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https://issues.apache.org/jira/browse/DERBY-766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539130
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Mamta A. Satoor commented on DERBY-766:
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Actually, Kathey, if you look at the changes that went in as commit 372692, you
will notice that there was following change in
db/derby/code/trunk/java/engine/org/apache/derby/impl/sql/compile/JoinNode.java.
protected int getNumJoinArguments()
{
- return 13;
+ return 12;
}
But since the current 10.1 codeline already has getNumJoinArguments at 12, the
number of arguments never got decremented when we merged 372692 from trunk into
10.1 and that is why we saw the mismatch in number of arguments. Hope this
explains why the merge seem to go through but the test case failed.
> 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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