Chore: swap [value,time] order when converting to DataFrame (#23206)

packages/grafana-data/src/dataframe/processDataFrame.test.ts

@@ -21,16 +21,17 @@ describe('toDataFrame', () => {
       ],
     };
     let series = toDataFrame(input1);
-    expect(series.fields[0].name).toBe(input1.target);
+    expect(series.fields[1].name).toBe(input1.target);
 
     const v0 = series.fields[0].values;
     const v1 = series.fields[1].values;
     expect(v0.length).toEqual(2);
+    expect(v0.get(0)).toEqual(1);
+    expect(v0.get(1)).toEqual(2);
+
     expect(v1.length).toEqual(2);
-    expect(v0.get(0)).toEqual(100);
-    expect(v0.get(1)).toEqual(200);
-    expect(v1.get(0)).toEqual(1);
-    expect(v1.get(1)).toEqual(2);
+    expect(v1.get(0)).toEqual(100);
+    expect(v1.get(1)).toEqual(200);
 
     // Should fill a default name if target is empty
     const input2 = {
@@ -42,7 +43,7 @@ describe('toDataFrame', () => {
       ],
     };
     series = toDataFrame(input2);
-    expect(series.fields[0].name).toEqual('Value');
+    expect(series.fields[1].name).toEqual('Value');
   });
 
   it('assumes TimeSeries values are numbers', () => {
@@ -54,7 +55,8 @@ describe('toDataFrame', () => {
       ],
     };
     const data = toDataFrame(input1);
-    expect(data.fields[0].type).toBe(FieldType.number);
+    expect(data.fields[0].type).toBe(FieldType.time);
+    expect(data.fields[1].type).toBe(FieldType.number);
   });
 
   it('keeps dataFrame unchanged', () => {

packages/grafana-data/src/dataframe/processDataFrame.ts

@@ -67,6 +67,12 @@ function convertTimeSeriesToDataFrame(timeSeries: TimeSeries): DataFrame {
 
   const fields = [
     {
+      name: 'Time',
+      type: FieldType.time,
+      config: {},
+      values: new ArrayVector<number>(times),
+    },
+    {
       name: timeSeries.target || 'Value',
       type: FieldType.number,
       config: {
@@ -75,12 +81,6 @@ function convertTimeSeriesToDataFrame(timeSeries: TimeSeries): DataFrame {
       values: new ArrayVector<TimeSeriesValue>(values),
       labels: timeSeries.tags,
     },
-    {
-      name: 'Time',
-      type: FieldType.time,
-      config: {},
-      values: new ArrayVector<number>(times),
-    },
   ];
 
   return {
@@ -285,23 +285,22 @@ export const toLegacyResponseData = (frame: DataFrame): TimeSeries | TableData =
   const rowCount = frame.length;
   const rows: any[][] = [];
 
+  if (fields.length === 2) {
+    const { timeField, timeIndex } = getTimeField(frame);
+    if (timeField) {
+      const valueIndex = timeIndex === 0 ? 1 : 0;
+
+      // Make sure it is [value,time]
       for (let i = 0; i < rowCount; i++) {
-    const row: any[] = [];
-    for (let j = 0; j < fields.length; j++) {
-      row.push(fields[j].values.get(i));
-    }
-    rows.push(row);
+        rows.push([
+          fields[valueIndex].values.get(i), // value
+          fields[timeIndex!].values.get(i), // time
+        ]);
       }
 
-  if (fields.length === 2) {
-    let type = fields[1].type;
-    if (!type) {
-      type = guessFieldTypeForField(fields[1]) || FieldType.other;
-    }
-    if (type === FieldType.time) {
       return {
-        alias: fields[0].name || frame.name,
-        target: fields[0].name || frame.name,
+        alias: fields[valueIndex].name || frame.name,
+        target: fields[valueIndex].name || frame.name,
         datapoints: rows,
         unit: fields[0].config ? fields[0].config.unit : undefined,
         refId: frame.refId,
@@ -310,6 +309,14 @@ export const toLegacyResponseData = (frame: DataFrame): TimeSeries | TableData =
     }
   }
 
