From 8e01f2eeebf38d53f4a86bca1cacc0e52af12531 Mon Sep 17 00:00:00 2001
From: XL_up <3066352084@qq.com>
Date: Mon, 28 Aug 2023 23:11:19 +0800
Subject: [PATCH] Update keywords.cpp

---
 src/common/backend/parser/keywords.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/common/backend/parser/keywords.cpp b/src/common/backend/parser/keywords.cpp
index 785635e25..c01845142 100644
--- a/src/common/backend/parser/keywords.cpp
+++ b/src/common/backend/parser/keywords.cpp
@@ -21,9 +21,11 @@
 
 #define PG_KEYWORD(a, b, c) {a, b, c},
 
+// A table that stores keywords information.
+// This table will be used in keyword-matching process. 
 const ScanKeyword ScanKeywords[] = {
 #include "parser/kwlist.h"
 };
 
+// The number of table items, which is also the total number of keywords
 const int NumScanKeywords = lengthof(ScanKeywords);
-