From abd3c1089bd43d079d87e7d4ac7baee7f7dc0439 Mon Sep 17 00:00:00 2001
From: Sait Talha Nisanci <s.talhanisanci@gmail.com>
Date: Thu, 19 Aug 2021 08:34:11 +0300
Subject: [PATCH] Use oid_hash in write state management

---
 src/backend/columnar/write_state_management.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/backend/columnar/write_state_management.c b/src/backend/columnar/write_state_management.c
index 4d815c2a0..201a1a479 100644
--- a/src/backend/columnar/write_state_management.c
+++ b/src/backend/columnar/write_state_management.c
@@ -16,6 +16,7 @@
 #include "access/tsmapi.h"
 #if PG_VERSION_NUM >= 130000
 #include "access/heaptoast.h"
+#include "common/hashfn.h"
 #else
 #include "access/tuptoaster.h"
 #endif
@@ -132,9 +133,10 @@ columnar_init_write_state(Relation relation, TupleDesc tupdesc,
 				"Column Store Write State Management Context",
 				ALLOCSET_DEFAULT_SIZES);
 		HASHCTL info;
-		uint32 hashFlags = (HASH_ELEM | HASH_STRINGS | HASH_CONTEXT);
+		uint32 hashFlags = (HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT);
 		memset(&info, 0, sizeof(info));
 		info.keysize = sizeof(Oid);
+		info.hash = oid_hash;
 		info.entrysize = sizeof(WriteStateMapEntry);
 		info.hcxt = WriteStateContext;