Enum ExecMode 

pub enum ExecMode {
    Sequential,
    Parallel {
        threads: Option<usize>,
        partitions: Option<usize>,
    },
}

Execution mode for a plan.

• Sequential runs in a single thread.
• Parallel runs with optional thread count and partition count hints. If threads is Some(n), a global rayon thread pool with n threads is installed for this process (first one wins; later calls are no-ops). If partitions is None, the planner’s suggestion (if any) is used, otherwise Runner::default_partitions.

Variants

Sequential

Single-threaded execution.

Parallel

Parallel execution using rayon.

Fields

threads: Option<usize>

Optional rayon worker thread count.

partitions: Option<usize>

Optional number of source partitions.

Trait Implementations

impl Clone for ExecMode

fn clone(&self) -> ExecMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecMode

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

Formats the value using the given formatter.

impl Copy for ExecMode