+  for (let i = 0; i < rowCount; i++) {
+    const row: any[] = [];
+    for (let j = 0; j < fields.length; j++) {
+      row.push(fields[j].values.get(i));
+    }
+    rows.push(row);
+  }
+
   if (frame.meta && frame.meta.json) {
     return {
       alias: fields[0].name || frame.name,

public/app/features/explore/utils/ResultProcessor.test.ts

@@ -23,8 +23,8 @@ const testContext = (options: any = {}) => {
     name: 'A-series',
     refId: 'A',
     fields: [
-      { name: 'A-series', type: FieldType.number, values: [4, 5, 6] },
       { name: 'time', type: FieldType.time, values: [100, 200, 300] },
+      { name: 'A-series', type: FieldType.number, values: [4, 5, 6] },
     ],
   });
 
@@ -100,8 +100,8 @@ describe('ResultProcessor', () => {
     describe('when calling getGraphResult', () => {
       it('then it should return correct graph result', () => {
         const { resultProcessor, dataFrames } = testContext();
-        const timeField = dataFrames[0].fields[1];
-        const valueField = dataFrames[0].fields[0];
+        const timeField = dataFrames[0].fields[0];
+        const valueField = dataFrames[0].fields[1];
         const theResult = resultProcessor.getGraphResult();
 
         expect(theResult).toEqual([
@@ -164,8 +164,8 @@ describe('ResultProcessor', () => {
     describe('when calling getLogsResult', () => {
       it('then it should return correct logs result', () => {
         const { resultProcessor, dataFrames } = testContext({ mode: ExploreMode.Logs });
-        const timeField = dataFrames[0].fields[1];
-        const valueField = dataFrames[0].fields[0];
+        const timeField = dataFrames[0].fields[0];
+        const valueField = dataFrames[0].fields[1];
         const logsDataFrame = dataFrames[1];
         const theResult = resultProcessor.getLogsResult();
 

public/app/features/explore/utils/ResultProcessor.ts

@@ -114,7 +114,7 @@ export class ResultProcessor {
 
 export function isTimeSeries(frame: DataFrame): boolean {
   if (frame.fields.length === 2) {
-    if (frame.fields[1].type === FieldType.time) {
+    if (frame.fields[0].type === FieldType.time) {
       return true;
     }
   }

