# DropDuplicates
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Specifies a transform that removes rows of repeating data from a data set. 

## Contents
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 ** Inputs **   <a name="Glue-Type-DropDuplicates-Inputs"></a>
The data inputs identified by their node names.  
Type: Array of strings  
Array Members: Fixed number of 1 item.  
Pattern: `[A-Za-z0-9_-]*`   
Required: Yes

 ** Name **   <a name="Glue-Type-DropDuplicates-Name"></a>
The name of the transform node.  
Type: String  
Pattern: `([^\r\n])*`   
Required: Yes

 ** Columns **   <a name="Glue-Type-DropDuplicates-Columns"></a>
The name of the columns to be merged or removed if repeating.  
Type: Array of arrays of strings  
Pattern: `[A-Za-z0-9_-]*`   
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/glue-2017-03-31/DropDuplicates) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/glue-2017-03-31/DropDuplicates) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/glue-2017-03-31/DropDuplicates)