To those who noticed SortableTextField in Solr 7.3 and are curious whether it is useful, it seems to be.
I've just finished a presentation at a Montreal Solr meetup on a rapid schema evolution. I based it on a simplest schema/solrconfig that used SortableTextField to make the initial data ingestion super-simple. The presentation is at: https://www.slideshare.net/arafalov/rapid-solr-schema-development-phone-directory The git repo to match it, including all the schema changes (as separate commits) and the actual dataset is at: https://github.com/arafalov/solr-presentation-2018-may Any comments/suggestions would be appreciated. Hope this is useful, Alex.