The role that this key attribute will assume:
-
HASH
- partition key
-
RANGE
- sort key
The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from
DynamoDB' usage of an internal hash function to evenly distribute data items across partitions, based on their
partition key values.
The sort key of an item is also known as its range attribute. The term "range attribute" derives from the
way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key
value.
If the service returns an enum value that is not available in the current SDK version,
#keyType will
return
KeyType#UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from
#keyTypeAsString.