nocfbot-0016-Add-raw_expression_tree_walker-coverage-for-RPR-r.txt

From 993f4423e5c4176d3a8ccb819a57192d226d9cef Mon Sep 17 00:00:00 2001
From: Henson Choi <assam258@gmail.com>
Date: Wed, 27 May 2026 07:02:38 +0900
Subject: [PATCH 16/26] Add raw_expression_tree_walker coverage for RPR raw
 nodes

WindowDef.rpCommonSyntax was not walked, and there were no case
arms for T_RPCommonSyntax or T_RPRPatternNode.  RPR core was
unaffected -- contain_rpr_walker() in parse_cte.c intercepts
WindowDef before delegating -- but debug_raw_expression_coverage_test
silently skipped these subtrees, leaving any future raw-node
omission on the RPR side undetected.
---
 src/backend/nodes/nodeFuncs.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/backend/nodes/nodeFuncs.c b/src/backend/nodes/nodeFuncs.c
index 734bb0554fe..101c03b6ae8 100644
--- a/src/backend/nodes/nodeFuncs.c
+++ b/src/backend/nodes/nodeFuncs.c
@@ -4641,6 +4641,8 @@ raw_expression_tree_walker_impl(Node *node,
 					return true;
 				if (WALK(wd->endOffset))
 					return true;
+				if (WALK(wd->rpCommonSyntax))
+					return true;
 			}
 			break;
 		case T_RangeSubselect:
@@ -4896,6 +4898,24 @@ raw_expression_tree_walker_impl(Node *node,
 					return true;
 			}
 			break;
+		case T_RPCommonSyntax:
+			{
+				RPCommonSyntax *rc = (RPCommonSyntax *) node;
+
+				if (WALK(rc->rpPattern))
+					return true;
+				if (WALK(rc->rpDefs))
+					return true;
+			}
+			break;
+		case T_RPRPatternNode:
+			{
+				RPRPatternNode *rp = (RPRPatternNode *) node;
+
+				if (WALK(rp->children))
+					return true;
+			}
+			break;
 		default:
 			elog(ERROR, "unrecognized node type: %d",
 				 (int) nodeTag(node));
-- 
2.50.1 (Apple Git-155)