globalSecondaryIndexes

One or more global secondary indexes (the maximum is 20) to be created on the table. Each global secondary index in the array includes the following:

• IndexName - The name of the global secondary index. Must be unique only for this table.

• KeySchema - Specifies the key schema for the global secondary index.

• Projection - Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:

• ProjectionType - One of the following:

• KEYS_ONLY - Only the index and primary keys are projected into the index.

• INCLUDE - Only the specified table attributes are projected into the index. The list of projected attributes is in NonKeyAttributes.

• ALL - All of the table attributes are projected into the index.

• NonKeyAttributes - A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided in NonKeyAttributes, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.

• ProvisionedThroughput - The provisioned throughput settings for the global secondary index, consisting of read and write capacity units.