1 files changed, 11 insertions, 0 deletions
diff --git a/src/mongo/db/query/explain.h b/src/mongo/db/query/explain.h
index ea57c48eef3..da9d3daff21 100644
--- a/src/mongo/db/query/explain.h
+++ b/src/mongo/db/query/explain.h
@@ -34,6 +34,7 @@
 #include "mongo/db/query/plan_executor.h"
 #include "mongo/db/query/query_planner_params.h"
 #include "mongo/db/query/query_solution.h"
+#include "mongo/db/query/type_explain.h"
 
 namespace mongo {
 
@@ -146,6 +147,16 @@ namespace mongo {
          */
         static void explainCountEmptyQuery(BSONObjBuilder* out);
 
+        /**
+         * Generate the legacy explain format from a PlanExecutor.
+         *
+         * On success, the caller owns 'explain'.
+         *
+         * TODO: THIS IS TEMPORARY. Once the legacy explain code is deleted, we won't
+         * need this anymore.
+         */
+        static Status legacyExplain(PlanExecutor* exec, TypeExplain** explain);
+
     private:
         /**
          * Converts the stats tree 'stats' into a corresponding BSON object containing