class Aws::DynamoDB::Types::BatchWriteItemOutput

Represents the output of a `BatchWriteItem` operation.

@!attribute [rw] unprocessed_items

A map of tables and requests against those tables that were not
processed. The `UnprocessedItems` value is in the same form as
`RequestItems`, so you can provide this value directly to a
subsequent `BatchGetItem` operation. For more information, see
`RequestItems` in the Request Parameters section.

Each `UnprocessedItems` entry consists of a table name and, for that
table, a list of operations to perform (`DeleteRequest` or
`PutRequest`).

* `DeleteRequest` - Perform a `DeleteItem` operation on the
  specified item. The item to be deleted is identified by a `Key`
  subelement:

  * `Key` - A map of primary key attribute values that uniquely
    identify the item. Each entry in this map consists of an
    attribute name and an attribute value.

  ^

* `PutRequest` - Perform a `PutItem` operation on the specified
  item. The item to be put is identified by an `Item` subelement:

  * `Item` - A map of attributes and their values. Each entry in
    this map consists of an attribute name and an attribute value.
    Attribute values must not be null; string and binary type
    attributes must have lengths greater than zero; and set type
    attributes must not be empty. Requests that contain empty values
    will be rejected with a `ValidationException` exception.

    If you specify any attributes that are part of an index key,
    then the data types for those attributes must match those of the
    schema in the table's attribute definition.

If there are no unprocessed items remaining, the response contains
an empty `UnprocessedItems` map.
@return [Hash<String,Array<Types::WriteRequest>>]

@!attribute [rw] item_collection_metrics

A list of tables that were processed by `BatchWriteItem` and, for
each table, information about any item collections that were
affected by individual `DeleteItem` or `PutItem` operations.

Each entry consists of the following subelements:

* `ItemCollectionKey` - The partition key value of the item
  collection. This is the same as the partition key value of the
  item.

* `SizeEstimateRangeGB` - An estimate of item collection size,
  expressed in GB. This is a two-element array containing a lower
  bound and an upper bound for the estimate. The estimate includes
  the size of all the items in the table, plus the size of all
  attributes projected into all of the local secondary indexes on
  the table. Use this estimate to measure whether a local secondary
  index is approaching its size limit.

  The estimate is subject to change over time; therefore, do not
  rely on the precision or accuracy of the estimate.
@return [Hash<String,Array<Types::ItemCollectionMetrics>>]

@!attribute [rw] consumed_capacity

The capacity units consumed by the entire `BatchWriteItem`
operation.

Each element consists of:

* `TableName` - The table that consumed the provisioned throughput.

* `CapacityUnits` - The total number of capacity units consumed.
@return [Array<Types::ConsumedCapacity>]

@see docs.aws.amazon.com/goto/WebAPI/dynamodb-2012-08-10/BatchWriteItemOutput AWS API Documentation

Constants

SENSITIVE