(doris-website) branch master updated: Fix hll function (#1913)

kassiez Thu, 23 Jan 2025 23:03:32 -0800

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kassiez pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/doris-website.git



The following commit(s) were added to refs/heads/master by this push:
     new f3e8b2cd277 Fix hll function (#1913)
f3e8b2cd277 is described below

commit f3e8b2cd2773b445c359d98705465b757170b3d6
Author: echo-dundun <50286010+echo-...@users.noreply.github.com>
AuthorDate: Fri Jan 24 15:03:22 2025 +0800

    Fix hll function (#1913)
    
    ## Versions
    
    - [x] dev
    - [x] 3.0
    - [x] 2.1
    - [x] 2.0
    
    ## Languages
    
    - [x] Chinese
    - [x] English
    
    ## Docs Checklist
    
    - [ ] Checked by AI
    - [ ] Test Cases Built
---
 .../hll-functions/hll-cardinality.md               | 34 +++++++----
 .../scalar-functions/hll-functions/hll-empty.md    | 28 +++++----
 .../hll-functions/hll-from-base64.md               | 54 +++++++++++------
 .../scalar-functions/hll-functions/hll-hash.md     | 29 ++++++----
 .../hll-functions/hll-to-base64.md                 | 64 ++++++++++++++-------
 .../hll-functions/hll-cardinality.md               | 28 ++++++---
 .../scalar-functions/hll-functions/hll-empty.md    | 22 ++++---
 .../hll-functions/hll-from-base64.md               | 67 +++++++++++-----------
 .../scalar-functions/hll-functions/hll-hash.md     | 31 +++++++---
 .../hll-functions/hll-to-base64.md                 | 60 +++++++++++++------
 .../sql-functions/hll-functions/hll-empty.md       | 22 ++++---
 .../sql-functions/hll-functions/hll-hash.md        | 31 +++++++---
 .../sql-functions/hll-functions/hll-cardinality.md | 28 ++++++---
 .../sql-functions/hll-functions/hll-empty.md       | 22 ++++---
 .../sql-functions/hll-functions/hll-hash.md        | 31 +++++++---
 .../hll-functions/hll-cardinality.md               | 28 ++++++---
 .../scalar-functions/hll-functions/hll-empty.md    | 22 ++++---
 .../hll-functions/hll-from-base64.md               | 67 +++++++++++-----------
 .../scalar-functions/hll-functions/hll-hash.md     | 31 +++++++---
 .../hll-functions/hll-to-base64.md                 | 60 +++++++++++++------
 .../hll-functions/hll-cardinality.md               | 28 ++++++---
 .../scalar-functions/hll-functions/hll-empty.md    | 22 ++++---
 .../hll-functions/hll-from-base64.md               | 67 +++++++++++-----------
 .../scalar-functions/hll-functions/hll-hash.md     | 31 +++++++---
 .../hll-functions/hll-to-base64.md                 | 60 +++++++++++++------
 .../sql-functions/hll-functions/hll-empty.md       | 28 +++++----
 .../sql-functions/hll-functions/hll-hash.md        | 29 ++++++----
 .../sql-functions/hll-functions/hll-cardinality.md | 34 +++++++----
 .../sql-functions/hll-functions/hll-empty.md       | 28 +++++----
 .../sql-functions/hll-functions/hll-hash.md        | 29 ++++++----
 .../hll-functions/hll-cardinality.md               | 34 +++++++----
 .../scalar-functions/hll-functions/hll-empty.md    | 28 +++++----
 .../hll-functions/hll-from-base64.md               | 54 +++++++++++------
 .../scalar-functions/hll-functions/hll-hash.md     | 29 ++++++----
 .../hll-functions/hll-to-base64.md                 | 66 ++++++++++++++-------
 .../hll-functions/hll-cardinality.md               | 34 +++++++----
 .../scalar-functions/hll-functions/hll-empty.md    | 28 +++++----
 .../hll-functions/hll-from-base64.md               | 54 +++++++++++------
 .../scalar-functions/hll-functions/hll-hash.md     | 29 ++++++----
 .../hll-functions/hll-to-base64.md                 | 66 ++++++++++++++-------
 40 files changed, 1032 insertions(+), 505 deletions(-)

diff --git 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index db1b7437ca3..f45b54272cd 100644
--- 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
-### description
-#### Syntax
+## Description
 
-`HLL_CARDINALITY(hll)`
+`HLL_CARDINALITY` calculates the cardinality of a HyperLogLog (HLL) type 
value. It is an approximate counting algorithm suitable for estimating the 
number of distinct elements in large datasets.
 
-HLL_CARDINALITY is used to calculate the cardinality of a single HLL type 
value.
+## Syntax
 
-### example
+```sql
+HLL_CARDINALITY(<hll>)
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+## Parameters
+
+| Parameter  | Description                                              |
+| ---------- | -------------------------------------------------------- |
+| `<hll>`    | The HLL type value representing the dataset whose cardinality 
needs to be estimated. |
+
+## Return Value
+
+Returns the estimated cardinality of the HLL type value, representing the 
number of distinct elements in the dataset.
+
+## Example
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
+```
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 776a7c3722e..75cc2b34805 100644
--- a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
-### description
-#### Syntax
+## Description
 
-`HLL_EMPTY(value)`
+`HLL_EMPTY` returns an empty HLL (HyperLogLog) value, representing a data set 
with no elements.
 
