Trait ReduceParent 

pub trait ReduceParent<Parent: VTable, const CHILD_IDX: usize>: VTable {
    // Required method
    fn reduce_parent(
        array: &Self::Array,
        parent: &Parent::Array,
    ) -> VortexResult<Option<ArrayRef>>;
}

An optimizer rule that tries to reduce/replace a parent array where the implementer is a child array in the CHILD_IDX position of the parent array.

Required Methods

fn reduce_parent( array: &Self::Array, parent: &Parent::Array, ) -> VortexResult<Option<ArrayRef>>

Try to reduce/replace the given parent array based on this child array.

If no reduction is possible, return None.

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