Metadata pertaining to this request.
The capacity units consumed by the entire
Each element consists of:
TableName - The table that consumed the provisioned
CapacityUnits - The total number of capacity units consumed.
A list of tables that were processed by
BatchWriteItem and, for each
table, information about any item collections that were affected by individual
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.
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
BatchWriteItem operation. For more information, see
RequestItems in the Request Parameters section.
UnprocessedItems entry consists of a table name and, for that table,
a list of operations to perform (
DeleteRequest - Perform a
DeleteItem operation on the
specified item. The item to be deleted is identified by a
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 - 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
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
The output of BatchWriteItemCommand.