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

A transform operation that creates calculated columns. Columns created in one such operation form a lexical closure.

## Syntax
<a name="aws-properties-quicksight-dataset-createcolumnsoperation-syntax"></a>

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

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

```
{
  "[Alias](#cfn-quicksight-dataset-createcolumnsoperation-alias)" : {{String}},
  "[Columns](#cfn-quicksight-dataset-createcolumnsoperation-columns)" : {{[ CalculatedColumn, ... ]}},
  "[Source](#cfn-quicksight-dataset-createcolumnsoperation-source)" : {{TransformOperationSource}}
}
```

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

```
  [Alias](#cfn-quicksight-dataset-createcolumnsoperation-alias): {{String}}
  [Columns](#cfn-quicksight-dataset-createcolumnsoperation-columns): {{
    - CalculatedColumn}}
  [Source](#cfn-quicksight-dataset-createcolumnsoperation-source): {{
    TransformOperationSource}}
```

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

`Alias`  <a name="cfn-quicksight-dataset-createcolumnsoperation-alias"></a>
Alias for this operation.  
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `64`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Columns`  <a name="cfn-quicksight-dataset-createcolumnsoperation-columns"></a>
Calculated columns to create.  
*Required*: Yes  
*Type*: Array of [CalculatedColumn](aws-properties-quicksight-dataset-calculatedcolumn.md)  
*Minimum*: `0`  
*Maximum*: `256`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Source`  <a name="cfn-quicksight-dataset-createcolumnsoperation-source"></a>
The source transform operation that provides input data for creating new calculated columns.  
*Required*: No  
*Type*: [TransformOperationSource](aws-properties-quicksight-dataset-transformoperationsource.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)