This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::QuickSight::DataSet UniqueKey
<a name="aws-properties-quicksight-dataset-uniquekey"></a>

<a name="aws-properties-quicksight-dataset-uniquekey-description"></a>The `UniqueKey` property type specifies Property description not available. for an [AWS::QuickSight::DataSet](aws-resource-quicksight-dataset.md).

## Syntax
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To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-quicksight-dataset-uniquekey-syntax.json"></a>

```
{
  "[ColumnNames](#cfn-quicksight-dataset-uniquekey-columnnames)" : {{[ String, ... ]}}
}
```

### YAML
<a name="aws-properties-quicksight-dataset-uniquekey-syntax.yaml"></a>

```
  [ColumnNames](#cfn-quicksight-dataset-uniquekey-columnnames): {{
    - String}}
```

## Properties
<a name="aws-properties-quicksight-dataset-uniquekey-properties"></a>

`ColumnNames`  <a name="cfn-quicksight-dataset-uniquekey-columnnames"></a>
Property description not available.  
*Required*: Yes  
*Type*: Array of String  
*Minimum*: `1 | 1`  
*Maximum*: `127 | 1`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)