risingwave_frontend::optimizer::plan_node::plan_tree_node

Trait PlanTreeNodeBinary

Source 
pub trait PlanTreeNodeBinary<C: ConventionMarker> {
    // Required methods
    fn left(&self) -> PlanRef<C>;
    fn right(&self) -> PlanRef<C>;
    fn clone_with_left_right(&self, left: PlanRef<C>, right: PlanRef<C>) -> Self;

    // Provided method
    fn rewrite_with_left_right(
        &self,
        _left: PlanRef<C>,
        _left_col_change: ColIndexMapping,
        _right: PlanRef<C>,
        _right_col_change: ColIndexMapping,
    ) -> (Self, ColIndexMapping)
       where Self: Sized { ... }
}
Expand description

See PlanTreeNode

Required Methods§

Source

fn left(&self) -> PlanRef<C>

Source

fn right(&self) -> PlanRef<C>

Source

fn clone_with_left_right(&self, left: PlanRef<C>, right: PlanRef<C>) -> Self

Provided Methods§

Source

fn rewrite_with_left_right( &self, _left: PlanRef<C>, _left_col_change: ColIndexMapping, _right: PlanRef<C>, _right_col_change: ColIndexMapping, ) -> (Self, ColIndexMapping)
where Self: Sized,

Rewrites the plan node according to the schema change of its input nodes during rewriting.

This function can be used to implement prune_col or logical_rewrite_for_stream

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§