Enum datafusion::sql::sqlparser::ast::FunctionBehavior
source · pub enum FunctionBehavior {
Immutable,
Stable,
Volatile,
}
Expand description
These attributes inform the query optimizer about the behavior of the function.
Variants§
Trait Implementations§
source§impl Clone for FunctionBehavior
impl Clone for FunctionBehavior
source§fn clone(&self) -> FunctionBehavior
fn clone(&self) -> FunctionBehavior
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for FunctionBehavior
impl Debug for FunctionBehavior
source§impl Display for FunctionBehavior
impl Display for FunctionBehavior
source§impl Hash for FunctionBehavior
impl Hash for FunctionBehavior
source§impl Ord for FunctionBehavior
impl Ord for FunctionBehavior
source§fn cmp(&self, other: &FunctionBehavior) -> Ordering
fn cmp(&self, other: &FunctionBehavior) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq for FunctionBehavior
impl PartialEq for FunctionBehavior
source§fn eq(&self, other: &FunctionBehavior) -> bool
fn eq(&self, other: &FunctionBehavior) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for FunctionBehavior
impl PartialOrd for FunctionBehavior
source§fn partial_cmp(&self, other: &FunctionBehavior) -> Option<Ordering>
fn partial_cmp(&self, other: &FunctionBehavior) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moresource§impl Visit for FunctionBehavior
impl Visit for FunctionBehavior
source§impl VisitMut for FunctionBehavior
impl VisitMut for FunctionBehavior
fn visit<V>(&mut self, visitor: &mut V) -> ControlFlow<<V as VisitorMut>::Break>where
V: VisitorMut,
impl Eq for FunctionBehavior
impl StructuralPartialEq for FunctionBehavior
Auto Trait Implementations§
impl Freeze for FunctionBehavior
impl RefUnwindSafe for FunctionBehavior
impl Send for FunctionBehavior
impl Sync for FunctionBehavior
impl Unpin for FunctionBehavior
impl UnwindSafe for FunctionBehavior
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more