We need to index and search lots of tweets which can like "@solr: solr is great". or "@solr_lucene, good combination".
And we want to search with "@solr" or "@solr_lucene". How can we preserve "@" and "_" in the index? If using whitespacetokennizer followed by worddelimiterfilter, @solr_lucene will be broken down into "solr" and "lucene", which make the search results contain lots of non-relevant docs. If using standardtokenizer, the "@" symbol is stripped. Thanks, Ming-
