Enum BatchType

pub enum BatchType {
    Logged = 0,
    Unlogged = 1,
    Counter = 2,
}

The type of a batch.

Variants

Logged = 0

By default, all operations in the batch are performed as logged, to ensure all mutations eventually complete (or none will). See the notes on UNLOGGED batches for more details. A LOGGED batch to a single partition will be converted to an UNLOGGED batch as an optimization.

Unlogged = 1

By default, ScyllaDB uses a batch log to ensure all operations in a batch eventually complete or none will (note, however, that operations are only isolated within a single partition). There is a performance penalty for batch atomicity when a batch spans multiple partitions. If you do not want to incur this penalty, you can tell Scylla to skip the batchlog with the UNLOGGED option. If the UNLOGGED option is used, a failed batch might leave the batch only partly applied.

Counter = 2

Use the COUNTER option for batched counter updates. Unlike other updates in ScyllaDB, counter updates are not idempotent.

Trait Implementations

impl Clone for BatchType

fn clone(&self) -> BatchType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl TryFrom<u8> for BatchType

type Error = BatchTypeParseError

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for BatchType