Struct PhysicalPlan 

pub struct PhysicalPlan {
    pub operator: Box<dyn Operator>,
    pub columns: Vec<String>,
    pub adaptive_context: Option<AdaptiveContext>,
}

A physical plan ready for execution.

Fields

operator: Box<dyn Operator>

The root physical operator.

columns: Vec<String>

Column names for the result.

adaptive_context: Option<AdaptiveContext>

Adaptive execution context with cardinality estimates.

When adaptive execution is enabled, this context contains estimated cardinalities at various checkpoints in the plan. During execution, actual row counts are recorded and compared against estimates.

Implementations

impl PhysicalPlan

pub fn columns(&self) -> &[String]

Returns the column names.

pub fn into_operator(self) -> Box<dyn Operator>

Consumes the plan and returns the operator.

pub fn adaptive_context(&self) -> Option<&AdaptiveContext>

Returns the adaptive context, if adaptive execution is enabled.

pub fn take_adaptive_context(&mut self) -> Option<AdaptiveContext>

Takes ownership of the adaptive context.