Struct datafusion_optimizer::optimizer::Optimizer

pub struct Optimizer {
    pub rules: Vec<Arc<dyn OptimizerRule + Send + Sync>>,
}

A rule-based optimizer.

Fields

rules: Vec<Arc<dyn OptimizerRule + Send + Sync>>

All rules to apply

Implementations

impl Optimizer

pub fn new(config: &OptimizerConfig) -> Self

Create a new optimizer using the recommended list of rules

pub fn with_rules(rules: Vec<Arc<dyn OptimizerRule + Send + Sync>>) -> Self

Create a new optimizer with the given rules

pub fn optimize<F>(
    &self,
    plan: &LogicalPlan,
    optimizer_config: &mut OptimizerConfig,
    observer: F
) -> Result<LogicalPlan>where
    F: FnMut(&LogicalPlan, &dyn OptimizerRule),

Optimizes the logical plan by applying optimizer rules, and invoking observer function after each call

Trait Implementations

impl Clone for Optimizer

fn clone(&self) -> Optimizer

Returns a copy of the value.

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

Performs copy-assignment from source.