Enum Distinct

pub enum Distinct {
    All,
    Distinct,
    DistinctOn(Vec<Expr>),
}

An ALL, DISTINCT or DISTINCT ON (expr, ...) after SELECT.

Variants

All

An optional parameter that returns all matching rows.

Distinct

A parameter that removes duplicates from the result-set.

DistinctOn(Vec<Expr>)

An optional parameter that eliminates duplicate data based on the expressions.

Implementations

impl Distinct

pub const fn is_all(&self) -> bool

pub const fn is_distinct(&self) -> bool

Trait Implementations

impl Clone for Distinct

fn clone(&self) -> Distinct

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Distinct

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

Formats the value using the given formatter.

impl Default for Distinct

fn default() -> Distinct

Returns the “default value” for a type.

impl Display for Distinct

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

Formats the value using the given formatter.

impl Hash for Distinct

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 PartialEq for Distinct

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Distinct

impl StructuralPartialEq for Distinct