Fix: Top table rendering and update docs (#64497)

Fix flame graph in test data and update docs

docs/sources/datasources/testdata/_index.md

@@ -60,6 +60,7 @@ You can assign an **Alias** to each scenario, and many have their own options th
 - **CSV Metric Values**
 - **Datapoints Outside Range**
 - **Exponential heatmap bucket data**
+- **Flame Graph**
 - **Grafana API**
 - **Grafana Live**
 - **Linear heatmap bucket data**
@@ -77,6 +78,7 @@ You can assign an **Alias** to each scenario, and many have their own options th
 - **Slow Query**
 - **Streaming Client**
 - **Table Static**
+- **Trace**
 - **USA generated data**
 
 ## Import a pre-configured dashboard

public/app/plugins/panel/flamegraph/components/TopTable/FlameGraphTopTableContainer.tsx

@@ -45,7 +45,7 @@ const FlameGraphTopTableContainer = ({
     let label, self, value;
     let table: { [key: string]: TableData } = {};
 
-    if (data.fields.length === 6) {
+    if (data.fields.length > 3) {
       const valueValues = data.fields[1].values;
       const selfValues = data.fields[2].values;
       const labelValues = data.fields[3].values;