-HLL_EMPTY returns a null value of type hll.
+## Syntax
 
-### example
+```sql
+HLL_EMPTY()
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+## Return Value
+
+Returns an empty HLL type value, representing a data set with no elements.
+
+## Example
+
+```sql
+select hll_cardinality(hll_empty());
+```
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index c0efeb46449..8a25e148373 100644
--- 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,50 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
+## Description
 
-### description
-#### Syntax
+Converts a base64-encoded string (usually the result of the `HLL_TO_BASE64` 
function) into an HLL. If the input string is invalid or NULL, the function 
returns NULL.
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+## Syntax
 
-Convert a base64 string(result of function `hll_to_base64`) into a hll. If 
input string is invalid, return NULL.
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## Parameters
 
-### example
+| Parameter | Description                                                      
           |
+| --------- | 
--------------------------------------------------------------------------- |
+| `<input>` | A base64-encoded string, typically generated by the 
`HLL_TO_BASE64` function. If the input string is invalid or NULL, the function 
returns NULL. |
 
+## Examples
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
+
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
+
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-### keywords
-HLL_FROM_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b174e6236e8..d2df2cd4016 100644
--- a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,23 +24,32 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
-### description
-#### Syntax
+## Description
 
-`HLL_HASH(value)`
+Converts a given value to the HLL (HyperLogLog) type. This function is 
typically used during data loading to create an HLL from raw data.
 
-HLL_HASH converts a value to hll type. 
-Typically used when loading data.
+## Syntax
 
