Struct ConstraintViolation 

pub struct ConstraintViolation {
    pub name: Option<String>,
    pub schema: Option<String>,
    pub table: Option<String>,
    pub column: Option<String>,
}

The constraint a database error names (#1531), as PostgreSQL reports it.

A unique index is reported under its index name (it has no pg_constraint row). The table is the one PostgreSQL names: for a foreign-key violation that is the referencing table in both directions, so the direction is not recoverable from it. A not-null violation names no constraint, only its column; PostgreSQL 18 catalogues the not-null constraint itself, so its name is resolvable from the column.

Fields

name: Option<String>

The constraint’s (or unique index’s) name, when the error names one.

schema: Option<String>

The schema of the table the error names.

table: Option<String>

The table the error names.

column: Option<String>

The column the error names (a not-null violation’s).

Trait Implementations

impl Clone for ConstraintViolation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintViolation

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

Formats the value using the given formatter.

impl Eq for ConstraintViolation

impl PartialEq for ConstraintViolation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ConstraintViolation