# IcebergPartitionField
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Defines a single partition field in an Iceberg partition specification.

## Contents
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 ** name **   <a name="AmazonS3-Type-s3Buckets_IcebergPartitionField-name"></a>
The name for this partition field. This name is used in the partitioned file paths.  
Type: String  
Required: Yes

 ** source-id **   <a name="AmazonS3-Type-s3Buckets_IcebergPartitionField-source-id"></a>
The ID of the source schema field to partition by. This must reference a valid field ID from the table schema.  
Type: Integer  
Required: Yes

 ** transform **   <a name="AmazonS3-Type-s3Buckets_IcebergPartitionField-transform"></a>
The partition transform to apply to the source field. Supported transforms include `identity`, `year`, `month`, `day`, `hour`, `bucket`, and `truncate`. For more information, see the [Apache Iceberg partition transforms documentation](https://iceberg.apache.org/spec/#partition-transforms).  
Type: String  
Required: Yes

 ** field-id **   <a name="AmazonS3-Type-s3Buckets_IcebergPartitionField-field-id"></a>
An optional unique identifier for this partition field. If not specified, S3 Tables automatically assigns a field ID.  
Type: Integer  
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/s3tables-2018-05-10/IcebergPartitionField) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/s3tables-2018-05-10/IcebergPartitionField) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/s3tables-2018-05-10/IcebergPartitionField)