eliaporciani commented on code in PR #904:
URL: https://github.com/apache/solr/pull/904#discussion_r911773738
##########
solr/core/src/java/org/apache/solr/search/QueryUtils.java:
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@@ -215,4 +221,38 @@ public static Query combineQueryAndFilter(Query
scoreQuery, Query filterQuery) {
}
}
}
+
+ /**
+ * Parse the filter queries in Solr request
+ *
+ * @param req Solr request
+ * @param fixNegativeQueries if true, negative queries are rewritten by
adding a MatchAllDocs
+ * query clause
+ * @return and array of Query. If the request does not contain filter
queries, returns an empty
+ * list.
+ * @throws SyntaxError if an error occurs during parsing
+ */
+ public static List<Query> parseFilterQueries(SolrQueryRequest req, boolean
fixNegativeQueries)
+ throws SyntaxError {
+
+ String[] filterQueriesStr = req.getParams().getParams(CommonParams.FQ);
+
+ if (filterQueriesStr != null) {
+ List<Query> filters = new ArrayList<>(filterQueriesStr.length);
+ for (String fq : filterQueriesStr) {
+ if (fq != null && fq.trim().length() != 0) {
+ QParser fqp = QParser.getParser(fq, req);
+ fqp.setIsFilter(true);
Review Comment:
I think that adding this kind of parameter might make the method more
confused and would discourage future usage.
The method parseFilterQueries aims to parse filter queries and
setIsFilter(true) is correct in this scenario. Moreover, setIsFilter(true) is
not harmful as it is needed for optimizing the query execution for queries that
do not need scoring.
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