Explore: Match queries that are longer than defined Graphite/Loki mapping (#34003)

public/app/plugins/datasource/loki/importing/fromGraphite.ts

@@ -49,7 +49,7 @@ function fromGraphite(graphiteQuery: GraphiteQueryModel, config: GraphiteToLokiQ
     });
   } else {
     const targetNodes = graphiteQuery.segments.map((segment) => segment.value);
-    let mappings = config.mappings.filter((mapping) => mapping.matchers.length === targetNodes.length);
+    let mappings = config.mappings.filter((mapping) => mapping.matchers.length <= targetNodes.length);
 
     for (let mapping of mappings) {
       const matchers = mapping.matchers.concat();

public/app/plugins/datasource/loki/importing/importing.test.ts

@@ -40,6 +40,7 @@ describe('importing from Graphite queries', () => {
       [
         // metrics: captured
         mockGraphiteQuery('interpolate(alias(servers.west.001.cpu,1,2))'),
+        mockGraphiteQuery('interpolate(alias(servers.east.001.request.POST.200,1,2))'),
         mockGraphiteQuery('interpolate(alias(servers.*.002.*,1,2))'),
         // tags: captured
         mockGraphiteQuery("interpolate(seriesByTag('cluster=west', 'server=002'), inf))"),
@@ -53,6 +54,7 @@ describe('importing from Graphite queries', () => {
 
     expect(lokiQueries).toMatchObject([
       { refId: 'A', expr: '{cluster="west", server="001"}' },
+      { refId: 'A', expr: '{cluster="east", server="001"}' },
       { refId: 'A', expr: '{server="002"}' },
       { refId: 'A', expr: '{cluster="west", server="002"}' },
       { refId: 'A', expr: '{foo="bar", server="002"}' },