: Would it be a good idea to have Solr throw syntax error if an empty string : query occurs?
erick's explanation wasn't very precise ... solr doesn't have any special handling of "empty strings", but what you are searching for *might* be a totally valid query based on how the field type is configured (ie: strfield, or keywordtokenizer, etc... in your case, you seem to be seraching for "" in a field for the analyzer produces no tokens for "", so it falls out of the query. -Hoss
