int);
0 rows inserted/updated/deleted
ij> create table t7 (x int);
0 rows inserted/updated/deleted
ij> create table t8 (x int);
0 rows inserted/updated/deleted
ij> create table t9 (x int);
0 rows inserted/updated/deleted
ij> create table t10 (x int);
0 rows inserted/updated/deleted
ij> create table t11 (x int);
0 rows inserted/updated/deleted
ij> create table t12 (x int);
0 rows inserted/updated/deleted
ij> create table t13 (x int);
0 rows inserted/updated/deleted
ij> create table t14 (x int);
0 rows inserted/updated/deleted
ij> create table t15 (x int);
0 rows inserted/updated/deleted
ij> create table t16 (x int);
0 rows inserted/updated/deleted
ij> create table t17 (x int);
0 rows inserted/updated/deleted
ij> create trigger tr1 before insert on t1 for each row MODE 
DB2SQL insert into t2 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr2 before insert on t2 for each row MODE 
DB2SQL insert into t3 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr3 before insert on t3 for each row MODE 
DB2SQL insert into t4 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr4 before insert on t4 for each row MODE 
DB2SQL insert into t5 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr5 before insert on t5 for each row MODE 
DB2SQL insert into t6 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr6 before insert on t6 for each row MODE 
DB2SQL insert into t7 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr7 before insert on t7 for each row MODE 
DB2SQL insert into t8 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr8 before insert on t8 for each row MODE 
DB2SQL insert into t9 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr9 before insert on t9 for each row MODE 
DB2SQL insert into t10 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr10 before insert on t10 for each row MODE 
DB2SQL insert into t11 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr11 before insert on t11 for each row MODE 
DB2SQL insert into t12 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr12 before insert on t12 for each row MODE 
DB2SQL insert into t13 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr13 before insert on t13 for each row MODE 
DB2SQL insert into t14 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr14 before insert on t14 for each row MODE 
DB2SQL insert into t15 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr15 before insert on t15 for each row MODE 
DB2SQL insert into t16 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr16 before insert on t16 for each row MODE 
DB2SQL insert into t17 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr17 before insert on t17 for each row MODE 
DB2SQL values 1;
0 rows inserted/updated/deleted

*******Here we go
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t17 values 666'.

********prove it
ij>select * from t1;
X              

********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
make the insert pass, but it doesn't. Still raises MaximumRecursionException.

ij> drop trigger tr17;
0 rows inserted/updated/deleted

********The following will fail
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t2 values 666'. 
ij>select * from t1;
X              

*********-1 allows any ammount of recursion
ij>call org.apache.derby.iapi.db.PropertyInfo::setDatabaseProperty('16', '-1');
0 rows inserted/updated/deleted

*********INCORRECT AGAIN: Raising the Trigger Recursion Level and 
running the query fails with NullPointerException.
ij> insert into t1 values 1;
ERROR XJ001: Java exception: ': 
java.lang.NullPointerException'.

ij> select * from t1;
ERROR 40XT0: An internal error was identified by RawStore module.


 to Opening this bug on behalf of Satheesh Babdaram.

----------------------------------------------------------
Dropping a nested trigger and reruning the orignial query 
causes NullPointerException. Here is the test case, with 
pointers to incorrect behaviour:

