Hi, I recently tried upgrading our setup from 4.5.1 to 4.7+, and I'm seeing an exception when I use (1) a function to sort and (2) result grouping. The same query works fine with either (1) or (2) alone. Example below.
At a glance, it looks similar to: https://issues.apache.org/jira/browse/SOLR-5920 I don't think it's our schema, but I'm happy to further isolate if it's not obvious. Thanks, Nate Example (v4.8.1): { "responseHeader": { "status": 500, "QTime": 14, "params": { "sort": "sum(1,1) desc", "indent": "true", "q": "title:solr", "_": "1403586036335", "group.field": "type", "group": "true", "wt": "json" } }, "error": { "msg": "java.lang.Double cannot be cast to org.apache.lucene.util.BytesRef", "trace": "org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: java.lang.Double cannot be cast to org.apache.lucene.util.BytesRef "code": 500 } } >From the log: org.apache.solr.common.SolrException; null:java.lang.ClassCastException: java.lang.Double cannot be cast to org.apache.lucene.util.BytesRef at org.apache.solr.schema.FieldType.marshalStringSortValue(FieldType.java:981) at org.apache.solr.schema.TextField.marshalSortValue(TextField.java:176) at org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.serializeSearchGroup(SearchGroupsResultTransformer.java:125) at org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.transform(SearchGroupsResultTransformer.java:65) at org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer.transform(SearchGroupsResultTransformer.java:43) at org.apache.solr.search.grouping.CommandHandler.processResult(CommandHandler.java:193) -- Nate Dire Software Engineer http://www.highspot.com