public/app/plugins/datasource/cloudwatch/specs/datasource.test.ts

@@ -174,7 +174,7 @@ describe('CloudWatchDatasource', () => {
     it('should return series list', done => {
       ctx.ds.query(query).then((result: any) => {
         expect(result.data[0].name).toBe(response.results.A.series[0].name);
-        expect(result.data[0].fields[0].values.buffer[0]).toBe(response.results.A.series[0].points[0][0]);
+        expect(result.data[0].fields[1].values.buffer[0]).toBe(response.results.A.series[0].points[0][0]);
         done();
       });
     });
@@ -191,8 +191,8 @@ describe('CloudWatchDatasource', () => {
         response.results['A'].meta.gmdMeta = [{ Expression: `REMOVE_EMPTY(SEARCH('some expression'))`, Period: '300' }];
         ctx.ds.query(query).then((result: any) => {
           expect(result.data[0].name).toBe(response.results.A.series[0].name);
-          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
-          expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
+          expect(result.data[0].fields[1].config.links[0].title).toBe('View in CloudWatch console');
+          expect(decodeURIComponent(result.data[0].fields[1].config.links[0].url)).toContain(
             `region=us-east-1#metricsV2:graph={"view":"timeSeries","stacked":false,"title":"A","start":"2016-12-31T15:00:00.000Z","end":"2016-12-31T16:00:00.000Z","region":"us-east-1","metrics":[{"expression":"REMOVE_EMPTY(SEARCH(\'some expression\'))"}]}`
           );
           done();
@@ -206,7 +206,7 @@ describe('CloudWatchDatasource', () => {
         ];
         ctx.ds.query(query).then((result: any) => {
           expect(result.data[0].name).toBe(response.results.A.series[0].name);
-          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
+          expect(result.data[0].fields[1].config.links[0].title).toBe('View in CloudWatch console');
           expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
             `region=us-east-1#metricsV2:graph={"view":"timeSeries","stacked":false,"title":"A","start":"2016-12-31T15:00:00.000Z","end":"2016-12-31T16:00:00.000Z","region":"us-east-1","metrics":[{"expression":"REMOVE_EMPTY(SEARCH(\'first expression\'))"},{"expression":"REMOVE_EMPTY(SEARCH(\'second expression\'))"}]}`
           );
@@ -218,7 +218,7 @@ describe('CloudWatchDatasource', () => {
         response.results['A'].meta.gmdMeta = [{ Period: '300' }];
         ctx.ds.query(query).then((result: any) => {
           expect(result.data[0].name).toBe(response.results.A.series[0].name);
-          expect(result.data[0].fields[0].config.links[0].title).toBe('View in CloudWatch console');
+          expect(result.data[0].fields[1].config.links[0].title).toBe('View in CloudWatch console');
           expect(decodeURIComponent(result.data[0].fields[0].config.links[0].url)).toContain(
             `region=us-east-1#metricsV2:graph={\"view\":\"timeSeries\",\"stacked\":false,\"title\":\"A\",\"start\":\"2016-12-31T15:00:00.000Z\",\"end\":\"2016-12-31T16:00:00.000Z\",\"region\":\"us-east-1\",\"metrics\":[[\"AWS/EC2\",\"CPUUtilization\",\"InstanceId\",\"i-12345678\",{\"stat\":\"Average\",\"period\":\"300\"}]]}`
           );
@@ -230,7 +230,7 @@ describe('CloudWatchDatasource', () => {
         query.targets[0].expression = 'a * 2';
         response.results['A'].meta.searchExpressions = [];
         ctx.ds.query(query).then((result: any) => {
-          expect(result.data[0].fields[0].config.links).toBeUndefined();
+          expect(result.data[0].fields[1].config.links).toBeUndefined();
           done();
         });
       });
@@ -456,7 +456,7 @@ describe('CloudWatchDatasource', () => {
     it('should return series list', done => {
       ctx.ds.query(query).then((result: any) => {
         expect(result.data[0].name).toBe(response.results.A.series[0].name);
-        expect(result.data[0].fields[0].values.buffer[0]).toBe(response.results.A.series[0].points[0][0]);
+        expect(result.data[0].fields[1].values.buffer[0]).toBe(response.results.A.series[0].points[0][0]);
         done();
       });
     });

public/app/plugins/datasource/grafana-azure-monitor-datasource/app_insights/app_insights_datasource.test.ts

