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https://issues.apache.org/jira/browse/BEAM-7724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898550#comment-16898550
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Rui Wang commented on BEAM-7724:
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[~sridharG]
I think you are right. The link I posted covers the case when reading from
upstream. Out test covers only literal, which is not from upstream so will not
go through the path in link. Feel free to close this JIRA then.
Meanwhile, if you are still interested in, could you take a look at
https://issues.apache.org/jira/browse/BEAM-7146?
> Codegen should cast(null) to a type to match exact function signature
> ---------------------------------------------------------------------
>
> Key: BEAM-7724
> URL: https://issues.apache.org/jira/browse/BEAM-7724
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Rui Wang
> Assignee: sridhar Reddy
> Priority: Major
>
> If there are two function signatures for the same function name, when input
> parameter is null, Janino will throw exception due to vagueness:
> A(String)
> A(Integer)
> Janino does not know how to match A(null).
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