ij> -- test the default (should be 16)
create table t1 (x int);
0 rows inserted/updated/deleted
ij> create table t2 (x int);
0 rows inserted/updated/deleted
ij> create table t3 (x int);
0 rows inserted/updated/deleted
ij> create table t4 (x int);
0 rows inserted/updated/deleted
ij> create table t5 (x int);
0 rows inserted/updated/deleted
ij> create table t6 (x int);
0 rows inserted/updated/deleted
ij> create table t7 (x int);
0 rows inserted/updated/deleted
ij> create table t8 (x int);
0 rows inserted/updated/deleted
ij> create table t9 (x int);
0 rows inserted/updated/deleted
ij> create table t10 (x int);
0 rows inserted/updated/deleted
ij> create table t11 (x int);
0 rows inserted/updated/deleted
ij> create table t12 (x int);
0 rows inserted/updated/deleted
ij> create table t13 (x int);
0 rows inserted/updated/deleted
ij> create table t14 (x int);
0 rows inserted/updated/deleted
ij> create table t15 (x int);
0 rows inserted/updated/deleted
ij> create table t16 (x int);
0 rows inserted/updated/deleted
ij> create table t17 (x int);
0 rows inserted/updated/deleted
ij> create trigger tr1 before insert on t1 for each row MODE 
DB2SQL insert into t2 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr2 before insert on t2 for each row MODE 
DB2SQL insert into t3 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr3 before insert on t3 for each row MODE 
DB2SQL insert into t4 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr4 before insert on t4 for each row MODE 
DB2SQL insert into t5 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr5 before insert on t5 for each row MODE 
DB2SQL insert into t6 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr6 before insert on t6 for each row MODE 
DB2SQL insert into t7 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr7 before insert on t7 for each row MODE 
DB2SQL insert into t8 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr8 before insert on t8 for each row MODE 
DB2SQL insert into t9 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr9 before insert on t9 for each row MODE 
DB2SQL insert into t10 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr10 before insert on t10 for each row MODE 
DB2SQL insert into t11 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr11 before insert on t11 for each row MODE 
DB2SQL insert into t12 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr12 before insert on t12 for each row MODE 
DB2SQL insert into t13 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr13 before insert on t13 for each row MODE 
DB2SQL insert into t14 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr14 before insert on t14 for each row MODE 
DB2SQL insert into t15 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr15 before insert on t15 for each row MODE 
DB2SQL insert into t16 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr16 before insert on t16 for each row MODE 
DB2SQL insert into t17 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr17 before insert on t17 for each row MODE 
DB2SQL values 1;
0 rows inserted/updated/deleted

*******Here we go
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t17 values 666'.

********prove it
ij>select * from t1;
X              

********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
make the insert pass, but it doesn't. Still raises MaximumRecursionException.

ij> drop trigger tr17;
0 rows inserted/updated/deleted

********The following will fail
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t2 values 666'. 
ij>select * from t1;
X              



    ---------------------------------------------------------------------
For a full history of the issue, see:

  http://issues.apache.org/jira/browse/DERBY-26?page=history

---------------------------------------------------------------------
View the issue:
  http://issues.apache.org/jira/browse/DERBY-26

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: DERBY-26
    Summary: Dropping a nested trigger and rerunning the querry causes NullPointerException
       Type: Bug

     Status: Unassigned
   Priority: Minor

    Project: Derby
 Components: 
             SQL
   Versions:
             10.0.2.0

   Assignee: 
   Reporter: Ramandeep Kaur

    Created: Fri, 1 Oct 2004 11:42 AM
    Updated: Mon, 4 Oct 2004 3:31 PM

Description:
Opening this bug on behalf of Satheesh Babdaram.

----------------------------------------------------------
Dropping a nested trigger and reruning the orignial query 
causes NullPointerException. Here is the test case, with 
pointers to incorrect behaviour:

