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From "Manish Khettry" <manish.khet...@gmail.com>
Subject Re: [jira] Updated: (DERBY-578) Grouped select from temporary table raises null pointer exception in byte code generator
Date Wed, 07 Jun 2006 01:22:10 GMT
Just wondering if any of the commiters had seen this and were planning to
commit this patch?

Thanks,
Manish

On 4/28/06, Manish Khettry (JIRA) <derby-dev@db.apache.org> wrote:
>
>      [ http://issues.apache.org/jira/browse/DERBY-578?page=all ]
>
> Manish Khettry updated DERBY-578:
> ---------------------------------
>
>     Attachment: 578.diff.txt
>
> The problem is simple enough-- we didn't have a conglomerate name for
> temporary tables. I fixed the code to behave more like what fillInScanArgs
> does. Several master files had to be changed and I think I got to all of
> them. If there is a wiki entry on how to convert existing tests to JUnit or
> if there is some work underway, let me know!
>
>
>
>
>
> > Grouped select from temporary table raises null pointer exception in
> byte code generator
> >
> ----------------------------------------------------------------------------------------
> >
> >          Key: DERBY-578
> >          URL: http://issues.apache.org/jira/browse/DERBY-578
> >      Project: Derby
> >         Type: Bug
>
> >   Components: Services, SQL
> >     Reporter: Rick Hillegas
> >     Assignee: Manish Khettry
> >  Attachments: 578.diff.txt
> >
> > The last statement in the following script:
> > autocommit off;
> > declare global temporary table session.ztemp
> > ( orderID varchar( 50 ) )
> > not logged;
> > select orderID from session.ztemp group by orderID;
> > raises the following stack trace in the trunk:
> > java.lang.NullPointerException
> >       at java.util.Hashtable.get(Hashtable.java:333)
> >       at
> org.apache.derby.iapi.services.classfile.ClassHolder.findMatchingEntry(
> ClassHolder.java:656)
> >       at
> org.apache.derby.iapi.services.classfile.ClassHolder.addUtf8Entry(
> ClassHolder.java:482)
> >       at org.apache.derby.iapi.services.classfile.ClassHolder.addString(
> ClassHolder.java:506)
> >       at
> org.apache.derby.iapi.services.classfile.ClassHolder.addConstant(
> ClassHolder.java:302)
> >       at org.apache.derby.impl.services.bytecode.BCMethod.push(
> BCMethod.java:452)
> >       at
> org.apache.derby.impl.sql.compile.FromBaseTable.generateDistinctScan(
> FromBaseTable.java:3216)
> >       at
> org.apache.derby.impl.sql.compile.FromBaseTable.generateResultSet(
> FromBaseTable.java:3032)
> >       at org.apache.derby.impl.sql.compile.FromBaseTable.generate(
> FromBaseTable.java:2978)
> >       at
> org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(
> ProjectRestrictNode.java:1196)
> >       at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(
> ProjectRestrictNode.java:1145)
> >       at
> org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(
> ProjectRestrictNode.java:1196)
> >       at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(
> ProjectRestrictNode.java:1145)
> >       at
> org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(
> ProjectRestrictNode.java:1196)
> >       at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(
> ProjectRestrictNode.java:1145)
> >       at
> org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(
> ProjectRestrictNode.java:1196)
> >       at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(
> ProjectRestrictNode.java:1145)
> >       at
> org.apache.derby.impl.sql.compile.ScrollInsensitiveResultSetNode.generate(
> ScrollInsensitiveResultSetNode.java:109)
> >       at org.apache.derby.impl.sql.compile.ReadCursorNode.generate(
> ReadCursorNode.java:118)
> >       at org.apache.derby.impl.sql.compile.CursorNode.generate(
> CursorNode.java:546)
> >       at org.apache.derby.impl.sql.compile.StatementNode.generate(
> StatementNode.java:232)
> >       at org.apache.derby.impl.sql.GenericStatement.prepMinion(
> GenericStatement.java:433)
> >       at org.apache.derby.impl.sql.GenericStatement.prepare(
> GenericStatement.java:107)
> >       at
> org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement
> (GenericLanguageConnectionContext.java:704)
> >       at org.apache.derby.impl.jdbc.EmbedStatement.execute(
> EmbedStatement.java:533)
> >       at org.apache.derby.impl.jdbc.EmbedStatement.execute(
> EmbedStatement.java:480)
> >       at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:299)
> >       at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java
> :433)
> >       at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:310)
> >       at org.apache.derby.impl.tools.ij.Main.go(Main.java:203)
> >       at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:169)
> >       at org.apache.derby.impl.tools.ij.Main14.main(Main14.java:55)
> >       at org.apache.derby.tools.ij.main(ij.java:60)
>
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