private Result doSearch(Query query) {
        if (schema2Searcher.size() > 1) {
            return searchMultipleDocumentTypes(query);
        } else {
            String schema = schema2Searcher.keySet().iterator().next();
            query.getModel().setRestrict(schema);
            return perSchemaSearch(schema, query);
        }
    }
Do not use, for internal testing purposes only. *
container-search/src/main/java/com/yahoo/prelude/cluster/ClusterSearcher.java