Struct UniqueConstraint 

pub struct UniqueConstraint {
    pub id: u16,
    pub name: String,
    pub columns: Vec<u16>,
}

A multi-column uniqueness constraint (beyond the single-column PRIMARY_KEY flag). Enforced via an existence scan against the read snapshot plus WriteKey::Unique registration at commit (first-committer-wins).

Fields

id: u16

name: String

columns: Vec<u16>

Trait Implementations

impl Clone for UniqueConstraint

fn clone(&self) -> UniqueConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UniqueConstraint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for UniqueConstraint

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for UniqueConstraint

fn eq(&self, other: &UniqueConstraint) -> 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 Serialize for UniqueConstraint

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for UniqueConstraint