Add operation_name to apollo_router_query_planning_time metric

apollo-router/src/query_planner/bridge_query_planner.rs

@@ -529,6 +529,7 @@ impl Service<QueryPlannerRequest> for BridgeQueryPlanner {
                 Some(d) => d.clone(),
             };
 
+            let executable_operation;
             let schema = &this.schema.api_schema().definitions;
             match add_defer_labels(schema, &doc.ast) {
                 Err(e) => {
@@ -541,6 +542,9 @@ impl Service<QueryPlannerRequest> for BridgeQueryPlanner {
                         .to_executable(schema)
                         // Assume transformation creates a valid document: ignore conversion errors
                         .unwrap_or_else(|invalid| invalid.partial);
+                    executable_operation = executable.get_operation(operation_name.as_deref()).ok()
+                        .map(|op| op.name.clone().map(|n| n))
+                        .flatten();
                     doc = Arc::new(ParsedDocumentInner {
                         executable,
                         ast: modified_query,
@@ -569,7 +573,9 @@ impl Service<QueryPlannerRequest> for BridgeQueryPlanner {
                 )
                 .await;
             let duration = start.elapsed().as_secs_f64();
-            tracing::info!(histogram.apollo_router_query_planning_time = duration);
+            tracing::info!(histogram.apollo_router_query_planning_time = duration,
+                operation_name = executable_operation.map(|n| n.to_string()).unwrap_or_else(|| "anonymous".to_string())
+            );
 
             match res {
                 Ok(query_planner_content) => Ok(QueryPlannerResponse::builder()