-### example
+```sql
+HLL_HASH(<value>)
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+## Parameters
+
+| Parameter | Description                                                   |
+|-----------|---------------------------------------------------------------|
+| `<value>` | The value to be converted to HLL type. This can be a string, 
number, or any data type. |
+
+## Examples
+
+```sql
+SELECT HLL_CARDINALITY(HLL_HASH('abc'));
+```
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
 ```
-### keywords
-HLL,HLL_HASH
diff --git 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index 6da0051d84c..5b8d885370d 100644
--- 
a/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/docs/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -1,8 +1,10 @@
 ---
+
 {
     "title": "HLL_TO_BASE64",
     "language": "en"
 }
+
 ---
 
 <!-- 
@@ -22,58 +24,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
+## Description
+
+Converts an input HLL to a base64-encoded string. If the input is `<null>`, 
the function returns `<null>`.
 
-### description
-#### Syntax
+## Syntax
+
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+## Parameters
 
-Convert an input hll to a base64 string. If input is NULL, return NULL.
+| Parameter    | Description                                          |
+| ------------ | ---------------------------------------------------- |
+| `<hll_input>` | The HyperLogLog (HLL) data to be converted to a 
base64-encoded string. If the input is `<null>`, the function returns `<null>`. 
|
 
-### example
+## Examples
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index 76390c4f53c..fe065be3191 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
 ## 描述
+
+`HLL_CARDINALITY` 用于计算 HLL（HyperLogLog）类型值的基数。HLL 是一种近似计数的算法，适用于大规模数据集的基数估算。
+
 ## 语法
 
-`HLL_CARDINALITY(hll)`
+```sql
+HLL_CARDINALITY(<hll>)
+```
+
+## 参数
+
+| 参数  | 说明                                   |
+| ---- | -------------------------------------- |
+| `<hll>` | HLL 类型的值，表示需要计算基数的数据集合。 |
 
-HLL_CARDINALITY 用于计算 HLL 类型值的基数。
+## 返回值
+
+返回 HLL 类型值的基数，即数据集合中不重复元素的估算数。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 340d4ebe2de..760b736a248 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
 ## 描述
+
+`HLL_EMPTY` 用于返回一个 HLL（HyperLogLog）类型的空值，表示一个没有任何元素的数据集合。
+
 ## 语法
 
-`HLL_EMPTY(value)`
+```sql
+HLL_EMPTY()
+```
+
+## 返回值
 
-HLL_EMPTY 返回一个 hll 类型的空值。
+返回一个 HLL 类型的空值，表示一个没有任何元素的数据集合。
 
 ## 举例
+
+```sql
+select hll_cardinality(hll_empty());
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index 3a7e2a7bb9c..aef2b28fbfb 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,65 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
-
 ## 描述
+
+将一个 base64 编码的字符串（通常由 `HLL_TO_BASE64` 函数生成）转换为 HLL 类型。如果输入字符串不合法或为 NULL，则返回 
NULL。
+
 ## 语法
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## 参数
 
-将一个base64字符串(`hll_to_base64`函数的结果)转化为一个HLL。当输入字符串不合法时，返回NULL。
+| 参数     | 说明                                                                  
   |
+| -------- | 
------------------------------------------------------------------------ |
+| `<input>` | base64 编码的字符串，通常由 `HLL_TO_BASE64` 函数生成。如果字符串不合法，则返回 NULL。 |
 
-## 举例
+## 示例
 
-#### 查询示例
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-#### 数据导入示例：
-```
-前置条件：
-1. 在 Hive 中已经创建好一个名为 hive_test.hive_hll_table 的 Hive 表（格式为 textfile ，字段为：`k1` 
int, `k2` String, `k3` String, `uuid` binary），并且已经基于普通表使用 to_hll 的UDF函数往该表插入数据。
-
-2. 在 Doris 中创建名为 hive 的 Catalog 用来连接。
-
-3. 创建好 Doris 内表，名为 doris_hll_table，字段有：`k1` int, `k2` varchar(10), `k3` 
varchar(10), `uuid` HLL HLL_UNION。
-
-那么，此时可以使用 hll_from_base64 函数从 Hive 插入数据到 Doris 中：
-insert into doris_hll_table select k1, k2, k3, hll_from_base64(uuid) from 
hive.hive_test.hive_hll_table;
-```
-更多导入细节可以参考：[Hive HLL UDF](../../../ecosystem/hive-hll-udf.md)
-
-### keywords
-HLL_FROM_BASE64,HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b7564691945..4a7337ee415 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,22 +24,39 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
 ## 描述
+
+将一个值转换为 HLL（HyperLogLog）类型。该函数通常用于数据加载时，将普通类型的值转换为 HLL 类型，常用于处理大数据集的去重和计数操作。
+
+特殊情况：
+- 如果输入值为 NULL，则返回 NULL。
+
 ## 语法
 
-`HLL_HASH(value)`
+```sql
+HLL_HASH(<value>)
+```
+
+## 参数
 
-HLL_HASH 将一个值转换为 hll 类型。通常用于导入数据时，将普通类型的值导入到 hll 列中。
+| 参数     | 说明                                                   |
+| -------- | ------------------------------------------------------ |
+| `<value>` | 需要转换为 HLL 类型的值。可以是字符串、数字或任意数据类型。 |
+
+## 返回值
+
+返回一个 HLL 类型的值。返回结果类型为 HLL。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(HLL_HASH('abc'));
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
-```
-### keywords
-HLL,HLL_HASH
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index dbcb1254c03..a8d786c0268 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -22,58 +22,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
-
 ## 描述
+
+将一个 HLL 类型转换为一个 base64 编码的字符串。如果输入为 NULL，则返回 NULL。
+
 ## 语法
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
+
+## 参数
 
-将一个hll转化成一个base64字符串。输入是NULL的话返回NULL。
+| 参数        | 说明                                     |
+| ----------- | ---------------------------------------- |
+| `<hll_input>` | HLL 类型数据，如果输入为 NULL，则返回 NULL。 |
 
-## 举例
+## 示例
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
index 340d4ebe2de..760b736a248 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
 ## 描述
+
+`HLL_EMPTY` 用于返回一个 HLL（HyperLogLog）类型的空值，表示一个没有任何元素的数据集合。
+
 ## 语法
 
-`HLL_EMPTY(value)`
+```sql
+HLL_EMPTY()
+```
+
+## 返回值
 
-HLL_EMPTY 返回一个 hll 类型的空值。
+返回一个 HLL 类型的空值，表示一个没有任何元素的数据集合。
 
 ## 举例
+
+```sql
+select hll_cardinality(hll_empty());
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
index b7564691945..4a7337ee415 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
@@ -24,22 +24,39 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
 ## 描述
+
+将一个值转换为 HLL（HyperLogLog）类型。该函数通常用于数据加载时，将普通类型的值转换为 HLL 类型，常用于处理大数据集的去重和计数操作。
+
+特殊情况：
+- 如果输入值为 NULL，则返回 NULL。
