projectionType

The set of attributes that are projected into the index: + `KEYS_ONLY` - Only the index and primary keys are projected into the index. + `INCLUDE` - In addition to the attributes described in `KEYS_ONLY`, the secondary index will include other non-key attributes that you specify. + `ALL` - All of the table attributes are projected into the index. When using the DynamoDB console, `ALL` is selected by default.