Enum datafusion::prelude::Partitioning

pub enum Partitioning {
    RoundRobinBatch(usize),
    Hash(Vec<Expr>, usize),
}

Logical partitioning schemes supported by the repartition operator.

Variants

RoundRobinBatch(usize)

Allocate batches using a round-robin algorithm and the specified number of partitions

Tuple Fields of RoundRobinBatch

0: usize

Hash(Vec<Expr>, usize)

Allocate rows based on a hash of one of more expressions and the specified number of partitions. This partitioning scheme is not yet fully supported. See https://issues.apache.org/jira/browse/ARROW-11011

Tuple Fields of Hash

0: Vec<Expr>1: usize

Trait Implementations

impl Clone for Partitioning

fn clone(&self) -> Partitioning

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Partitioning

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.