I was reading this ticket, and it seems like a really exciting change: https://github.com/apache/lucene-solr/pull/715
One constraint mentioned here:
- The segments must have at most one field value per document (otherwise we cannot easily
determine the matching document IDs through a binary search).
He means DocValues I assume? You can still add other field values to the document. Otherwise, it seems relatively pointless. Would like to confirm since they are being very loose with the wording.