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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-766) Improve code generation to handle 5000 unions in a select the union test in largeCodeGen
Date Wed, 31 Oct 2007 16:47:50 GMT

    [ https://issues.apache.org/jira/browse/DERBY-766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539118
] 

Daniel John Debrunner commented on DERBY-766:
---------------------------------------------

I don't have a 10.1 codeline handy but this error:

java.lang.NoSuchMethodException: org.apache.derby.iapi.sql.execute.ResultSetFactory.getNestedLoopJoinResultSet(org.apach
e.derby.iapi.sql.execute.ResultSetFactory, org.apache.derby.iapi.sql.execute.NoPutResultSet,
int, org.apache.derby.iapi.
sql.execute.NoPutResultSet, int, org.apache.derby.iapi.services.loader.GeneratedMethod, int,
boolean, boolean, double, d 

says that it's looking for a getNestedLoopJoinResultSet() method with a ResultSetFactory as
its first argument. I don't think any of the ResultSets constructors take a ResultSetFactory
argument.

The error most likely is  the wrong number of arguments (one too many)  are being passed in
to the invoke method call so that it is picking up the ResultSetFactory intended for another
ResultSet creation.

> Improve code generation to handle 5000 unions in a select the  union test  in largeCodeGen
> ------------------------------------------------------------------------------------------
>
>                 Key: DERBY-766
>                 URL: https://issues.apache.org/jira/browse/DERBY-766
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Services
>    Affects Versions: 10.2.1.6
>            Reporter: Kathey Marsden
>            Assignee: Daniel John Debrunner
>             Fix For: 10.2.1.6, 10.3.1.4
>
>         Attachments: 372692_10_1_diff.txt
>
>
> A good incremental improvement for code generation for 10.2 would be to handle 5000 unions
in the  largeCodeGen test.
> eg.   largeUnionSelect(con, viewName, 5000);
> should pass.

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