Hide list of nodes in EXPLAIN (NODES off, FORMAT json)

EXPLAIN with json format was ignoring the NODES option, showing the list
of nodes every time. This commit fixes that.

diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
index 18b2404ebfdc96b64b721f9c25fcf3c7042290d5..cdc0fe8f0c73323f1f9c305920dbc37fcfe4f1f2 100644 (file)
--- a/src/backend/commands/explain.c
+++ b/src/backend/commands/explain.c
@@ -1196,7 +1196,8 @@ ExplainNode(PlanState *planstate, List *ancestors,
                                        ExplainPropertyText("Replicated",
                                                                                rsubplan->execOnAll ? "no" : "yes",
                                                                                es);
-                                       ExplainPropertyList("Node List", nodeNameList, es);
+                                       if (es->nodes)
+                                               ExplainPropertyList("Node List", nodeNameList, es);
                                }
                        }
                        break;