From 54c8275c0ddf08c0ff1c3b3b5e34028dd4353b5f Mon Sep 17 00:00:00 2001
From: "max.zhu@vesoft.com" <86282370+izhuxiaoqing@users.noreply.github.com>
Date: Mon, 13 Sep 2021 17:46:15 +0800
Subject: [PATCH 1/2] Update 13.concat.md

---
 .../3.ngql-guide/6.functions-and-expressions/13.concat.md     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md b/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
index 7be8e392f96..5e9e2a80e1a 100644
--- a/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
+++ b/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
@@ -2,6 +2,10 @@
 
 The `concat()` and `concat_ws()` functions return strings concatenated by one or more strings.
 
+!!! enterpriseonly
+
+    This feature is supported by the enterprise edition only.
+
 ## concat() function
 
 The `concat()` function requires at least two or more strings. All the parameters are concatenated into one string.

From 00bbb57a6fda4c1707e8322b52e35af76311dddf Mon Sep 17 00:00:00 2001
From: "max.zhu@vesoft.com" <86282370+izhuxiaoqing@users.noreply.github.com>
Date: Tue, 14 Sep 2021 14:27:28 +0800
Subject: [PATCH 2/2] Update 13.concat.md

---
 docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md b/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
index 5e9e2a80e1a..4096589577c 100644
--- a/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
+++ b/docs-2.0/3.ngql-guide/6.functions-and-expressions/13.concat.md
@@ -4,7 +4,7 @@ The `concat()` and `concat_ws()` functions return strings concatenated by one or
 
 !!! enterpriseonly
 
-    This feature is supported by the enterprise edition only.
+    This feature is supported by the Enterprise Edition only.
 
 ## concat() function