Enum SchemaConstraintKind 

pub enum SchemaConstraintKind {
    PrimaryKey {
        columns: Vec<String>,
    },
    Unique {
        columns: Vec<String>,
        index_name: String,
    },
    ForeignKey {
        columns: Vec<String>,
        referenced_table: String,
        referenced_columns: Vec<String>,
        on_delete: ForeignKeyAction,
        on_update: ForeignKeyAction,
    },
    Check {
        column_name: Option<String>,
        expression: String,
        ordinal: u32,
    },
}

Complete, catalog-visible constraint metadata.

Variants

PrimaryKey

Fields

columns: Vec<String>

Unique

Fields

columns: Vec<String>

index_name: String

Physical index owned by this UNIQUE constraint.

ForeignKey

Fields

columns: Vec<String>

referenced_table: String

referenced_columns: Vec<String>

on_delete: ForeignKeyAction

on_update: ForeignKeyAction

Check

Fields

column_name: Option<String>

expression: String

ordinal: u32

Monotonic table-local CHECK ordinal used by the public name.

Implementations

impl SchemaConstraintKind

pub fn columns(&self) -> &[String]

Trait Implementations

impl Clone for SchemaConstraintKind

fn clone(&self) -> SchemaConstraintKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchemaConstraintKind

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

Formats the value using the given formatter.

impl Eq for SchemaConstraintKind

impl PartialEq for SchemaConstraintKind

fn eq(&self, other: &SchemaConstraintKind) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SchemaConstraintKind