+
 ## 语法
 
-`HLL_HASH(value)`
+```sql
+HLL_HASH(<value>)
+```
+
+## 参数
 
-HLL_HASH 将一个值转换为 hll 类型。通常用于导入数据时，将普通类型的值导入到 hll 列中。
+| 参数     | 说明                                                   |
+| -------- | ------------------------------------------------------ |
+| `<value>` | 需要转换为 HLL 类型的值。可以是字符串、数字或任意数据类型。 |
+
+## 返回值
+
+返回一个 HLL 类型的值。返回结果类型为 HLL。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(HLL_HASH('abc'));
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
-```
-### keywords
-HLL,HLL_HASH
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
index 76390c4f53c..fe065be3191 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
 ## 描述
+
+`HLL_CARDINALITY` 用于计算 HLL（HyperLogLog）类型值的基数。HLL 是一种近似计数的算法，适用于大规模数据集的基数估算。
+
 ## 语法
 
-`HLL_CARDINALITY(hll)`
+```sql
+HLL_CARDINALITY(<hll>)
+```
+
+## 参数
+
+| 参数  | 说明                                   |
+| ---- | -------------------------------------- |
+| `<hll>` | HLL 类型的值，表示需要计算基数的数据集合。 |
 
-HLL_CARDINALITY 用于计算 HLL 类型值的基数。
+## 返回值
+
+返回 HLL 类型值的基数，即数据集合中不重复元素的估算数。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
index 340d4ebe2de..760b736a248 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
 ## 描述
+
+`HLL_EMPTY` 用于返回一个 HLL（HyperLogLog）类型的空值，表示一个没有任何元素的数据集合。
+
 ## 语法
 
-`HLL_EMPTY(value)`
+```sql
+HLL_EMPTY()
+```
+
+## 返回值
 
-HLL_EMPTY 返回一个 hll 类型的空值。
+返回一个 HLL 类型的空值，表示一个没有任何元素的数据集合。
 
 ## 举例
+
+```sql
+select hll_cardinality(hll_empty());
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
index b7564691945..4a7337ee415 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
@@ -24,22 +24,39 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
 ## 描述
+
+将一个值转换为 HLL（HyperLogLog）类型。该函数通常用于数据加载时，将普通类型的值转换为 HLL 类型，常用于处理大数据集的去重和计数操作。
+
+特殊情况：
+- 如果输入值为 NULL，则返回 NULL。
+
 ## 语法
 
-`HLL_HASH(value)`
+```sql
+HLL_HASH(<value>)
+```
+
+## 参数
 
-HLL_HASH 将一个值转换为 hll 类型。通常用于导入数据时，将普通类型的值导入到 hll 列中。
+| 参数     | 说明                                                   |
+| -------- | ------------------------------------------------------ |
+| `<value>` | 需要转换为 HLL 类型的值。可以是字符串、数字或任意数据类型。 |
+
+## 返回值
+
+返回一个 HLL 类型的值。返回结果类型为 HLL。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(HLL_HASH('abc'));
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
-```
-### keywords
-HLL,HLL_HASH
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index 76390c4f53c..fe065be3191 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
 ## 描述
+
+`HLL_CARDINALITY` 用于计算 HLL（HyperLogLog）类型值的基数。HLL 是一种近似计数的算法，适用于大规模数据集的基数估算。
+
 ## 语法
 
-`HLL_CARDINALITY(hll)`
+```sql
+HLL_CARDINALITY(<hll>)
+```
+
+## 参数
+
+| 参数  | 说明                                   |
+| ---- | -------------------------------------- |
+| `<hll>` | HLL 类型的值，表示需要计算基数的数据集合。 |
 
-HLL_CARDINALITY 用于计算 HLL 类型值的基数。
+## 返回值
+
+返回 HLL 类型值的基数，即数据集合中不重复元素的估算数。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 340d4ebe2de..760b736a248 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
 ## 描述
+
+`HLL_EMPTY` 用于返回一个 HLL（HyperLogLog）类型的空值，表示一个没有任何元素的数据集合。
+
 ## 语法
 
-`HLL_EMPTY(value)`
+```sql
+HLL_EMPTY()
+```
+
+## 返回值
 
-HLL_EMPTY 返回一个 hll 类型的空值。
+返回一个 HLL 类型的空值，表示一个没有任何元素的数据集合。
 
 ## 举例
+
+```sql
+select hll_cardinality(hll_empty());
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index 3a7e2a7bb9c..aef2b28fbfb 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,65 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
-
 ## 描述
+
+将一个 base64 编码的字符串（通常由 `HLL_TO_BASE64` 函数生成）转换为 HLL 类型。如果输入字符串不合法或为 NULL，则返回 
NULL。
+
 ## 语法
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## 参数
 
-将一个base64字符串(`hll_to_base64`函数的结果)转化为一个HLL。当输入字符串不合法时，返回NULL。
+| 参数     | 说明                                                                  
   |
+| -------- | 
------------------------------------------------------------------------ |
+| `<input>` | base64 编码的字符串，通常由 `HLL_TO_BASE64` 函数生成。如果字符串不合法，则返回 NULL。 |
 
-## 举例
+## 示例
 
-#### 查询示例
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-#### 数据导入示例：
-```
-前置条件：
-1. 在 Hive 中已经创建好一个名为 hive_test.hive_hll_table 的 Hive 表（格式为 textfile ，字段为：`k1` 
int, `k2` String, `k3` String, `uuid` binary），并且已经基于普通表使用 to_hll 的UDF函数往该表插入数据。
-
-2. 在 Doris 中创建名为 hive 的 Catalog 用来连接。
-
-3. 创建好 Doris 内表，名为 doris_hll_table，字段有：`k1` int, `k2` varchar(10), `k3` 
varchar(10), `uuid` HLL HLL_UNION。
-
-那么，此时可以使用 hll_from_base64 函数从 Hive 插入数据到 Doris 中：
-insert into doris_hll_table select k1, k2, k3, hll_from_base64(uuid) from 
hive.hive_test.hive_hll_table;
-```
-更多导入细节可以参考：[Hive HLL UDF](../../../ecosystem/hive-hll-udf.md)
-
-### keywords
-HLL_FROM_BASE64,HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b7564691945..4a7337ee415 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,22 +24,39 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
 ## 描述
+
+将一个值转换为 HLL（HyperLogLog）类型。该函数通常用于数据加载时，将普通类型的值转换为 HLL 类型，常用于处理大数据集的去重和计数操作。
+
+特殊情况：
+- 如果输入值为 NULL，则返回 NULL。
+
 ## 语法
 
-`HLL_HASH(value)`
+```sql
+HLL_HASH(<value>)
+```
+
+## 参数
 
-HLL_HASH 将一个值转换为 hll 类型。通常用于导入数据时，将普通类型的值导入到 hll 列中。
+| 参数     | 说明                                                   |
+| -------- | ------------------------------------------------------ |
+| `<value>` | 需要转换为 HLL 类型的值。可以是字符串、数字或任意数据类型。 |
+
+## 返回值
+
+返回一个 HLL 类型的值。返回结果类型为 HLL。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(HLL_HASH('abc'));
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
-```
-### keywords
-HLL,HLL_HASH
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index dbcb1254c03..a8d786c0268 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -22,58 +22,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
-
 ## 描述
+
+将一个 HLL 类型转换为一个 base64 编码的字符串。如果输入为 NULL，则返回 NULL。
+
 ## 语法
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
+
+## 参数
 
-将一个hll转化成一个base64字符串。输入是NULL的话返回NULL。
+| 参数        | 说明                                     |
+| ----------- | ---------------------------------------- |
+| `<hll_input>` | HLL 类型数据，如果输入为 NULL，则返回 NULL。 |
 
