diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 62fde67bd942276829baca7c86d1921ce2ed8b6a..ac4b4635b94bc61f9f8e784a564e63ebd690f56e 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -12302,6 +12302,7 @@ unreserved_keyword:
 			| SHARE
 			| SHOW
 			| SIMPLE
+			| SNAPSHOT
 			| STABLE
 			| STANDALONE_P
 			| START
@@ -12325,6 +12326,7 @@ unreserved_keyword:
 			| TRUNCATE
 			| TRUSTED
 			| TYPE_P
+			| TYPES_P
 			| UNBOUNDED
 			| UNCOMMITTED
 			| UNENCRYPTED