@@ -177,8 +177,8 @@ describe('AppInsightsDatasource', () => {
           const data = results.data[0] as DataFrame;
           expect(data.name).toEqual('PrimaryResult');
           expect(data.fields[0].values.length).toEqual(1);
-          expect(data.fields[1].values.get(0)).toEqual(1558278660000);
-          expect(data.fields[0].values.get(0)).toEqual(2.2075);
+          expect(data.fields[0].values.get(0)).toEqual(1558278660000);
+          expect(data.fields[1].values.get(0)).toEqual(2.2075);
         });
       });
     });
@@ -220,8 +220,8 @@ describe('AppInsightsDatasource', () => {
           const data = results.data[0] as DataFrame;
           expect(data.name).toEqual('paritionA');
           expect(data.fields[0].values.length).toEqual(1);
-          expect(data.fields[1].values.get(0)).toEqual(1558278660000);
-          expect(data.fields[0].values.get(0)).toEqual(2.2075);
+          expect(data.fields[0].values.get(0)).toEqual(1558278660000);
+          expect(data.fields[1].values.get(0)).toEqual(2.2075);
         });
       });
     });
@@ -280,8 +280,8 @@ describe('AppInsightsDatasource', () => {
           expect(results.data.length).toBe(1);
           const data = results.data[0] as DataFrame;
           expect(data.name).toEqual('exceptions/server');
-          expect(data.fields[1].values.get(0)).toEqual(1558278660000);
-          expect(data.fields[0].values.get(0)).toEqual(2.2075);
+          expect(data.fields[0].values.get(0)).toEqual(1558278660000);
+          expect(data.fields[1].values.get(0)).toEqual(2.2075);
         });
       });
     });
@@ -324,10 +324,10 @@ describe('AppInsightsDatasource', () => {
           const data = results.data[0] as DataFrame;
           expect(data.name).toEqual('exceptions/server');
           expect(data.fields[0].values.length).toEqual(2);
-          expect(data.fields[1].values.get(0)).toEqual(1504108800000);
-          expect(data.fields[0].values.get(0)).toEqual(3);
-          expect(data.fields[1].values.get(1)).toEqual(1504112400000);
-          expect(data.fields[0].values.get(1)).toEqual(6);
+          expect(data.fields[0].values.get(0)).toEqual(1504108800000);
+          expect(data.fields[1].values.get(0)).toEqual(3);
+          expect(data.fields[0].values.get(1)).toEqual(1504112400000);
+          expect(data.fields[1].values.get(1)).toEqual(6);
         });
       });
     });
@@ -377,18 +377,18 @@ describe('AppInsightsDatasource', () => {
             expect(results.data.length).toBe(2);
             let data = results.data[0] as DataFrame;
             expect(data.name).toEqual('exceptions/server{client/city="Miami"}');
-            expect(data.fields[0].values.length).toEqual(2);
-            expect(data.fields[1].values.get(0)).toEqual(1504108800000);
-            expect(data.fields[0].values.get(0)).toEqual(10);
-            expect(data.fields[1].values.get(1)).toEqual(1504112400000);
-            expect(data.fields[0].values.get(1)).toEqual(20);
+            expect(data.fields[1].values.length).toEqual(2);
+            expect(data.fields[0].values.get(0)).toEqual(1504108800000);
+            expect(data.fields[1].values.get(0)).toEqual(10);
+            expect(data.fields[0].values.get(1)).toEqual(1504112400000);
+            expect(data.fields[1].values.get(1)).toEqual(20);
             data = results.data[1] as DataFrame;
             expect(data.name).toEqual('exceptions/server{client/city="San Antonio"}');
-            expect(data.fields[0].values.length).toEqual(2);
-            expect(data.fields[1].values.get(0)).toEqual(1504108800000);
-            expect(data.fields[0].values.get(0)).toEqual(1);
-            expect(data.fields[1].values.get(1)).toEqual(1504112400000);
-            expect(data.fields[0].values.get(1)).toEqual(2);
+            expect(data.fields[1].values.length).toEqual(2);
+            expect(data.fields[0].values.get(0)).toEqual(1504108800000);
+            expect(data.fields[1].values.get(0)).toEqual(1);
+            expect(data.fields[0].values.get(1)).toEqual(1504112400000);
+            expect(data.fields[1].values.get(1)).toEqual(2);
           });
         });
       });

public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.test.ts

@@ -138,10 +138,10 @@ describe('AzureMonitorDatasource', () => {
         expect(results.data.length).toBe(1);
         const data = results.data[0] as DataFrame;
         expect(data.name).toEqual('Percentage CPU');
-        expect(data.fields[1].values.get(0)).toEqual(1558278660000);
-        expect(data.fields[0].values.get(0)).toEqual(2.2075);
-        expect(data.fields[1].values.get(1)).toEqual(1558278720000);
-        expect(data.fields[0].values.get(1)).toEqual(2.29);
+        expect(data.fields[0].values.get(0)).toEqual(1558278660000);
+        expect(data.fields[1].values.get(0)).toEqual(2.2075);
+        expect(data.fields[0].values.get(1)).toEqual(1558278720000);
+        expect(data.fields[1].values.get(1)).toEqual(2.29);
       });
     });
   });

public/app/plugins/datasource/graphite/specs/datasource.test.ts

@@ -165,7 +165,7 @@ describe('graphiteDatasource', () => {
     });
 
     it('should convert to millisecond resolution', () => {
-      expect(results.data[0].fields[0].values.get(0)).toBe(10);
+      expect(results.data[0].fields[1].values.get(0)).toBe(10);
     });
   });
 

public/app/plugins/panel/graph/specs/__snapshots__/data_processor.test.ts.snap

@@ -24,7 +24,7 @@ Array [
         1003,
       ],
     ],
-    "fieldIndex": 0,
+    "fieldIndex": 1,
     "hasMsResolution": false,
     "id": "Value",
     "label": "Value",
@@ -232,7 +232,7 @@ Array [
         1003,
       ],
     ],
-    "fieldIndex": 0,
+    "fieldIndex": 1,
     "hasMsResolution": false,
     "id": "Value",
     "label": "Value",