-## 举例
+## 示例
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index 76390c4f53c..fe065be3191 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
 ## 描述
+
+`HLL_CARDINALITY` 用于计算 HLL（HyperLogLog）类型值的基数。HLL 是一种近似计数的算法，适用于大规模数据集的基数估算。
+
 ## 语法
 
-`HLL_CARDINALITY(hll)`
+```sql
+HLL_CARDINALITY(<hll>)
+```
+
+## 参数
+
+| 参数  | 说明                                   |
+| ---- | -------------------------------------- |
+| `<hll>` | HLL 类型的值，表示需要计算基数的数据集合。 |
 
-HLL_CARDINALITY 用于计算 HLL 类型值的基数。
+## 返回值
+
+返回 HLL 类型值的基数，即数据集合中不重复元素的估算数。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 340d4ebe2de..760b736a248 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
 ## 描述
+
+`HLL_EMPTY` 用于返回一个 HLL（HyperLogLog）类型的空值，表示一个没有任何元素的数据集合。
+
 ## 语法
 
-`HLL_EMPTY(value)`
+```sql
+HLL_EMPTY()
+```
+
+## 返回值
 
-HLL_EMPTY 返回一个 hll 类型的空值。
+返回一个 HLL 类型的空值，表示一个没有任何元素的数据集合。
 
 ## 举例
+
+```sql
+select hll_cardinality(hll_empty());
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index 3a7e2a7bb9c..aef2b28fbfb 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,65 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
-
 ## 描述
+
+将一个 base64 编码的字符串（通常由 `HLL_TO_BASE64` 函数生成）转换为 HLL 类型。如果输入字符串不合法或为 NULL，则返回 
NULL。
+
 ## 语法
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## 参数
 
-将一个base64字符串(`hll_to_base64`函数的结果)转化为一个HLL。当输入字符串不合法时，返回NULL。
+| 参数     | 说明                                                                  
   |
+| -------- | 
------------------------------------------------------------------------ |
+| `<input>` | base64 编码的字符串，通常由 `HLL_TO_BASE64` 函数生成。如果字符串不合法，则返回 NULL。 |
 
-## 举例
+## 示例
 
-#### 查询示例
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-#### 数据导入示例：
-```
-前置条件：
-1. 在 Hive 中已经创建好一个名为 hive_test.hive_hll_table 的 Hive 表（格式为 textfile ，字段为：`k1` 
int, `k2` String, `k3` String, `uuid` binary），并且已经基于普通表使用 to_hll 的UDF函数往该表插入数据。
-
-2. 在 Doris 中创建名为 hive 的 Catalog 用来连接。
-
-3. 创建好 Doris 内表，名为 doris_hll_table，字段有：`k1` int, `k2` varchar(10), `k3` 
varchar(10), `uuid` HLL HLL_UNION。
-
-那么，此时可以使用 hll_from_base64 函数从 Hive 插入数据到 Doris 中：
-insert into doris_hll_table select k1, k2, k3, hll_from_base64(uuid) from 
hive.hive_test.hive_hll_table;
-```
-更多导入细节可以参考：[Hive HLL UDF](../../../ecosystem/hive-hll-udf.md)
-
-### keywords
-HLL_FROM_BASE64,HLL
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b7564691945..4a7337ee415 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,22 +24,39 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
 ## 描述
+
+将一个值转换为 HLL（HyperLogLog）类型。该函数通常用于数据加载时，将普通类型的值转换为 HLL 类型，常用于处理大数据集的去重和计数操作。
+
+特殊情况：
+- 如果输入值为 NULL，则返回 NULL。
+
 ## 语法
 
-`HLL_HASH(value)`
+```sql
+HLL_HASH(<value>)
+```
+
+## 参数
 
-HLL_HASH 将一个值转换为 hll 类型。通常用于导入数据时，将普通类型的值导入到 hll 列中。
+| 参数     | 说明                                                   |
+| -------- | ------------------------------------------------------ |
+| `<value>` | 需要转换为 HLL 类型的值。可以是字符串、数字或任意数据类型。 |
+
+## 返回值
+
+返回一个 HLL 类型的值。返回结果类型为 HLL。
 
 ## 举例
+
+```sql
+select HLL_CARDINALITY(HLL_HASH('abc'));
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
-```
-### keywords
-HLL,HLL_HASH
+```
\ No newline at end of file
diff --git 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index dbcb1254c03..a8d786c0268 100644
--- 
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -22,58 +22,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
-
 ## 描述
+
+将一个 HLL 类型转换为一个 base64 编码的字符串。如果输入为 NULL，则返回 NULL。
+
 ## 语法
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
+
+## 参数
 
-将一个hll转化成一个base64字符串。输入是NULL的话返回NULL。
+| 参数        | 说明                                     |
+| ----------- | ---------------------------------------- |
+| `<hll_input>` | HLL 类型数据，如果输入为 NULL，则返回 NULL。 |
 
-## 举例
+## 示例
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
 
b/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
index 776a7c3722e..75cc2b34805 100644
--- 
a/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
+++ 
b/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
-### description
-#### Syntax
+## Description
 
-`HLL_EMPTY(value)`
+`HLL_EMPTY` returns an empty HLL (HyperLogLog) value, representing a data set 
with no elements.
 
-HLL_EMPTY returns a null value of type hll.
+## Syntax
 
-### example
+```sql
+HLL_EMPTY()
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+## Return Value
+
+Returns an empty HLL type value, representing a data set with no elements.
+
+## Example
+
+```sql
+select hll_cardinality(hll_empty());
+```
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md 
b/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
index b174e6236e8..d2df2cd4016 100644
--- 
a/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
+++ 
b/versioned_docs/version-1.2/sql-manual/sql-functions/hll-functions/hll-hash.md
@@ -24,23 +24,32 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
-### description
-#### Syntax
+## Description
 
-`HLL_HASH(value)`
+Converts a given value to the HLL (HyperLogLog) type. This function is 
typically used during data loading to create an HLL from raw data.
 
-HLL_HASH converts a value to hll type. 
-Typically used when loading data.
+## Syntax
 
-### example
+```sql
+HLL_HASH(<value>)
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+## Parameters
+
+| Parameter | Description                                                   |
+|-----------|---------------------------------------------------------------|
+| `<value>` | The value to be converted to HLL type. This can be a string, 
number, or any data type. |
+
+## Examples
+
+```sql
+SELECT HLL_CARDINALITY(HLL_HASH('abc'));
+```
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
 ```
-### keywords
-HLL,HLL_HASH
diff --git 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
index db1b7437ca3..f45b54272cd 100644
--- 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
+++ 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
-### description
-#### Syntax
+## Description
 
