Trait polars_plan::logical_plan::OptimizationRule

source · [−]
pub trait OptimizationRule {
    fn optimize_plan(
        &mut self,
        _lp_arena: &mut Arena<ALogicalPlan>,
        _expr_arena: &mut Arena<AExpr>,
        _node: Node
    ) -> Option<ALogicalPlan> { ... }
    fn optimize_expr(
        &self,
        _expr_arena: &mut Arena<AExpr>,
        _expr_node: Node,
        _lp_arena: &Arena<ALogicalPlan>,
        _lp_node: Node
    ) -> Option<AExpr> { ... }
}

Provided Methods

Optimize (subplan) in LogicalPlan

  • lp_arena - LogicalPlan memory arena
  • expr_arena - Expression memory arena
  • node - node of the current LogicalPlan node

Implementors