public enum Storage.ShardingStrategy extends Enum<Storage.ShardingStrategy> implements ProtocolMessageEnumStrategy for distributing data among multiple streams in a read session.
Protobuf enum google.cloud.bigquery.storage.v1beta1.ShardingStrategy
Implements
ProtocolMessageEnumStatic Fields | |
|---|---|
| Name | Description |
BALANCED | Assigns data to each stream such that roughly the same number of rows can be read from each stream. Because the server-side unit for assigning data is collections of rows, the API does not guarantee that each stream will return the same number or rows. Additionally, the limits are enforced based on the number of pre-filtering rows, so some filters can lead to lopsided assignments. |
BALANCED_VALUE | Assigns data to each stream such that roughly the same number of rows can be read from each stream. Because the server-side unit for assigning data is collections of rows, the API does not guarantee that each stream will return the same number or rows. Additionally, the limits are enforced based on the number of pre-filtering rows, so some filters can lead to lopsided assignments. |
LIQUID | Assigns data to each stream based on the client's read rate. The faster the client reads from a stream, the more data is assigned to the stream. In this strategy, it's possible to read all data from a single stream even if there are other streams present. |
LIQUID_VALUE | Assigns data to each stream based on the client's read rate. The faster the client reads from a stream, the more data is assigned to the stream. In this strategy, it's possible to read all data from a single stream even if there are other streams present. |
SHARDING_STRATEGY_UNSPECIFIED | Same as LIQUID. |
SHARDING_STRATEGY_UNSPECIFIED_VALUE | Same as LIQUID. |
UNRECOGNIZED | |
Static Methods | |
|---|---|
| Name | Description |
forNumber(int value) | |
getDescriptor() | |
internalGetValueMap() | |
valueOf(Descriptors.EnumValueDescriptor desc) | |
valueOf(int value) | Deprecated. Use #forNumber(int) instead. |
valueOf(String name) | |
values() | |
Methods | |
|---|---|
| Name | Description |
getDescriptorForType() | |
getNumber() | |
getValueDescriptor() | |