Enum ExprAffinity 

pub enum ExprAffinity {
    None,
    Affinity(TypeAffinity),
}

SQLite affinity attached to an expression for comparison purposes.

This deliberately distinguishes an expression with no affinity (for example, a literal or most computed expressions) from an expression with genuine TypeAffinity::Blob affinity. Although both cases avoid storage conversion in many comparisons, they combine differently with the other operand’s affinity under SQLite’s comparison rules.

Variants

None

The expression has no affinity.

Affinity(TypeAffinity)

The expression carries the specified SQLite type affinity.

Trait Implementations

impl Clone for ExprAffinity

fn clone(&self) -> ExprAffinity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ExprAffinity

impl Debug for ExprAffinity

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

Formats the value using the given formatter.

impl Eq for ExprAffinity

impl Hash for ExprAffinity

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ExprAffinity

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExprAffinity