Github user zentol commented on the pull request:
https://github.com/apache/flink/pull/1045#issuecomment-139234472
@fhueske well I'm still waiting for an answer as to how to proceed. Either
return a MissingTypeInfo or throw some checked Exception when the type could
not be determined. This is just a choice of style; both solutions require a
pass over (probably) all calls to type extractor methods.
It might also be a good idea to separate the original fix (in the first
commit) from the exception stuff. The fix did not fail any tests and resolved
the issue, while the rest is essentially a refactoring.
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