Enum FunctionBehavior

pub enum FunctionBehavior {
    Immutable,
    Stable,
    Volatile,
}

These attributes inform the query optimizer about the behavior of the function.

Variants

Immutable

Stable

Volatile

Trait Implementations

impl Clone for FunctionBehavior

fn clone(&self) -> FunctionBehavior

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FunctionBehavior

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

Formats the value using the given formatter.

impl Display for FunctionBehavior

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

Formats the value using the given formatter.

impl Hash for FunctionBehavior

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 FunctionBehavior

fn eq(&self, other: &FunctionBehavior) -> 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 Eq for FunctionBehavior

impl StructuralPartialEq for FunctionBehavior