Phlare: Set enum field type to enum instead of integer (#72078)

Co-authored-by: Leon Sorokin <leeoniya@gmail.com>

pkg/tsdb/grafana-pyroscope-datasource/query.go

@@ -318,7 +318,7 @@ type EnumField struct {
 
 func NewEnumField(name string, labels data.Labels) *EnumField {
 	return &EnumField{
-		field:     data.NewField(name, labels, []int64{}),
+		field:     data.NewField(name, labels, []data.EnumItemIndex{}),
 		valuesMap: make(map[string]int64),
 	}
 }
@@ -328,7 +328,7 @@ func (e *EnumField) Append(value string) {
 		e.field.Append(valueIndex)
 	} else {
 		e.valuesMap[value] = e.counter
-		e.field.Append(e.counter)
+		e.field.Append(data.EnumItemIndex(e.counter))
 		e.counter++
 	}
 }

pkg/tsdb/grafana-pyroscope-datasource/query_test.go

@@ -135,7 +135,7 @@ func Test_profileToDataFrame(t *testing.T) {
 	require.Equal(t, data.NewField("value", nil, []int64{20, 10, 5}).SetConfig(&data.FieldConfig{Unit: "short"}), frame.Fields[1])
 	require.Equal(t, data.NewField("self", nil, []int64{1, 3, 5}).SetConfig(&data.FieldConfig{Unit: "short"}), frame.Fields[2])
 	require.Equal(t, "label", frame.Fields[3].Name)
-	require.Equal(t, []int64{0, 1, 2}, fieldValues[int64](frame.Fields[3]))
+	require.Equal(t, []data.EnumItemIndex{0, 1, 2}, fieldValues[data.EnumItemIndex](frame.Fields[3]))
 	require.Equal(t, []string{"func1", "func2", "func3"}, frame.Fields[3].Config.TypeConfig.Enum.Text)
 }
 
@@ -214,7 +214,7 @@ func Test_treeToNestedDataFrame(t *testing.T) {
 				data.NewField("level", nil, []int64{0, 1, 1, 2}),
 				data.NewField("value", nil, []int64{100, 40, 30, 15}).SetConfig(&data.FieldConfig{Unit: "short"}),
 				data.NewField("self", nil, []int64{1, 2, 3, 4}).SetConfig(&data.FieldConfig{Unit: "short"}),
-				data.NewField("label", nil, []int64{0, 1, 2, 3}).SetConfig(labelConfig),
+				data.NewField("label", nil, []data.EnumItemIndex{0, 1, 2, 3}).SetConfig(labelConfig),
 			}, frame.Fields)
 	})
 

public/app/plugins/panel/flamegraph/components/FlameGraph/dataTransform.ts

@@ -1,12 +1,4 @@
-import {
-  createTheme,
-  DataFrame,
-  DisplayProcessor,
-  Field,
-  FieldType,
-  getDisplayProcessor,
-  GrafanaTheme2,
-} from '@grafana/data';
+import { createTheme, DataFrame, DisplayProcessor, Field, getDisplayProcessor, GrafanaTheme2 } from '@grafana/data';
 
 import { SampleUnit } from '../types';
 
@@ -107,8 +99,6 @@ export class FlameGraphDataContainer {
     // both a backward compatibility but also to allow using a simple dataFrame without enum config. This would allow
     // users to use this panel with correct query from data sources that do not return profiles natively.
     if (enumConfig) {
-      // TODO: Fix this from backend to set field type to enum correctly
-      this.labelField.type = FieldType.enum;
       this.labelDisplayProcessor = getDisplayProcessor({ field: this.labelField, theme });
       this.uniqueLabels = enumConfig.text || [];
     } else {