Legend: Updates display name for Last (not null) to just Last* (#35633)

* Legend: Updates display name for Last (not null) to just Last*

* added description

* Removed the asterix

* Added back * suffix

packages/grafana-data/src/transformations/fieldReducer.ts

@@ -129,7 +129,7 @@ export function reduceField(options: ReduceFieldOptions): FieldCalcs {
 export const fieldReducers = new Registry<FieldReducerInfo>(() => [
   {
     id: ReducerID.lastNotNull,
-    name: 'Last (not null)',
+    name: 'Last *',
     description: 'Last non-null value',
     standard: true,
     aliasIds: ['current'],
@@ -138,14 +138,14 @@ export const fieldReducers = new Registry<FieldReducerInfo>(() => [
   {
     id: ReducerID.last,
     name: 'Last',
-    description: 'Last Value',
+    description: 'Last value',
     standard: true,
     reduce: calculateLast,
   },
   { id: ReducerID.first, name: 'First', description: 'First Value', standard: true, reduce: calculateFirst },
   {
     id: ReducerID.firstNotNull,
-    name: 'First (not null)',
+    name: 'First',
     description: 'First non-null value',
     standard: true,
     reduce: calculateFirstNotNull,

packages/grafana-data/src/types/displayValue.ts

@@ -16,6 +16,11 @@ export interface DisplayValue extends FormattedValue {
    */
   color?: string;
   title?: string;
+
+  /**
+   * Used in limited scenarios like legend reducer calculations
+   */
+  description?: string;
 }
 
 /**