Struct ParentRequirements 

pub struct ParentRequirements {
    ordering_requirement: Option<OrderingRequirements>,
    fetch: Option<usize>,
}

This is a “data class” we use within the EnforceSorting rule to push down SortExec in the plan. In some cases, we can reduce the total computational cost by pushing down SortExecs through some executors. The object carries the parent required ordering and the (optional) fetch value of the parent node as its data.

Fields

ordering_requirement: Option<OrderingRequirements>

fetch: Option<usize>

Trait Implementations

impl Clone for ParentRequirements

fn clone(&self) -> ParentRequirements

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParentRequirements

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ParentRequirements

fn default() -> ParentRequirements

Returns the “default value” for a type.