From 09cd6e59ac899fb47826f5cc4727e1e46324d1c6 Mon Sep 17 00:00:00 2001
From: wangjiaming <wangjiaming0909@sina.com>
Date: Thu, 24 Aug 2023 14:07:40 +0800
Subject: [PATCH] Revert "add doc for column comment"

---
 docs/en/12-taos-sql/03-table.md |  7 ++-----
 docs/zh/12-taos-sql/03-table.md | 12 +++---------
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/docs/en/12-taos-sql/03-table.md b/docs/en/12-taos-sql/03-table.md
index b84c17bfac..10c44848c9 100644
--- a/docs/en/12-taos-sql/03-table.md
+++ b/docs/en/12-taos-sql/03-table.md
@@ -91,15 +91,12 @@ ALTER TABLE [db_name.]tb_name alter_table_clause
 
 alter_table_clause: {
     alter_table_options
-  | ADD COLUMN col_name column_definition
+  | ADD COLUMN col_name column_type
   | DROP COLUMN col_name
-  | MODIFY COLUMN col_name column_definition
+  | MODIFY COLUMN col_name column_type
   | RENAME COLUMN old_col_name new_col_name
 }
 
-column_definition:
-    type_name [comment 'string_value']
-
 alter_table_options:
     alter_table_option ...
 
diff --git a/docs/zh/12-taos-sql/03-table.md b/docs/zh/12-taos-sql/03-table.md
index f5540aeb63..9258258263 100644
--- a/docs/zh/12-taos-sql/03-table.md
+++ b/docs/zh/12-taos-sql/03-table.md
@@ -23,10 +23,7 @@ create_subtable_clause: {
 }
 
 create_definition:
-    col_name column_definition
-
-column_definition:
-    type_name [comment 'string_value']
+    col_name column_type
 
 table_options:
     table_option ...
@@ -92,15 +89,12 @@ ALTER TABLE [db_name.]tb_name alter_table_clause
 
 alter_table_clause: {
     alter_table_options
-  | ADD COLUMN col_name column_definition
+  | ADD COLUMN col_name column_type
   | DROP COLUMN col_name
-  | MODIFY COLUMN col_name column_definition
+  | MODIFY COLUMN col_name column_type
   | RENAME COLUMN old_col_name new_col_name
 }
 
-column_definition:
-    type_name [comment 'string_value']
-
 alter_table_options:
     alter_table_option ...