[Enhancement](docs) Sql function compress and uncompress

docs/sql-manual/sql-functions/scalar-functions/string-functions/compress.md

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+---
+{
+    "title": "COMPRESS",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+The COMPRESS function is used to compress strings or values into binary data. The compressed data can be decompressed using the UNCOMPRESS function.
+
+## Syntax
+
+```sql
+COMPRESS(<uncompressed_str>)
+```
+
+## Parameters
+
+| Parameters                | Description            |
+|--------------------|---------------|
+| `<uncompressed_str>` | Uncompressed raw string |
+
+The parameter type is varchar or string
+
+## Return Value
+The return string is the same as the input <uncompressed_str> type  
+The first ten digits of the returned string are the hexadecimal length of the original string, for example, 0x01000000. What follows is the compressed byte stream, which is unreadable and you should not get it.
+
+Special case：
+- <uncompressed_str> Return '0x' when input is ''
+
+## Example
+
+``` sql
+select compress('abc');
+```
+The result of the decompression is unreadable and you don't need to care about its true value.
+
+```sql
+select compress('');
+```
+```text 
++--------------+
+| compress('') |
++--------------+
+|              |
++--------------+
+```

docs/sql-manual/sql-functions/scalar-functions/string-functions/uncompressed.md

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+---
+{
+    "title": "UNCOMPRESS",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+The UNCOMPRESS function is used to COMPRESS binary data into strings or values, you need to make sure that the binary data needs to be the result of 'compress'.
+
+## Syntax
+
+```sql
+UNCOMPRESS(<compressed_str>)
+```
+
+## Parameters
+
+| Parameters                | Description   |
+|--------------------|---------------|
+| `<compressed_str>` | Compressed binary data |
+
+The parameter type is varchar or string
+
+## Return Value
+The return value is the same as the input <compressed_str> type
+
+Special cases:
+- <compressed_str> Returns NULL if the binary data is not compressed.
+
+## Example
+
+``` sql
+select uncompress(compress('abc'));
+```
+```text 
++-----------------------------+
+| uncompress(compress('abc')) |
++-----------------------------+
+| abc                         |
++-----------------------------+
+```
+```sql
+select uncompress(compress(''));
+```
+```text 
++--------------------------+
+| uncompress(compress('')) |
++--------------------------+
+|                          |
++--------------------------+
+```

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/compress.md

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+---
+{
+    "title": "COMPRESS",
+    "language": "zh-CN"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## 描述
+COMPRESS 函数用于将字符串或值压缩成二进制数据，压缩后的数据可通过 `UNCOMPRESS` 函数解压还原。
+
+## 语法
+
+```sql
+COMPRESS(<uncompresse_str>)
+```
+
+## 参数
+
+| 参数                | 说明            |
+|--------------------|---------------|
+| `<uncompressed_str>` | 未压缩的原串 |
+
+参数类型是varchar或者string
+
+## 返回值
+返回串与输入的 <uncompressed_str> 类型一致  
+返回串的前十位是原串长度的十六进制形式, 例如: 0x01000000。后面的是压缩字节流，它是不可读的，你不应该获取它。  
+特殊情况：
+- <uncompressed_str> 输入为 ‘’ 时，返回 '0x'
+
+## 举例
+
+``` sql
+select compress('abc');
+```
+解压的结果是不可读的，你不需要关心它的真实值。
+
+```sql
+select compress('');
+```
+```text 
++--------------+
+| compress('') |
++--------------+
+|              |
++--------------+
+```

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/uncompressed.md

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+---
+{
+    "title": "UNCOMPRESS",
+    "language": "zh-CN"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## 描述
+UNCOMPRESS 函数用于将二进制数据解压缩成字符串或值，你需要确保二进制数据需要是`COMPRESS`的结果。
+
+## 语法
+
+```sql
+UNCOMPRESS(<compressed_str>)
+```
+
+## 参数
+
+| 参数                | 说明            |
+|--------------------|---------------|
+| `<compressed_str>` | 压缩得到的二进制数据 |
+
+参数类型是varchar或者string
+
+## 返回值
+返回值与输入的 <compressed_str> 类型一致
+特殊情况：
+- <compressed_str> 输入不是`COMPRESS`得到的二进制数据时, 返回 NULL.
+
+
+## 举例
+
+``` sql
+select uncompress(compress('abc'));
+```
+```text 
++-----------------------------+
+| uncompress(compress('abc')) |
++-----------------------------+
+| abc                         |
++-----------------------------+
+```
+```sql
+select uncompress(compress(''));
+```
+```text 
++--------------------------+
+| uncompress(compress('')) |
++--------------------------+
+|                          |
++--------------------------+
+```

i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/compress.md

@@ -0,0 +1,66 @@
+---
+{
+    "title": "COMPRESS",
+    "language": "zh-CN"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## 描述
+COMPRESS 函数用于将字符串或值压缩成二进制数据，压缩后的数据可通过 `UNCOMPRESS` 函数解压还原。
+
+## 语法
+
+```sql
+COMPRESS(<uncompresse_str>)
+```
+
+## 参数
+
+| 参数                | 说明            |
+|--------------------|---------------|
+| `<uncompressed_str>` | 未压缩的原串 |
+
+参数类型是varchar或者string
+
+## 返回值
+返回串与输入的 <uncompressed_str> 类型一致  
+返回串的前十位是原串长度的十六进制形式, 例如: 0x01000000。后面的是压缩字节流，它是不可读的，你不应该获取它。  
+特殊情况：
+- <uncompressed_str> 输入为 ‘’ 时，返回 '0x'
+
+## 举例
+
+``` sql
+select compress('abc');
+```
+解压的结果是不可读的，你不需要关心它的真实值。
+
+```sql
+select compress('');
+```
+```text 
++--------------+
+| compress('') |
++--------------+
+|              |
++--------------+
+```