# AggregateColumn
<a name="API_AggregateColumn"></a>

Column in configured table that can be used in aggregate function in query.

## Contents
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 ** columnNames **   <a name="API-Type-AggregateColumn-columnNames"></a>
Column names in configured table of aggregate columns.  
Type: Array of strings  
Array Members: Minimum number of 1 item.  
Length Constraints: Minimum length of 1. Maximum length of 127.  
Pattern: `[a-z0-9_](([a-z0-9_ ]+-)*([a-z0-9_ ]+))?`   
Required: Yes

 ** function **   <a name="API-Type-AggregateColumn-function"></a>
Aggregation function that can be applied to aggregate column in query.  
Type: String  
Valid Values: `SUM | SUM_DISTINCT | COUNT | COUNT_DISTINCT | AVG`   
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/cleanrooms-2022-02-17/AggregateColumn) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cleanrooms-2022-02-17/AggregateColumn) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cleanrooms-2022-02-17/AggregateColumn)