dont query for costs if len(terms) < 2

Author: mchrome

autocomplete/autocomplete.go

@@ -116,8 +116,12 @@ func (h *Handler) requestExpr(r *http.Request, tcq *finder.TagCountQuerier, from
 		if err != nil {
 			return wr, pw, usedTags, err
 		}
+		if tagValuesCosts != nil {
+			finder.SetCosts(terms, tagValuesCosts)
+		} else if len(h.config.ClickHouse.TaggedCosts) != 0 {
+			finder.SetCosts(terms, h.config.ClickHouse.TaggedCosts)
+		}
 
-		finder.SetCosts(terms, tagValuesCosts)
 	}
 
 	finder.SortTaggedTermsByCost(terms)

finder/tags_count_querier.go

@@ -38,6 +38,10 @@ func NewTagCountQuerier(url, table string, opts clickhouse.Options, useCarbonBeh
 }
 
 func (tcq *TagCountQuerier) GetCostsFromCountTable(ctx context.Context, terms []TaggedTerm, from int64, until int64) (map[string]*config.Costs, error) {
+	if len(terms) < 2 {
+		return nil, nil
+	}
+
 	w := where.New()
 	eqTermCount := 0