Github user mmiklavc commented on the issue:
https://github.com/apache/metron/pull/995
@justinleet
> They may not know, or even be able to easily discover, what fields are
poly types and what aren't.
@cestella, @merrimanr
>>Are date fields polyfields?
>I don't know. At this point I am not sure how to determine if a field is a
polyfield or not. The isPolyField method is internal and I don't have access to
it in Solrj.
I think the proof of @justinleet 's point is made abundantly clear by our
very own discussion on the subject.
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