Enum TableConstraint 

pub enum TableConstraint {
    Unique(Vec<Identifier>),
    Check(Box<Expression>),
    PrimaryKey(Vec<Identifier>),
}

Table-level constraint (applied to the table rather than a single column)

Variants

Unique(Vec<Identifier>)

UNIQUE(col1, col2, …)

Check(Box<Expression>)

CHECK(expression) - boxed to reduce enum size

PrimaryKey(Vec<Identifier>)

PRIMARY KEY(col1, col2, …) - composite primary key (not yet fully supported)

Trait Implementations

impl Clone for TableConstraint

fn clone(&self) -> TableConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableConstraint

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

Formats the value using the given formatter.

impl Display for TableConstraint

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

Formats the value using the given formatter.

impl PartialEq for TableConstraint

fn eq(&self, other: &TableConstraint) -> 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 StructuralPartialEq for TableConstraint