# NamespaceIdentifierUnion
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Object to store union of values for a provisioned cluster or serverless namespace’s identifier.

## Contents
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**Note**  
In the following list, the required parameters are described first.

**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** ProvisionedIdentifier **   
The identifier for a provisioned cluster.  
Type: [ProvisionedIdentifier](API_ProvisionedIdentifier.md) object  
Required: No

 ** ServerlessIdentifier **   
The identifier for a serverless namespace.  
Type: [ServerlessIdentifier](API_ServerlessIdentifier.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/redshift-2012-12-01/NamespaceIdentifierUnion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/redshift-2012-12-01/NamespaceIdentifierUnion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/redshift-2012-12-01/NamespaceIdentifierUnion)