[jira] [Commented] (DRILL-2503) Having many WHENs causes ClassReader.accept()/EXPAND_FRAMES error

["Chris Westin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-2503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14370232#comment-14370232 ] 

Chris Westin commented on DRILL-2503:
-------------------------------------

Where's a good place in jdbc land to add this test case permanently (as part of the fix)?

> Having many WHENs causes ClassReader.accept()/EXPAND_FRAMES error
> -----------------------------------------------------------------
>
>                 Key: DRILL-2503
>                 URL: https://issues.apache.org/jira/browse/DRILL-2503
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Codegen
>    Affects Versions: 0.8.0
>            Reporter: Daniel Barclay (Drill)
>            Assignee: Chris Westin
>            Priority: Critical
>         Attachments: Drill2503CaseManyWhensFailsTest.java
>
>
> Having many WHEN clauses in CASE expressions in a query yields a error message saying "Query failed: RemoteRpcException: Failure while running fragment., ClassReader.accept() should be called with EXPAND_FRAMES flag".
> (It's not just the number of WHEN clauses in each CASE expression that matters, but the total number.   (Deleting some from either caused the query to work again, and then adding more WHENs in the other CASE expression caused the query to fail again.))



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