diff --git a/docs/en/docs/sql-manual/sql-functions/array-functions/array_join.md b/docs/en/docs/sql-manual/sql-functions/array-functions/array_join.md
index 3489fd0708..f261675f42 100644
--- a/docs/en/docs/sql-manual/sql-functions/array-functions/array_join.md
+++ b/docs/en/docs/sql-manual/sql-functions/array-functions/array_join.md
@@ -57,7 +57,7 @@ If null_replace is an empty string or not specified, the NULL elements in the ar
 ```
 mysql> set enable_vectorized_engine=true;
 
-mysql> select k1, k2, array_join(k1, '_', 'null') from array_test order by k1;
+mysql> select k1, k2, array_join(k2, '_', 'null') from array_test order by k1;
 +------+-----------------------------+------------------------------------+
 | k1   | k2                          | array_join(`k2`, '_', 'null')      |
 +------+-----------------------------+------------------------------------+
diff --git a/docs/en/docs/sql-manual/sql-functions/array-functions/array_sort.md b/docs/en/docs/sql-manual/sql-functions/array-functions/array_sort.md
index c2c6ec259f..2047bfe040 100644
--- a/docs/en/docs/sql-manual/sql-functions/array-functions/array_sort.md
+++ b/docs/en/docs/sql-manual/sql-functions/array-functions/array_sort.md
@@ -49,7 +49,7 @@ If the element of array is NULL, it will be placed in the front of the sorted ar
 
 ```
 mysql> set enable_vectorized_engine=true;
-mysql> select k1, k2, array_sort(k2) array_test;
+mysql> select k1, k2, array_sort(k2) from array_test;
 +------+-----------------------------+-----------------------------+
 | k1   | k2                          | array_sort(`k2`)            |
 +------+-----------------------------+-----------------------------+
diff --git a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_difference.md b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_difference.md
index 4f5f2877bf..6f373d4b72 100644
--- a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_difference.md
+++ b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_difference.md
@@ -40,7 +40,7 @@ array_difference
 ARRAY<T> array_difference(ARRAY<T> arr)
 ```
 
-计算相邻数组元素之间的差异。返回一个数组，其中第一个元素将为0，第二个元素是[1]-a[0]之间的差值。
+计算相邻数组元素之间的差异。返回一个数组，其中第一个元素将为0，第二个元素是a[1]-a[0]之间的差值。
 注意若 NULL 值存在，返回结果为NULL
 
 ### notice
diff --git a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_join.md b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_join.md
index 7e51f689e3..0d874dc72f 100644
--- a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_join.md
+++ b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_join.md
@@ -56,7 +56,7 @@ VARCHAR array_join(ARRAY<T> arr, VARCHAR sep[, VARCHAR null_replace])
 
 mysql> set enable_vectorized_engine=true;
 
-mysql> select k1, k2, array_join(k1, '_', 'null') from array_test order by k1;
+mysql> select k1, k2, array_join(k2, '_', 'null') from array_test order by k1;
 +------+-----------------------------+------------------------------------+
 | k1   | k2                          | array_join(`k2`, '_', 'null')      |
 +------+-----------------------------+------------------------------------+
diff --git a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_sort.md b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_sort.md
index fc0c2f282a..f09f954f8b 100644
--- a/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_sort.md
+++ b/docs/zh-CN/docs/sql-manual/sql-functions/array-functions/array_sort.md
@@ -49,7 +49,7 @@ ARRAY<T> array_sort(ARRAY<T> arr)
 
 ```
 mysql> set enable_vectorized_engine=true;
-mysql> select k1, k2, array_sort(k2) array_test;
+mysql> select k1, k2, array_sort(k2) from array_test;
 +------+-----------------------------+-----------------------------+
 | k1   | k2                          | array_sort(`k2`)            |
 +------+-----------------------------+-----------------------------+
@@ -81,4 +81,4 @@ mysql> select k1, k2, array_sort(k2) from array_test01;
 
 ### keywords
 
-ARRAY, SORT, ARRAY_SORT
\ No newline at end of file
+ARRAY, SORT, ARRAY_SORT