# RedshiftMetadata
<a name="API_RedshiftMetadata"></a>

Describes the `DataSource` details specific to Amazon Redshift.

## Contents
<a name="API_RedshiftMetadata_Contents"></a>

 ** DatabaseUserName **   <a name="amazonml-Type-RedshiftMetadata-DatabaseUserName"></a>
A username to be used by Amazon Machine Learning (Amazon ML)to connect to a database on an Amazon Redshift cluster. The username should have sufficient permissions to execute the `RedshiftSelectSqlQuery` query. The username should be valid for an Amazon Redshift [USER](https://docs.aws.amazon.com/redshift/latest/dg/r_CREATE_USER.html).  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: No

 ** RedshiftDatabase **   <a name="amazonml-Type-RedshiftMetadata-RedshiftDatabase"></a>
Describes the database details required to connect to an Amazon Redshift database.  
Type: [RedshiftDatabase](API_RedshiftDatabase.md) object  
Required: No

 ** SelectSqlQuery **   <a name="amazonml-Type-RedshiftMetadata-SelectSqlQuery"></a>
 The SQL query that is specified during [CreateDataSourceFromRedshift](API_CreateDataSourceFromRedshift.md). Returns only if `Verbose` is true in GetDataSourceInput.   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 16777216.  
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/machinelearning-2014-12-12/RedshiftMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/machinelearning-2014-12-12/RedshiftMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/machinelearning-2014-12-12/RedshiftMetadata)