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# AWS::Athena::WorkGroup EngineVersion
<a name="aws-properties-athena-workgroup-engineversion"></a>

The Athena engine version for running queries, or the PySpark engine version for running sessions.

## Syntax
<a name="aws-properties-athena-workgroup-engineversion-syntax"></a>

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

### JSON
<a name="aws-properties-athena-workgroup-engineversion-syntax.json"></a>

```
{
  "[EffectiveEngineVersion](#cfn-athena-workgroup-engineversion-effectiveengineversion)" : {{String}},
  "[SelectedEngineVersion](#cfn-athena-workgroup-engineversion-selectedengineversion)" : {{String}}
}
```

### YAML
<a name="aws-properties-athena-workgroup-engineversion-syntax.yaml"></a>

```
  [EffectiveEngineVersion](#cfn-athena-workgroup-engineversion-effectiveengineversion): {{String}}
  [SelectedEngineVersion](#cfn-athena-workgroup-engineversion-selectedengineversion): {{String}}
```

## Properties
<a name="aws-properties-athena-workgroup-engineversion-properties"></a>

`EffectiveEngineVersion`  <a name="cfn-athena-workgroup-engineversion-effectiveengineversion"></a>
Read only. The engine version on which the query runs. If the user requests a valid engine version other than Auto, the effective engine version is the same as the engine version that the user requested. If the user requests Auto, the effective engine version is chosen by Athena. When a request to update the engine version is made by a `CreateWorkGroup` or `UpdateWorkGroup` operation, the `EffectiveEngineVersion` field is ignored.  
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SelectedEngineVersion`  <a name="cfn-athena-workgroup-engineversion-selectedengineversion"></a>
The engine version requested by the user. Possible values are determined by the output of `ListEngineVersions`, including AUTO. The default is AUTO.  
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS CloudFormation. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query AWSCloudFormation` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).