ij> -- test the default (should be 16)
create table t1 (x int);
0 rows inserted/updated/deleted
ij> create table t2 (x int);
0 rows inserted/updated/deleted
ij> create table t3 (x int);
0 rows inserted/updated/deleted
ij> create table t4 (x int);
0 rows inserted/updated/deleted
ij> create table t5 (x int);
0 rows inserted/updated/deleted
ij> create table t6 (x int);
0 rows inserted/updated/deleted
ij> create table t7 (x int);
0 rows inserted/updated/deleted
ij> create table t8 (x int);
0 rows inserted/updated/deleted
ij> create table t9 (x int);
0 rows inserted/updated/deleted
ij> create table t10 (x int);
0 rows inserted/updated/deleted
ij> create table t11 (x int);
0 rows inserted/updated/deleted
ij> create table t12 (x int);
0 rows inserted/updated/deleted
ij> create table t13 (x int);
0 rows inserted/updated/deleted
ij> create table t14 (x int);
0 rows inserted/updated/deleted
ij> create table t15 (x int);
0 rows inserted/updated/deleted
ij> create table t16 (x int);
0 rows inserted/updated/deleted
ij> create table t17 (x int);
0 rows inserted/updated/deleted
ij> create trigger tr1 before insert on t1 for each row MODE 
DB2SQL insert into t2 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr2 before insert on t2 for each row MODE 
DB2SQL insert into t3 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr3 before insert on t3 for each row MODE 
DB2SQL insert into t4 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr4 before insert on t4 for each row MODE 
DB2SQL insert into t5 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr5 before insert on t5 for each row MODE 
DB2SQL insert into t6 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr6 before insert on t6 for each row MODE 
DB2SQL insert into t7 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr7 before insert on t7 for each row MODE 
DB2SQL insert into t8 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr8 before insert on t8 for each row MODE 
DB2SQL insert into t9 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr9 before insert on t9 for each row MODE 
DB2SQL insert into t10 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr10 before insert on t10 for each row MODE 
DB2SQL insert into t11 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr11 before insert on t11 for each row MODE 
DB2SQL insert into t12 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr12 before insert on t12 for each row MODE 
DB2SQL insert into t13 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr13 before insert on t13 for each row MODE 
DB2SQL insert into t14 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr14 before insert on t14 for each row MODE 
DB2SQL insert into t15 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr15 before insert on t15 for each row MODE 
DB2SQL insert into t16 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr16 before insert on t16 for each row MODE 
DB2SQL insert into t17 values 666;
0 rows inserted/updated/deleted
ij> create trigger tr17 before insert on t17 for each row MODE 
DB2SQL values 1;
0 rows inserted/updated/deleted

*******Here we go
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t17 values 666'.

********prove it
ij>select * from t1;
X              

********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
make the insert pass, but it doesn't. Still raises MaximumRecursionException.

ij> drop trigger tr17;
0 rows inserted/updated/deleted

********The following will fail
ij> insert into t1 values 1;
ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
while processing statement: 'insert into t2 values 666'. 
ij>select * from t1;
X              





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[jira] Closed: (DERBY-26) Dropping a nested trigger and rerunning the querry causes NullPointerException

Posted by "Yip Ng (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-26?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yip Ng closed DERBY-26.
-----------------------

    Resolution: Duplicate

This is a duplicate to DERBY-2195.  The testcase in triggerRecursion.sql has been re-enabled.

> Dropping a nested trigger and rerunning the querry causes NullPointerException
> ------------------------------------------------------------------------------
>
>                 Key: DERBY-26
>                 URL: https://issues.apache.org/jira/browse/DERBY-26
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.0.2.0
>            Reporter: Ramandeep Kaur
>         Assigned To: Yip Ng
>            Priority: Minor
>
> Opening this bug on behalf of Satheesh Babdaram.
> ----------------------------------------------------------
> Dropping a nested trigger and reruning the orignial query 
> causes NullPointerException. Here is the test case, with 
> pointers to incorrect behaviour:
> ij> -- test the default (should be 16)
> create table t1 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t2 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t3 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t4 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t5 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t6 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t7 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t8 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t9 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t10 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t11 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t12 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t13 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t14 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t15 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t16 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t17 (x int);
> 0 rows inserted/updated/deleted
> ij> create trigger tr1 before insert on t1 for each row MODE 
> DB2SQL insert into t2 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr2 before insert on t2 for each row MODE 
> DB2SQL insert into t3 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr3 before insert on t3 for each row MODE 
> DB2SQL insert into t4 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr4 before insert on t4 for each row MODE 
> DB2SQL insert into t5 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr5 before insert on t5 for each row MODE 
> DB2SQL insert into t6 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr6 before insert on t6 for each row MODE 
> DB2SQL insert into t7 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr7 before insert on t7 for each row MODE 
> DB2SQL insert into t8 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr8 before insert on t8 for each row MODE 
> DB2SQL insert into t9 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr9 before insert on t9 for each row MODE 
> DB2SQL insert into t10 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr10 before insert on t10 for each row MODE 
> DB2SQL insert into t11 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr11 before insert on t11 for each row MODE 
> DB2SQL insert into t12 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr12 before insert on t12 for each row MODE 
> DB2SQL insert into t13 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr13 before insert on t13 for each row MODE 
> DB2SQL insert into t14 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr14 before insert on t14 for each row MODE 
> DB2SQL insert into t15 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr15 before insert on t15 for each row MODE 
> DB2SQL insert into t16 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr16 before insert on t16 for each row MODE 
> DB2SQL insert into t17 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr17 before insert on t17 for each row MODE 
> DB2SQL values 1;
> 0 rows inserted/updated/deleted
> *******Here we go
> ij> insert into t1 values 1;
> ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
> while processing statement: 'insert into t17 values 666'.
> ********prove it
> ij>select * from t1;
> X              
> ********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
> make the insert pass, but it doesn't. Still raises MaximumRecursionException.
> ij> drop trigger tr17;
> 0 rows inserted/updated/deleted
> ********The following will fail
> ij> insert into t1 values 1;
> ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
> while processing statement: 'insert into t2 values 666'. 
> ij>select * from t1;
> X              

