pub fn normalize_sort_requirement(
sort_requirement: PhysicalSortRequirement,
eq_properties: &[EquivalentClass],
ordering_eq_properties: &[OrderingEquivalentClass]
) -> PhysicalSortRequirementpub fn normalize_sort_requirement(
sort_requirement: PhysicalSortRequirement,
eq_properties: &[EquivalentClass],
ordering_eq_properties: &[OrderingEquivalentClass]
) -> PhysicalSortRequirement