diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
index f5fdba5f6f865..c55be62353fd5 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
@@ -30,16 +30,18 @@ ARRAY_SIZE(<arr>)
 
 返回数组中元素数量，如果输入数组为 NULL，则返回 NULL
 
+
+
 ## 举例
 
 ```sql
-SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE([NULL]),ARRAY_SIZE([]);
+SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE(NULL),ARRAY_SIZE([]);
 ```
 
 ```text
 +------------------------------+---------------------+-----------------+
-| cardinality(['a', 'b', 'c']) | cardinality([NULL]) | cardinality([]) |
+| cardinality(['a', 'b', 'c']) | cardinality(NULL)   | cardinality([]) |
 +------------------------------+---------------------+-----------------+
-|                            3 |                   1 |               0 |
+|                            3 |         NULL        |               0 |
 +------------------------------+---------------------+-----------------+
 ```
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
index f5fdba5f6f865..786dde0c85fef 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
@@ -33,13 +33,13 @@ ARRAY_SIZE(<arr>)
 ## 举例
 
 ```sql
-SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE([NULL]),ARRAY_SIZE([]);
+SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE(NULL),ARRAY_SIZE([]);
 ```
 
 ```text
 +------------------------------+---------------------+-----------------+
-| cardinality(['a', 'b', 'c']) | cardinality([NULL]) | cardinality([]) |
+| cardinality(['a', 'b', 'c']) | cardinality(NULL)   | cardinality([]) |
 +------------------------------+---------------------+-----------------+
-|                            3 |                   1 |               0 |
+|                            3 |                NULL |               0 |
 +------------------------------+---------------------+-----------------+
 ```
diff --git a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
index 02d67e45b144e..33187cb154eb3 100644
--- a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
+++ b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
@@ -40,6 +40,6 @@ SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE([NULL]),ARRAY_SIZE([]);
 +------------------------------+---------------------+-----------------+
 | cardinality(['a', 'b', 'c']) | cardinality([NULL]) | cardinality([]) |
 +------------------------------+---------------------+-----------------+
-|                            3 |                   1 |               0 |
+|                            3 |                NULL |               0 |
 +------------------------------+---------------------+-----------------+
 ```
diff --git a/versioned_docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md b/versioned_docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
index 02d67e45b144e..91b33abe9ff6e 100644
--- a/versioned_docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
+++ b/versioned_docs/version-3.x/sql-manual/sql-functions/scalar-functions/array-functions/array-size.md
@@ -33,13 +33,13 @@ Returns the number of elements in the array. If the input array is NULL, it retu
 ## Example
 
 ```sql
-SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE([NULL]),ARRAY_SIZE([]);
+SELECT ARRAY_SIZE(['a', 'b', 'c']),ARRAY_SIZE(NULL),ARRAY_SIZE([]);
 ```
 
 ```text
 +------------------------------+---------------------+-----------------+
-| cardinality(['a', 'b', 'c']) | cardinality([NULL]) | cardinality([]) |
+| cardinality(['a', 'b', 'c']) | cardinality(NULL)   | cardinality([]) |
 +------------------------------+---------------------+-----------------+
-|                            3 |                   1 |               0 |
+|                            3 |                NULL |               0 |
 +------------------------------+---------------------+-----------------+
 ```