Enum UpsertConstraint 

pub enum UpsertConstraint {
    Any,
    OwnKey,
    Index(usize),
}

The constraint an ON CONFLICT clause names.

An index by position, not a set of columns. A table may hold a partial unique index and a plain one over the same columns, or two expression indexes over the same column, and a conflict target picks exactly one of them. Comparing column sets could not tell them apart, so the clause that matched was the first one that happened to share the columns.

Variants

Any

No target was written, so the clause answers a conflict on any constraint.

OwnKey

The table’s own key: the rowid, or the primary key of a WITHOUT ROWID table.

Index(usize)

The unique index at this position in TableInfo::indexes.

Trait Implementations

impl Clone for UpsertConstraint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UpsertConstraint

impl Debug for UpsertConstraint

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

Formats the value using the given formatter.

impl Eq for UpsertConstraint

impl PartialEq for UpsertConstraint

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for UpsertConstraint