Fix NaN for variables

provisioning/datasources/redis.yaml

@@ -5,7 +5,6 @@ datasources:
     type: redis-datasource
     access: proxy
     orgId: 1
-    isDefault: true
     version: 1
     url: redis://host.docker.internal:6379
     jsonData:

src/data-source/data-source.test.ts

@@ -298,6 +298,39 @@ describe('DataSource', () => {
     });
   });
 
+  it('Should call query method with numbers', (done) => {
+    const querySpyMethod = jest.spyOn(dataSource, 'query').mockImplementation(
+      () =>
+        new Observable((subscriber) => {
+          subscriber.next({
+            data: [
+              {
+                fields: [
+                  {
+                    name: 'get',
+                    values: {
+                      toArray() {
+                        return new Float64Array([21, 31]);
+                      },
+                    },
+                  },
+                ],
+                length: 1,
+              },
+            ],
+          });
+          subscriber.complete();
+        })
+    );
+
+    dataSource.metricFindQuery &&
+      dataSource.metricFindQuery('123', { variable: { datasource: '123' } }).then((result: MetricFindValue[]) => {
+        expect(querySpyMethod).toHaveBeenCalled();
+        expect(result).toEqual([{ text: 21 }, { text: 31 }]);
+        done();
+      });
+  });
+
   afterAll(() => {
     superQueryMock.mockReset();
     setTemplateSrv(null as any);

src/data-source/data-source.ts

@@ -48,16 +48,19 @@ export class DataSource extends DataSourceWithBackend<RedisQuery, RedisDataSourc
      * Run Query
      */
     return this.query({
-      targets: [{ datasource: options.variable.datasource, query: query }],
+      targets: [{ refId: 'A', datasource: options.variable.datasource, query: query }],
     } as DataQueryRequest<RedisQuery>)
       .pipe(
         switchMap$((response) => response.data),
         switchMap$((data: DataFrame) => data.fields),
-        map$((field) =>
-          field.values.toArray().map((value) => {
-            return { text: value };
-          })
-        )
+        map$((field) => {
+          const values: MetricFindValue[] = [];
+          field.values.toArray().forEach((value) => {
+            values.push({ text: value });
+          });
+
+          return values;
+        })
       )
       .toPromise();
   }