Hello Team, I have been trying to upgrade Solr 6.3.0 to 7.5.0 and I do not want to re-index. I tried it using the Index Upgrader Tool <https://lucene.apache.org/solr/guide/7_5/indexupgrader-tool.html>. The tool did its part and the current index is according to the current file format.
The problem I am facing is with fields which have docValues enabled in the current configuration but was not in the earlier configuration. The error I get is *java.lang.IllegalStateException: unexpected docvalues type NONE for field 'abc' (expected one of [SORTED, SORTED_SET]). Re-index with correct docvalues type.* Field type in old configuration - string (solr.StrField) indexed and stored set to true. Field type in new configuration - solr.SortableTextField (docValues enabled) Is there any way I can upgrade with the current field configuration without having to re-index? Best, Ritesh Kumar
