risingwave_frontend::optimizer::plan_node

Trait PlanTreeNodeBinary

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

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

See PlanTreeNode

Required Methods§

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fn left(&self) -> PlanRef

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fn right(&self) -> PlanRef

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

Provided Methods§

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fn rewrite_with_left_right( &self, _left: PlanRef, _left_col_change: ColIndexMapping, _right: PlanRef, _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

Object Safety§

This trait is not object safe.

Implementors§