Since only predicatePushdown failed, I generated a
context diff for this one file. I already have a bunch
of other uncommitted changes in my view, so I'm not
sure how I can generate one patch file without pulling
in a lot of other stuff.

The following sequence of steps should work.

1. Apply the complete patch (578.patch.txt). 
2. revert predicatePushdown
3. patch predicatePushdown.

Manish

--- "Rick Hillegas (JIRA)" <derby-dev@db.apache.org>
wrote:

>     [
>
http://issues.apache.org/jira/browse/DERBY-578?page=comments#action_12416588
> ] 
> 
> Rick Hillegas commented on DERBY-578:
> -------------------------------------
> 
> Hi Manish,
> 
> I'm confused about what I'm supposed to do with the
> latest attachment. It looks like it might just be
> the changes to predicatePushdown.out. Could you give
> me a single patch file which contains everything I
> need to apply this patch and which I can apply with
> a single patch command? Thanks-Rick
> 
> > 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: SQL, Services
> >     Reporter: Rick Hillegas
> >     Assignee: Manish Khettry
> >  Attachments: 578.diff.txt,
> predicatePushdown.out.patch
> >
> > 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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