Prometheus: Add group function to aggregations (#91363)

add group function to aggregations

packages/grafana-prometheus/src/querybuilder/aggregations.ts

@@ -16,6 +16,7 @@ export function getAggregationOperations(): QueryBuilderOperationDef[] {
     ...createAggregationOperation(PromOperationId.Min),
     ...createAggregationOperation(PromOperationId.Max),
     ...createAggregationOperation(PromOperationId.Count),
+    ...createAggregationOperation(PromOperationId.Group),
     ...createAggregationOperationWithParam(PromOperationId.TopK, {
       params: [{ name: 'K-value', type: 'number' }],
       defaultParams: [5],

packages/grafana-prometheus/src/querybuilder/operations.ts

@@ -195,7 +195,6 @@ export function getOperationDefinitions(): QueryBuilderOperationDef[] {
     //
     createFunction({ id: PromOperationId.Exp }),
     createFunction({ id: PromOperationId.Floor }),
-    createFunction({ id: PromOperationId.Group }),
     createFunction({ id: PromOperationId.Hour }),
     createFunction({
       id: PromOperationId.LabelJoin,

packages/grafana-prometheus/src/querybuilder/parsing.test.ts

@@ -783,6 +783,21 @@ describe('buildVisualQueryFromString', () => {
       })
     );
   });
+
+  it('parses the group function as an aggregation', () => {
+    expect(buildVisualQueryFromString('group by (job) (go_goroutines)')).toEqual(
+      noErrors({
+        metric: 'go_goroutines',
+        labels: [],
+        operations: [
+          {
+            id: '__group_by',
+            params: ['job'],
+          },
+        ],
+      })
+    );
+  });
 });
 
 function noErrors(query: PromVisualQuery) {