From 9aea377ce5645a881f82cef0768d043be6f63335 Mon Sep 17 00:00:00 2001
From: Teja Mupparti <temuppar@microsoft.com>
Date: Mon, 21 Nov 2022 16:58:06 -0800
Subject: [PATCH] Fix the dangling pointer bug in get_merged_argument_list()

(cherry picked from commit edaf88e0ff43eb88d8517a9e5538f6052eda92c6)
---
 src/backend/distributed/deparser/ruleutils_14.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backend/distributed/deparser/ruleutils_14.c b/src/backend/distributed/deparser/ruleutils_14.c
index bde8e1b23..d1c43d110 100644
--- a/src/backend/distributed/deparser/ruleutils_14.c
+++ b/src/backend/distributed/deparser/ruleutils_14.c
@@ -482,7 +482,7 @@ get_merged_argument_list(CallStmt *stmt, List **mergedNamedArgList,
 	Oid  functionOid = stmt->funcexpr->funcid;
 	List *namedArgList = NIL;
 	List *finalArgumentList = NIL;
-	Oid  finalArgTypes[FUNC_MAX_ARGS];
+	Oid  *finalArgTypes;
 	Oid  *argTypes = NULL;
 	char *argModes = NULL;
 	char **argNames = NULL;
@@ -519,6 +519,7 @@ get_merged_argument_list(CallStmt *stmt, List **mergedNamedArgList,
 
 	/* Remove the duplicate INOUT counting */
 	numberOfArgs = numberOfArgs - totalInoutArgs;
+	finalArgTypes = palloc0(sizeof(Oid) * numberOfArgs);
 
 	ListCell *inArgCell = list_head(stmt->funcexpr->args);
 	ListCell *outArgCell = list_head(stmt->outargs);