Trait polars::prelude::Executor

pub trait Executor: Send + Sync {
    fn execute(
        &mut self, 
        cache: &ExecutionState
    ) -> Result<DataFrame, PolarsError>;
}

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: &ExecutionState) -> Result<DataFrame, PolarsError>

Implementations on Foreign Types

impl Executor for ParquetExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for GroupByExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for MeltExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for CsvExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for DataFrameExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for StandardExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for SliceExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for PartitionGroupByExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for CacheExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for JoinExec

pub fn execute(
    &'a mut self,
    state: &'a ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for FilterExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

impl Executor for StackExec

pub fn execute(
    &mut self,
    state: &ExecutionState
) -> Result<DataFrame, PolarsError>

Implementors