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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3718) NPE when firing a trigger
Date Mon, 23 Jun 2008 21:45:45 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mamta A. Satoor updated DERBY-3718:
-----------------------------------

    Derby Info: [Regression]  (was: [Regression, Patch Available])

> NPE when firing a trigger
> -------------------------
>
>                 Key: DERBY-3718
>                 URL: https://issues.apache.org/jira/browse/DERBY-3718
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.1.3, 10.5.0.0
>            Reporter: Rick Hillegas
>            Assignee: Mamta A. Satoor
>         Attachments: DERBY3718_npe_in_trigger_fire_patch1_diff.txt
>
>
> NullPointerException raised when firing a trigger. Originally reported by Thiyagu P on
the Derby user list: http://www.nabble.com/Trigger-function-broken-in-10.4.1.3--td17760208.html#a17760208
Thiyagu reports that the same script works fine in 10.3.3.0. Here's the script:
> CREATE TABLE TRADE(
>       ID INT PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY (START WITH 1000),
>       BUYID INT NOT NULL,
>       QTY FLOAT(2) NOT NULL
>    );
>   
>    CREATE TABLE TOTAL(BUYID INT NOT NULL, TOTALQTY FLOAT(2) NOT NULL);
>    CREATE TRIGGER TRADE_INSERT
>      AFTER INSERT ON TRADE
>      REFERENCING NEW AS NEWROW
>      FOR EACH ROW MODE DB2SQL
>      UPDATE TOTAL SET TOTALQTY = NEWROW.QTY WHERE BUYID = NEWROW.BUYID;
>    INSERT INTO TOTAL VALUES (1, 0);
>    INSERT INTO TRADE VALUES(1, 1, 10);
> Here's the stack trace:
> java.lang.NullPointerException
> 	at org.apache.derby.iapi.types.DataTypeDescriptor.getNull(DataTypeDescriptor.java:1008)
> 	at org.apache.derby.iapi.types.DataTypeDescriptor.normalize(DataTypeDescriptor.java:645)
> 	at org.apache.derby.impl.sql.execute.NormalizeResultSet.normalizeRow(NormalizeResultSet.java:329)
> 	at org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(NormalizeResultSet.java:189)
> 	at org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(DMLWriteResultSet.java:127)
> 	at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(UpdateResultSet.java:424)
> 	at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSet.java:246)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:384)
> 	at org.apache.derby.impl.sql.execute.GenericTriggerExecutor.executeSPS(GenericTriggerExecutor.java:159)
> 	at org.apache.derby.impl.sql.execute.RowTriggerExecutor.fireTrigger(RowTriggerExecutor.java:111)
> 	at org.apache.derby.impl.sql.execute.TriggerEventActivator.notifyEvent(TriggerEventActivator.java:269)
> 	at org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(InsertResultSet.java:1150)
> 	at org.apache.derby.impl.sql.execute.InsertResultSet.open(InsertResultSet.java:487)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:384)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1235)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:625)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:555)
> 	at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:329)
> 	at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:508)
> 	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:350)
> 	at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:248)
> 	at org.apache.derby.impl.tools.ij.Main.go(Main.java:215)
> 	at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:181)
> 	at org.apache.derby.impl.tools.ij.Main.main(Main.java:73)
> 	at org.apache.derby.tools.ij.main(ij.java:59)

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