Struct CheckConstraint 

pub struct CheckConstraint {
    pub name: Option<Ident>,
    pub expr: Box<Expr>,
    pub enforced: Option<bool>,
}

A CHECK constraint ([ CONSTRAINT <name> ] CHECK (<expr>) [[NOT] ENFORCED]).

Fields

name: Option<Ident>

Optional constraint name.

expr: Box<Expr>

The boolean expression the CHECK constraint enforces.

enforced: Option<bool>

MySQL-specific ENFORCED / NOT ENFORCED flag. https://dev.mysql.com/doc/refman/8.4/en/create-table.html

Trait Implementations

impl Clone for CheckConstraint

fn clone(&self) -> CheckConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckConstraint

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

Formats the value using the given formatter.

impl Display for CheckConstraint

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

Formats the value using the given formatter.

impl From<CheckConstraint> for ColumnOption

fn from(c: CheckConstraint) -> ColumnOption

Converts to this type from the input type.

impl From<CheckConstraint> for TableConstraint

fn from(constraint: CheckConstraint) -> TableConstraint

Converts to this type from the input type.

impl Hash for CheckConstraint

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 CheckConstraint

fn cmp(&self, other: &CheckConstraint) -> 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 CheckConstraint

fn eq(&self, other: &CheckConstraint) -> 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 CheckConstraint

fn partial_cmp(&self, other: &CheckConstraint) -> 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 CheckConstraint

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 Visit for CheckConstraint

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 CheckConstraint

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

where V: VisitorMut,

Mutably visit this node with the provided VisitorMut.

impl Eq for CheckConstraint

impl StructuralPartialEq for CheckConstraint