2 files changed, 36 insertions, 1 deletions
diff --git a/src/backend/nodes/queryjumblefuncs.c b/src/backend/nodes/queryjumblefuncs.c
index 223d1bc8262..d7fd72d70f2 100644
--- a/src/backend/nodes/queryjumblefuncs.c
+++ b/src/backend/nodes/queryjumblefuncs.c
@@ -49,6 +49,7 @@ static void AppendJumble(JumbleState *jstate,
 						 const unsigned char *item, Size size);
 static void RecordConstLocation(JumbleState *jstate, int location);
 static void _jumbleNode(JumbleState *jstate, Node *node);
+static void _jumbleA_Const(JumbleState *jstate, Node *node);
 static void _jumbleList(JumbleState *jstate, Node *node);
 static void _jumbleRangeTblEntry(JumbleState *jstate, Node *node);
 
@@ -314,6 +315,40 @@ _jumbleList(JumbleState *jstate, Node *node)
 }
 
 static void
+_jumbleA_Const(JumbleState *jstate, Node *node)
+{
+	A_Const    *expr = (A_Const *) node;
+
+	JUMBLE_FIELD(isnull);
+	if (!expr->isnull)
+	{
+		JUMBLE_FIELD(val.node.type);
+		switch (nodeTag(&expr->val))
+		{
+			case T_Integer:
+				JUMBLE_FIELD(val.ival.ival);
+				break;
+			case T_Float:
+				JUMBLE_STRING(val.fval.fval);
+				break;
+			case T_Boolean:
+				JUMBLE_FIELD(val.boolval.boolval);
+				break;
+			case T_String:
+				JUMBLE_STRING(val.sval.sval);
+				break;
+			case T_BitString:
+				JUMBLE_STRING(val.bsval.bsval);
+				break;
+			default:
+				elog(ERROR, "unrecognized node type: %d",
+					 (int) nodeTag(&expr->val));
+				break;
+		}
+	}
+}
+
+static void
 _jumbleRangeTblEntry(JumbleState *jstate, Node *node)
 {
 	RangeTblEntry *expr = (RangeTblEntry *) node;
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index 3d67787e7af..855da99ec02 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -355,7 +355,7 @@ union ValUnion
 
 typedef struct A_Const
 {
-	pg_node_attr(custom_copy_equal, custom_read_write)
+	pg_node_attr(custom_copy_equal, custom_read_write, custom_query_jumble)
 
 	NodeTag		type;
 	union ValUnion val;