-`HLL_CARDINALITY(hll)`
+`HLL_CARDINALITY` calculates the cardinality of a HyperLogLog (HLL) type 
value. It is an approximate counting algorithm suitable for estimating the 
number of distinct elements in large datasets.
 
-HLL_CARDINALITY is used to calculate the cardinality of a single HLL type 
value.
+## Syntax
 
-### example
+```sql
+HLL_CARDINALITY(<hll>)
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+## Parameters
+
+| Parameter  | Description                                              |
+| ---------- | -------------------------------------------------------- |
+| `<hll>`    | The HLL type value representing the dataset whose cardinality 
needs to be estimated. |
+
+## Return Value
+
+Returns the estimated cardinality of the HLL type value, representing the 
number of distinct elements in the dataset.
+
+## Example
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
+```
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
index 776a7c3722e..75cc2b34805 100644
--- 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
+++ 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
-### description
-#### Syntax
+## Description
 
-`HLL_EMPTY(value)`
+`HLL_EMPTY` returns an empty HLL (HyperLogLog) value, representing a data set 
with no elements.
 
-HLL_EMPTY returns a null value of type hll.
+## Syntax
 
-### example
+```sql
+HLL_EMPTY()
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+## Return Value
+
+Returns an empty HLL type value, representing a data set with no elements.
+
+## Example
+
+```sql
+select hll_cardinality(hll_empty());
+```
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
index b174e6236e8..d2df2cd4016 100644
--- 
a/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
+++ 
b/versioned_docs/version-2.0/sql-manual/sql-functions/hll-functions/hll-hash.md
@@ -24,23 +24,32 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
-### description
-#### Syntax
+## Description
 
-`HLL_HASH(value)`
+Converts a given value to the HLL (HyperLogLog) type. This function is 
typically used during data loading to create an HLL from raw data.
 
-HLL_HASH converts a value to hll type. 
-Typically used when loading data.
+## Syntax
 
