0001-support-incremental-sort-in-outnode.patch

From f71952891e41e8d1a65085910d3d488148dbaa9a Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Mon, 30 Nov 2020 04:14:12 -0500
Subject: [PATCH] support incremental sort in outnode()

---
 src/backend/nodes/outfuncs.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c
index bd5694d..82fafc3 100644
--- a/src/backend/nodes/outfuncs.c
+++ b/src/backend/nodes/outfuncs.c
@@ -1955,13 +1955,29 @@ _outProjectSetPath(StringInfo str, const ProjectSetPath *node)
 }
 
 static void
+_outSortPathInfo(StringInfo str, const SortPath *node)
+{
+	_outPathInfo(str, (const Path *) node);
+
+	WRITE_NODE_FIELD(subpath);
+}
+
+static void
 _outSortPath(StringInfo str, const SortPath *node)
 {
 	WRITE_NODE_TYPE("SORTPATH");
 
-	_outPathInfo(str, (const Path *) node);
+	_outSortPathInfo(str, node);
+}
 
-	WRITE_NODE_FIELD(subpath);
+static void
+_outIncrementalSortPath(StringInfo str, const IncrementalSortPath *node)
+{
+	WRITE_NODE_TYPE("INCREMENTALSORTPATH");
+
+	_outSortPathInfo(str, (const SortPath *) node);
+
+	WRITE_INT_FIELD(nPresortedCols);
 }
 
 static void
@@ -4055,6 +4071,9 @@ outNode(StringInfo str, const void *obj)
 			case T_SortPath:
 				_outSortPath(str, obj);
 				break;
+			case T_IncrementalSortPath:
+				_outIncrementalSortPath(str, obj);
+				break;
 			case T_GroupPath:
 				_outGroupPath(str, obj);
 				break;
-- 
1.8.3.1