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From "Siddharth Srivastava (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4779) NPE while inserting into a table which has a generated column and an insert trigger
Date Sun, 27 Mar 2011 21:46:05 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011853#comment-13011853
] 

Siddharth Srivastava commented on DERBY-4779:
---------------------------------------------

Updating the error log to include the line numbers where the error occurs (previous log consisted
of UNKNOWN SOURCE in place of linu numbers)

java.lang.NullPointerException
	at org.apache.derby.impl.sql.execute.DMLWriteResultSet.objectifyStreams(DMLWriteResultSet.java:155)
	at org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(DMLWriteResultSet.java:135)
	at org.apache.derby.impl.sql.execute.InsertResultSet.open(InsertResultSet.java:504)
	at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:436)
	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:317)
	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1242)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:630)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:559)
	at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:367)
	at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:521)
	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:363)
	at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:261)
	at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
	at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
	at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
	at org.apache.derby.tools.ij.main(ij.java:59)
	at org.apache.derby.iapi.tools.run.main(run.java:53)

> NPE while inserting into a table which has a generated column and an insert trigger
> -----------------------------------------------------------------------------------
>
>                 Key: DERBY-4779
>                 URL: https://issues.apache.org/jira/browse/DERBY-4779
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.3.0, 10.6.1.0, 10.7.1.1
>            Reporter: Rick Hillegas
>              Labels: derby_triage10_8
>
> The following script generates an NPE on the concluding insert:
> connect 'jdbc:derby:memory:dummy;create=true';
> create function getRegion( v int )
> returns varchar( 20 )
> language java parameter style java deterministic no sql
> external name 'java.lang.Integer.toString'
> ;
> create table orders
> (
>     orderID bigint primary key,
>     salesPrice int not null,
>     region generated always as ( getRegion( salesPrice ) )
> )
> ;
> create table dummy( a int );
> create trigger newOrderTrigger
> after insert on orders
> for each row
> insert into dummy( a ) values ( 1 )
> ;
> insert into orders( orderID, salesPrice ) values ( 1, 2 )
> ;
> ------------------------
> Here is the NPE:
> java.lang.NullPointerException
> 	at org.apache.derby.impl.sql.execute.DMLWriteResultSet.objectifyStreams(Unknown Source)
> 	at org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(Unknown Source)
> 	at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown Source)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.ij.executeImmediate(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.doCatch(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
> 	at org.apache.derby.tools.ij.main(Unknown Source)

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