ClickHouse/docs/_description_templates/template-function.md

## functionName {#functionname-in-lower-case}

Short description.

**Syntax** (without SELECT)

``` sql
<function syntax>
```

Alias: `<alias name>`. (Optional)

More text (Optional).

**Parameters** (Optional)

-   `x` — Description. [Type name](relative/path/to/type/dscr.md#type).
-   `y` — Description. [Type name](relative/path/to/type/dscr.md#type).

**Returned value(s)**

-   Returned values list.

Type: [Type](relative/path/to/type/dscr.md#type).

**Example**

The example must show usage and/or a use cases. The following text contains recommended parts of an example.

Input table (Optional):

``` text
```

Query:

``` sql
```

Result:

``` text
```

**See Also** (Optional)

-   [link](#)