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

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

Formats the value using the given formatter.

impl Hash for ConstraintUsingIndex

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 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 Eq for ConstraintUsingIndex

impl StructuralPartialEq for ConstraintUsingIndex