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https://issues.apache.org/jira/browse/CALCITE-2196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16379765#comment-16379765
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Julian Hyde commented on CALCITE-2196:
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Your PR
[4e21e7b|https://github.com/apache/calcite/pull/639/commits/4e21e7bc60524bc607502e7b951feedd94d8d65b]
looks good; I am testing now. Can you add those instructions to the
documentation (maybe a new section in howto.md), and I will commit?
> Update codeGen of metadataHandler in JaninoRelMetadataProvider to include
> Class definition at begin of dynamic code.
> --------------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-2196
> URL: https://issues.apache.org/jira/browse/CALCITE-2196
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: jingzhang
> Assignee: Julian Hyde
> Priority: Trivial
>
> JaninoRelMetadataProvider uses IClassBodyEvaluator to compile generated code.
> The generated classes can not be debugged in interactively using Idea using
> the method referenced by http://janino-compiler.github.io/janino/ because
> generated code only contains classBody.
> If using ISimpleCompiler to compile complete compile unit instead of
> classBody, we could step into the code.
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