-### example
+```sql
+HLL_HASH(<value>)
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+## Parameters
+
+| Parameter | Description                                                   |
+|-----------|---------------------------------------------------------------|
+| `<value>` | The value to be converted to HLL type. This can be a string, 
number, or any data type. |
+
+## Examples
+
+```sql
+SELECT HLL_CARDINALITY(HLL_HASH('abc'));
+```
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
 ```
-### keywords
-HLL,HLL_HASH
diff --git 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index db1b7437ca3..f45b54272cd 100644
--- 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
-### description
-#### Syntax
+## Description
 
-`HLL_CARDINALITY(hll)`
+`HLL_CARDINALITY` calculates the cardinality of a HyperLogLog (HLL) type 
value. It is an approximate counting algorithm suitable for estimating the 
number of distinct elements in large datasets.
 
-HLL_CARDINALITY is used to calculate the cardinality of a single HLL type 
value.
+## Syntax
 
-### example
+```sql
+HLL_CARDINALITY(<hll>)
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+## Parameters
+
+| Parameter  | Description                                              |
+| ---------- | -------------------------------------------------------- |
+| `<hll>`    | The HLL type value representing the dataset whose cardinality 
needs to be estimated. |
+
+## Return Value
+
+Returns the estimated cardinality of the HLL type value, representing the 
number of distinct elements in the dataset.
+
+## Example
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
+```
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 776a7c3722e..75cc2b34805 100644
--- 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
-### description
-#### Syntax
+## Description
 
-`HLL_EMPTY(value)`
+`HLL_EMPTY` returns an empty HLL (HyperLogLog) value, representing a data set 
with no elements.
 
-HLL_EMPTY returns a null value of type hll.
+## Syntax
 
-### example
+```sql
+HLL_EMPTY()
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+## Return Value
+
+Returns an empty HLL type value, representing a data set with no elements.
+
+## Example
+
+```sql
+select hll_cardinality(hll_empty());
+```
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index c0efeb46449..8a25e148373 100644
--- 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,50 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
+## Description
 
-### description
-#### Syntax
+Converts a base64-encoded string (usually the result of the `HLL_TO_BASE64` 
function) into an HLL. If the input string is invalid or NULL, the function 
returns NULL.
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+## Syntax
 
-Convert a base64 string(result of function `hll_to_base64`) into a hll. If 
input string is invalid, return NULL.
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## Parameters
 
-### example
+| Parameter | Description                                                      
           |
+| --------- | 
--------------------------------------------------------------------------- |
+| `<input>` | A base64-encoded string, typically generated by the 
`HLL_TO_BASE64` function. If the input string is invalid or NULL, the function 
returns NULL. |
 
+## Examples
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
+
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
+
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-### keywords
-HLL_FROM_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b174e6236e8..d2df2cd4016 100644
--- 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,23 +24,32 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
-### description
-#### Syntax
+## Description
 
-`HLL_HASH(value)`
+Converts a given value to the HLL (HyperLogLog) type. This function is 
typically used during data loading to create an HLL from raw data.
 
-HLL_HASH converts a value to hll type. 
-Typically used when loading data.
+## Syntax
 
-### example
+```sql
+HLL_HASH(<value>)
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+## Parameters
+
+| Parameter | Description                                                   |
+|-----------|---------------------------------------------------------------|
+| `<value>` | The value to be converted to HLL type. This can be a string, 
number, or any data type. |
+
+## Examples
+
+```sql
+SELECT HLL_CARDINALITY(HLL_HASH('abc'));
+```
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
 ```
-### keywords
-HLL,HLL_HASH
diff --git 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index 6da0051d84c..21e006692e7 100644
--- 
a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -1,8 +1,12 @@
+根据您提供的规范，我将重新整理文档：
+
 ---
+
 {
     "title": "HLL_TO_BASE64",
     "language": "en"
 }
+
 ---
 
 <!-- 
@@ -22,58 +26,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
+## Description
 
-### description
-#### Syntax
+Converts an input HLL to a base64-encoded string. If the input is `<null>`, 
the function returns `<null>`.
+
+## Syntax
+
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+## Parameters
 
-Convert an input hll to a base64 string. If input is NULL, return NULL.
+| Parameter    | Description                                          |
+| ------------ | ---------------------------------------------------- |
+| `<hll_input>` | The HyperLogLog (HLL) data to be converted to a 
base64-encoded string. If the input is `<null>`, the function returns `<null>`. 
|
 
-### example
+## Examples
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
index db1b7437ca3..f45b54272cd 100644
--- 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
+++ 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-cardinality.md
@@ -24,22 +24,36 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_CARDINALITY
-### description
-#### Syntax
+## Description
 
-`HLL_CARDINALITY(hll)`
+`HLL_CARDINALITY` calculates the cardinality of a HyperLogLog (HLL) type 
value. It is an approximate counting algorithm suitable for estimating the 
number of distinct elements in large datasets.
 
-HLL_CARDINALITY is used to calculate the cardinality of a single HLL type 
value.
+## Syntax
 
-### example
+```sql
+HLL_CARDINALITY(<hll>)
 ```
-MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+
+## Parameters
+
+| Parameter  | Description                                              |
+| ---------- | -------------------------------------------------------- |
+| `<hll>`    | The HLL type value representing the dataset whose cardinality 
needs to be estimated. |
+
+## Return Value
+
+Returns the estimated cardinality of the HLL type value, representing the 
number of distinct elements in the dataset.
+
+## Example
+
+```sql
+select HLL_CARDINALITY(uv_set) from test_uv;
+```
+
+```text
 +---------------------------+
 | hll_cardinality(`uv_set`) |
 +---------------------------+
 |                         3 |
 +---------------------------+
-```
-### keywords
-HLL,HLL_CARDINALITY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
index 776a7c3722e..75cc2b34805 100644
--- 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
+++ 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-empty.md
@@ -24,22 +24,30 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_EMPTY
-### description
-#### Syntax
+## Description
 
-`HLL_EMPTY(value)`
+`HLL_EMPTY` returns an empty HLL (HyperLogLog) value, representing a data set 
with no elements.
 
-HLL_EMPTY returns a null value of type hll.
+## Syntax
 
-### example
+```sql
+HLL_EMPTY()
 ```
-MySQL > select hll_cardinality(hll_empty());
+
+## Return Value
+
+Returns an empty HLL type value, representing a data set with no elements.
+
+## Example
+
+```sql
+select hll_cardinality(hll_empty());
+```
+
+```text
 +------------------------------+
 | hll_cardinality(hll_empty()) |
 +------------------------------+
 |                            0 |
 +------------------------------+
-```
-### keywords
-HLL,HLL_EMPTY
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
index c0efeb46449..8a25e148373 100644
--- 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
+++ 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-from-base64.md
@@ -22,50 +22,68 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_from_base64
+## Description
 
-### description
-#### Syntax
+Converts a base64-encoded string (usually the result of the `HLL_TO_BASE64` 
function) into an HLL. If the input string is invalid or NULL, the function 
returns NULL.
 
