I need some clarity on atomic vs in-place updates. For atomic I understand that all fields need to be stored, either explicitly or through docValues, since the entire document is re-indexed.
For in-place updates, the documentation states that only the fields being modified are updated, but does that mean that all other fields don't need to be stored? My real problem is that we are calculating authority-like and popularity scores for our documents in an external process, and would actually prefer to use something like ExternalFileField for those values. But EFF is not really SolrCloud-friendly, and we have a fairly mature indexing process in place already. It might be more palatable for us to do an in-place update, rather than deal with the operational issues of dropping files into every shard of a collection, but only IF we don't need to change our existing schemas to store everything which might not be stored today. Thanks in advance.
