Make some small planner API cleanups.

[postgresql] / src / backend / executor / nodeAppend.c

diff --git a/src/backend/executor/nodeAppend.c b/src/backend/executor/nodeAppend.c
index 94a17c7c67c530660ac7b19e8c08b1c27b1a34f2..f3be2429dbeb122d186e941d26b2094982441bdc 100644 (file)
--- a/src/backend/executor/nodeAppend.c
+++ b/src/backend/executor/nodeAppend.c
@@ -3,7 +3,7 @@
  * nodeAppend.c
  *       routines to handle append nodes.
  *
- * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
@@ -196,7 +196,11 @@ ExecInitAppend(Append *node, EState *estate, int eflags)
        /*
         * Initialize result tuple type and slot.
         */
-       ExecInitResultTupleSlotTL(&appendstate->ps);
+       ExecInitResultTupleSlotTL(&appendstate->ps, &TTSOpsVirtual);
+
+       /* node returns slots from each of its subnodes, therefore not fixed */
+       appendstate->ps.resultopsset = true;
+       appendstate->ps.resultopsfixed = false;
 
        appendplanstates = (PlanState **) palloc(nplans *
                                                                                         sizeof(PlanState *));