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[jira] Assigned: (DERBY-26) Dropping a nested trigger and rerunning the querry causes NullPointerException

Posted by "Yip Ng (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-26?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yip Ng reassigned DERBY-26:
---------------------------

    Assignee: Yip Ng

> Dropping a nested trigger and rerunning the querry causes NullPointerException
> ------------------------------------------------------------------------------
>
>                 Key: DERBY-26
>                 URL: https://issues.apache.org/jira/browse/DERBY-26
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.0.2.0
>            Reporter: Ramandeep Kaur
>         Assigned To: Yip Ng
>            Priority: Minor
>
> Opening this bug on behalf of Satheesh Babdaram.
> ----------------------------------------------------------
> Dropping a nested trigger and reruning the orignial query 
> causes NullPointerException. Here is the test case, with 
> pointers to incorrect behaviour:
> ij> -- test the default (should be 16)
> create table t1 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t2 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t3 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t4 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t5 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t6 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t7 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t8 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t9 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t10 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t11 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t12 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t13 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t14 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t15 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t16 (x int);
> 0 rows inserted/updated/deleted
> ij> create table t17 (x int);
> 0 rows inserted/updated/deleted
> ij> create trigger tr1 before insert on t1 for each row MODE 
> DB2SQL insert into t2 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr2 before insert on t2 for each row MODE 
> DB2SQL insert into t3 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr3 before insert on t3 for each row MODE 
> DB2SQL insert into t4 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr4 before insert on t4 for each row MODE 
> DB2SQL insert into t5 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr5 before insert on t5 for each row MODE 
> DB2SQL insert into t6 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr6 before insert on t6 for each row MODE 
> DB2SQL insert into t7 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr7 before insert on t7 for each row MODE 
> DB2SQL insert into t8 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr8 before insert on t8 for each row MODE 
> DB2SQL insert into t9 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr9 before insert on t9 for each row MODE 
> DB2SQL insert into t10 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr10 before insert on t10 for each row MODE 
> DB2SQL insert into t11 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr11 before insert on t11 for each row MODE 
> DB2SQL insert into t12 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr12 before insert on t12 for each row MODE 
> DB2SQL insert into t13 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr13 before insert on t13 for each row MODE 
> DB2SQL insert into t14 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr14 before insert on t14 for each row MODE 
> DB2SQL insert into t15 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr15 before insert on t15 for each row MODE 
> DB2SQL insert into t16 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr16 before insert on t16 for each row MODE 
> DB2SQL insert into t17 values 666;
> 0 rows inserted/updated/deleted
> ij> create trigger tr17 before insert on t17 for each row MODE 
> DB2SQL values 1;
> 0 rows inserted/updated/deleted
> *******Here we go
> ij> insert into t1 values 1;
> ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
> while processing statement: 'insert into t17 values 666'.
> ********prove it
> ij>select * from t1;
> X              
> ********INCORRECT BEHAVIOUR STARTS FROM HERE. Droping tr17 should 
> make the insert pass, but it doesn't. Still raises MaximumRecursionException.
> ij> drop trigger tr17;
> 0 rows inserted/updated/deleted
> ********The following will fail
> ij> insert into t1 values 1;
> ERROR X0Y73: The maximum trigger recursion level of 16 was exceeded 
> while processing statement: 'insert into t2 values 666'. 
> ij>select * from t1;
> X              

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