Feature toggle: Remove groupToNestedTableTransformation feature toggle (#113761)

Remove groupToNestedTableTransformation feature toggle

The group to nested table transformation has reached GA and is now
enabled by default. This commit removes the feature toggle and makes
the transformation always available.

Changes:
- Removed feature toggle definition from registry.go
- Updated standardTransformers.ts to always include the transformation
- Updated feature toggles documentation
- Regenerated feature toggle files

docs/sources/setup-grafana/configure-grafana/feature-toggles/index.md

@@ -49,7 +49,6 @@ Most [generally available](https://grafana.com/docs/release-life-cycle/#general-
 | `logRowsPopoverMenu`                   | Enable filtering menu displayed when text of a log line is selected                                                                                           | Yes                |
 | `alertingQueryOptimization`            | Optimizes eligible queries in order to reduce load on datasources                                                                                             |                    |
 | `onPremToCloudMigrations`              | Enable the Grafana Migration Assistant, which helps you easily migrate various on-prem resources to your Grafana Cloud stack.                                 | Yes                |
-| `groupToNestedTableTransformation`     | Enables the group to nested table transformation                                                                                                              | Yes                |
 | `newPDFRendering`                      | New implementation for the dashboard-to-PDF rendering                                                                                                         | Yes                |
 | `cloudWatchNewLabelParsing`            | Updates CloudWatch label parsing to be more accurate                                                                                                          | Yes                |
 | `pluginProxyPreserveTrailingSlash`     | Preserve plugin proxy trailing slash.                                                                                                                         |                    |

packages/grafana-data/src/types/featureToggles.gen.ts

@@ -482,11 +482,6 @@ export interface FeatureToggles {
   */
   sqlExpressionsColumnAutoComplete?: boolean;
   /**
-  * Enables the group to nested table transformation
-  * @default true
-  */
-  groupToNestedTableTransformation?: boolean;
-  /**
   * New implementation for the dashboard-to-PDF rendering
   * @default true
   */

pkg/services/featuremgmt/registry.go

@@ -817,14 +817,6 @@ var (
 			FrontendOnly: true,
 			Owner:        grafanaDataProSquad,
 		},
-		{
-			Name:         "groupToNestedTableTransformation",
-			Description:  "Enables the group to nested table transformation",
-			Stage:        FeatureStageGeneralAvailability,
-			FrontendOnly: true,
-			Owner:        grafanaDataProSquad,
-			Expression:   "true", // enabled by default,
-		},
 		{
 			Name:        "newPDFRendering",
 			Description: "New implementation for the dashboard-to-PDF rendering",

pkg/services/featuremgmt/toggles_gen.csv

@@ -107,7 +107,6 @@ useMultipleScopeNodesEndpoint,experimental,@grafana/grafana-operator-experience-
 logQLScope,privatePreview,@grafana/observability-logs,false,false,false
 sqlExpressions,preview,@grafana/grafana-datasources-core-services,false,false,false
 sqlExpressionsColumnAutoComplete,experimental,@grafana/datapro,false,false,true
-groupToNestedTableTransformation,GA,@grafana/datapro,false,false,true
 newPDFRendering,GA,@grafana/grafana-operator-experience-squad,false,false,false
 kubernetesAggregator,experimental,@grafana/grafana-app-platform-squad,false,true,false
 kubernetesAggregatorCapTokenAuth,experimental,@grafana/grafana-app-platform-squad,false,true,false

pkg/services/featuremgmt/toggles_gen.go

@@ -439,10 +439,6 @@ const (
 	// Enables column autocomplete for SQL Expressions
 	FlagSqlExpressionsColumnAutoComplete = "sqlExpressionsColumnAutoComplete"
 
-	// FlagGroupToNestedTableTransformation
-	// Enables the group to nested table transformation
-	FlagGroupToNestedTableTransformation = "groupToNestedTableTransformation"
-
 	// FlagNewPDFRendering
 	// New implementation for the dashboard-to-PDF rendering
 	FlagNewPDFRendering = "newPDFRendering"

pkg/services/featuremgmt/toggles_gen.json

@@ -1963,6 +1963,7 @@
         "name": "groupToNestedTableTransformation",
         "resourceVersion": "1762442825881",
         "creationTimestamp": "2024-02-07T14:28:26Z",
+        "deletionTimestamp": "2025-11-12T14:33:44Z",
         "annotations": {
           "grafana.app/updatedTimestamp": "2025-11-06 15:27:05.88172 +0000 UTC"
         }

public/app/features/transformers/standardTransformers.ts

@@ -66,7 +66,7 @@ export const getStandardTransformers = (): TransformerRegistryItem[] => {
     getRegressionTransformerRegistryItem(),
     getPartitionByValuesTransformRegistryItem(),
     ...(config.featureToggles.formatString ? [getFormatStringTransformerRegistryItem()] : []),
-    ...(config.featureToggles.groupToNestedTableTransformation ? [getGroupToNestedTableTransformRegistryItem()] : []),
+    getGroupToNestedTableTransformRegistryItem(),
     getFormatTimeTransformerRegistryItem(),
     getTimeSeriesTableTransformRegistryItem(),
     getTransposeTransformerRegistryItem(),