From 94fb07b1734f4dc1f348736a2ba565b1e932d6ad Mon Sep 17 00:00:00 2001
From: Yugo Nagata <nagata@sraoss.co.jp>
Date: Fri, 1 Apr 2022 10:27:45 +0900
Subject: [PATCH] Update README.md

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index f9479cd..8c7c524 100644
--- a/README.md
+++ b/README.md
@@ -189,3 +189,8 @@ IVM Development Group
 
 ## License
 [PostgreSQL License](https://github.com/sraoss/pg_ivm/blob/main/LICENSE)
+
+## Copyright
+- Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+- Portions Copyright (c) 2022, IVM Development Group
+