# UnpivotOperation
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A transform operation that converts columns into rows, normalizing the data structure.

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

 ** Alias **   <a name="QS-Type-UnpivotOperation-Alias"></a>
Alias for this operation.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: Yes

 ** ColumnsToUnpivot **   <a name="QS-Type-UnpivotOperation-ColumnsToUnpivot"></a>
The list of columns to unpivot from the source data.  
Type: Array of [ColumnToUnpivot](API_ColumnToUnpivot.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 100 items.  
Required: Yes

 ** Source **   <a name="QS-Type-UnpivotOperation-Source"></a>
The source transform operation that provides input data for unpivoting.  
Type: [TransformOperationSource](API_TransformOperationSource.md) object  
Required: Yes

 ** UnpivotedLabelColumnId **   <a name="QS-Type-UnpivotOperation-UnpivotedLabelColumnId"></a>
A unique identifier for the new column that will contain the unpivoted column names.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: Yes

 ** UnpivotedLabelColumnName **   <a name="QS-Type-UnpivotOperation-UnpivotedLabelColumnName"></a>
The name for the new column that will contain the unpivoted column names.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** UnpivotedValueColumnId **   <a name="QS-Type-UnpivotOperation-UnpivotedValueColumnId"></a>
A unique identifier for the new column that will contain the unpivoted values.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.  
Required: Yes

 ** UnpivotedValueColumnName **   <a name="QS-Type-UnpivotOperation-UnpivotedValueColumnName"></a>
The name for the new column that will contain the unpivoted values.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

## 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/quicksight-2018-04-01/UnpivotOperation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/quicksight-2018-04-01/UnpivotOperation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/quicksight-2018-04-01/UnpivotOperation)