-`HLL HLL_FROM_BASE64(VARCHAR input)`
+## Syntax
 
-Convert a base64 string(result of function `hll_to_base64`) into a hll. If 
input string is invalid, return NULL.
+```sql
+HLL_FROM_BASE64(<input>)
+```
+
+## Parameters
 
-### example
+| Parameter | Description                                                      
           |
+| --------- | 
--------------------------------------------------------------------------- |
+| `<input>` | A base64-encoded string, typically generated by the 
`HLL_TO_BASE64` function. If the input string is invalid or NULL, the function 
returns NULL. |
 
+## Examples
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
 ```
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(''))));
+```
+
+```text
 +---------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('')))) |
 +---------------------------------------------------------------+
 |                                                             1 |
 +---------------------------------------------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL))));
+```
+
+```text
 +-----------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash(NULL)))) |
 +-----------------------------------------------------------------+
 |                                                               0 |
 +-----------------------------------------------------------------+
-1 row in set (0.02 sec)
-```
-
-### keywords
-HLL_FROM_BASE64, HLL
+```
\ No newline at end of file
diff --git 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
index b174e6236e8..d2df2cd4016 100644
--- 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
+++ 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-hash.md
@@ -24,23 +24,32 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## HLL_HASH
-### description
-#### Syntax
+## Description
 
-`HLL_HASH(value)`
+Converts a given value to the HLL (HyperLogLog) type. This function is 
typically used during data loading to create an HLL from raw data.
 
-HLL_HASH converts a value to hll type. 
-Typically used when loading data.
+## Syntax
 
-### example
+```sql
+HLL_HASH(<value>)
 ```
-MySQL > select HLL_CARDINALITY(HLL_HASH('abc'));
+
+## Parameters
+
+| Parameter | Description                                                   |
+|-----------|---------------------------------------------------------------|
+| `<value>` | The value to be converted to HLL type. This can be a string, 
number, or any data type. |
+
+## Examples
+
+```sql
+SELECT HLL_CARDINALITY(HLL_HASH('abc'));
+```
+
+```text
 +----------------------------------+
 | hll_cardinality(HLL_HASH('abc')) |
 +----------------------------------+
 |                                1 |
 +----------------------------------+
 ```
-### keywords
-HLL,HLL_HASH
diff --git 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
index 6da0051d84c..21e006692e7 100644
--- 
a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
+++ 
b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/hll-functions/hll-to-base64.md
@@ -1,8 +1,12 @@
+根据您提供的规范，我将重新整理文档：
+
 ---
+
 {
     "title": "HLL_TO_BASE64",
     "language": "en"
 }
+
 ---
 
 <!-- 
@@ -22,58 +26,80 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## hll_to_base64
+## Description
 
-### description
-#### Syntax
+Converts an input HLL to a base64-encoded string. If the input is `<null>`, 
the function returns `<null>`.
+
+## Syntax
+
+```sql
+HLL_TO_BASE64(<hll_input>)
+```
 
-`VARCHAR HLL_TO_BASE64(HLL input)`
+## Parameters
 
-Convert an input hll to a base64 string. If input is NULL, return NULL.
+| Parameter    | Description                                          |
+| ------------ | ---------------------------------------------------- |
+| `<hll_input>` | The HyperLogLog (HLL) data to be converted to a 
base64-encoded string. If the input is `<null>`, the function returns `<null>`. 
|
 
-### example
+## Examples
 
+```sql
+select hll_to_base64(NULL);
 ```
-mysql> select hll_to_base64(NULL);
+
+```text
 +---------------------+
 | hll_to_base64(NULL) |
 +---------------------+
 | NULL                |
 +---------------------+
-1 row in set (0.00 sec)
+```
 
-mysql> select hll_to_base64(hll_empty());
+```sql
+select hll_to_base64(hll_empty());
+```
+
+```text
 +----------------------------+
 | hll_to_base64(hll_empty()) |
 +----------------------------+
 | AA==                       |
 +----------------------------+
-1 row in set (0.02 sec)
+```
 
-mysql> select hll_to_base64(hll_hash('abc'));
+```sql
+select hll_to_base64(hll_hash('abc'));
+```
+
+```text
 +--------------------------------+
 | hll_to_base64(hll_hash('abc')) |
 +--------------------------------+
 | AQEC5XSzrpDsdw==               |
 +--------------------------------+
-1 row in set (0.03 sec)
+```
+
+```sql
+select hll_union_agg(hll_from_base64(hll_to_base64(pv))), hll_union_agg(pv) 
from test_hll;
+```
 
-mysql> select hll_union_agg(hll_from_base64(hll_to_base64(pv))), 
hll_union_agg(pv) from test_hll;
+```text
 +---------------------------------------------------+-------------------+
 | hll_union_agg(hll_from_base64(hll_to_base64(pv))) | hll_union_agg(pv) |
 +---------------------------------------------------+-------------------+
 |                                                 3 |                 3 |
 +---------------------------------------------------+-------------------+
-1 row in set (0.04 sec)
+```
+
+```sql
+select hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```
 
-mysql>  select 
hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc'))));
+```text
 +------------------------------------------------------------------+
 | hll_cardinality(hll_from_base64(hll_to_base64(hll_hash('abc')))) |
 +------------------------------------------------------------------+
 |                                                                1 |
 +------------------------------------------------------------------+
-1 row in set (0.04 sec)
-```
-
-### keywords
-HLL_TO_BASE64, HLL
+```
\ No newline at end of file


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