adds ranking for multi document queries only

source/net/yacy/http/servlets/SolrSelectServlet.java

@@ -182,10 +182,11 @@ public class SolrSelectServlet extends HttpServlet {
             } 
             mmsp.getMap().put(CommonParams.ROWS, new String[]{Integer.toString(Math.min(mmsp.getInt(CommonParams.ROWS, CommonParams.ROWS_DEFAULT), (authenticated) ? 100000000 : 100))});
             boolean zeroDoc = mmsp.getInt(CommonParams.ROWS, CommonParams.ROWS_DEFAULT) < 1;
+            boolean multiDoc = mmsp.getInt(CommonParams.ROWS, CommonParams.ROWS_DEFAULT) > 1;
 
             // set ranking according to profile number if ranking attributes are not given in the request
             Ranking ranking = sb.index.fulltext().getDefaultConfiguration().getRanking(profileNr);
-            if (!zeroDoc && !mmsp.getMap().containsKey(CommonParams.SORT) && !mmsp.getMap().containsKey(DisMaxParams.BQ) && !mmsp.getMap().containsKey(DisMaxParams.BF) && !mmsp.getMap().containsKey("boost")) {
+            if (multiDoc && !mmsp.getMap().containsKey(CommonParams.SORT) && !mmsp.getMap().containsKey(DisMaxParams.BQ) && !mmsp.getMap().containsKey(DisMaxParams.BF) && !mmsp.getMap().containsKey("boost")) {
                 if (!mmsp.getMap().containsKey("defType")) mmsp.getMap().put("defType", new String[]{"edismax"});        
                 String fq = ranking.getFilterQuery();
                 String bq = ranking.getBoostQuery();
@@ -243,6 +244,7 @@ public class SolrSelectServlet extends HttpServlet {
             if (connector == null) throw new ServletException("no core");
 
             // add default queryfield parameter according to local ranking config (or defaultfield)
+            if (multiDoc) {
                 if (ranking != null) { // ranking normally never null
                     final String qf = ranking.getQueryFields();
                     if (qf.length() > 4 && !mmsp.getMap().containsKey(DisMaxParams.QF)) { // make sure qf has content (else use df)
@@ -254,6 +256,7 @@ public class SolrSelectServlet extends HttpServlet {
                 } else if(!mmsp.getMap().containsKey(CommonParams.DF)) {
                     mmsp.getMap().put(CommonParams.DF, new String[]{CollectionSchema.text_t.getSolrFieldName()});
                 }
+            }
 
             // do the solr request, generate facets if we use a special YaCy format
             final SolrQueryResponse rsp;