Trait Executor

pub trait Executor: Send {
    // Required method
    fn execute(&mut self, cache: &mut ExecutionState) -> PolarsResult<DataFrame>;
}

Executors will evaluate physical expressions and collect them in a DataFrame.

Executors have other executors as input. By having a tree of executors we can execute the physical plan until the last executor is evaluated.

Required Methods

fn execute(&mut self, cache: &mut ExecutionState) -> PolarsResult<DataFrame>

Trait Implementations

impl Default for Box<dyn Executor>

fn default() -> Self

Returns the “default value” for a type.

Implementors