Struct ConstraintUsingIndex 

pub struct ConstraintUsingIndex {
    pub name: Option<Ident>,
    pub index_name: Ident,
    pub characteristics: Option<ConstraintCharacteristics>,
}

PostgreSQL constraint that promotes an existing unique index to a table constraint.

[ CONSTRAINT constraint_name ] { UNIQUE | PRIMARY KEY } USING INDEX index_name [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]

See https://www.postgresql.org/docs/current/sql-altertable.html

Fields

name: Option<Ident>

Optional constraint name.

index_name: Ident

The name of the existing unique index to promote.

characteristics: Option<ConstraintCharacteristics>

Optional characteristics like DEFERRABLE.

Implementations

impl ConstraintUsingIndex

pub fn fmt_with_keyword( &self, f: &mut Formatter<'_>, keyword: &str, ) -> Result<(), Error>

Format as [CONSTRAINT name] <keyword> USING INDEX index_name [characteristics].

Trait Implementations

impl Clone for ConstraintUsingIndex

fn clone(&self) -> ConstraintUsingIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintUsingIndex

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

Formats the value using the given formatter.

impl Eq for ConstraintUsingIndex

impl Hash for ConstraintUsingIndex

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

where __H: Hasher,

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 Ord for ConstraintUsingIndex

fn cmp(&self, other: &ConstraintUsingIndex) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ConstraintUsingIndex

fn eq(&self, other: &ConstraintUsingIndex) -> 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 PartialOrd for ConstraintUsingIndex

fn partial_cmp(&self, other: &ConstraintUsingIndex) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Spanned for ConstraintUsingIndex

fn span(&self) -> Span

Return the Span (the minimum and maximum Location) for this AST node, by recursively combining the spans of its children.

impl StructuralPartialEq for ConstraintUsingIndex

impl Visit for ConstraintUsingIndex

fn visit<V>(&self, visitor: &mut V) -> ControlFlow<<V as Visitor>::Break>

where V: Visitor,

Visit this node with the provided Visitor.

impl VisitMut for ConstraintUsingIndex

fn visit<V>(&mut self, visitor: &mut V) -> ControlFlow<<V as VisitorMut>::Break>

where V: VisitorMut,

Mutably visit this node with the provided VisitorMut.