Struct First 

pub struct First;

Nulls sort below every value, as SQL’s NULLS FIRST: the policy NullOrder::First, named when the program is compiled.

Trait Implementations

impl Clone for First

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for First

impl Debug for First

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

Formats the value using the given formatter.

impl Default for First

fn default() -> Self

Returns the “default value” for a type.

impl Eq for First

impl Hash for First

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl NullPolicy for First

const ORDER: NullOrder = NullOrder::First

Where a space of this policy places nulls.

impl PartialEq for First

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for First