Github user JonZeolla commented on the issue:
https://github.com/apache/metron/pull/827
I didn't get myself intimately familiar with this PR, but I wanted to
mention that assuming two fields with the same name but different types between
indexes are not the same may not always hold. For instance, in bro there are a
couple of field names that overlap between bro logs, and so the type in the bro
index needs to be one that can commonly work (usually string), but if there was
no overlap it would be a different type.
[Example](https://github.com/JonZeolla/metron/blob/master/metron-deployment/packaging/ambari/metron-mpack/src/main/resources/common-services/METRON/CURRENT/package/files/bro_index.template#L131-L134).
Not even positive this is relevant (especially given
`getCommonColumnMetadata` may just get removed), but in case it is I wanted to
mention it.
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