pub struct Function {
pub name: ObjectName,
pub args: FunctionArguments,
pub filter: Option<Box<Expr>>,
pub null_treatment: Option<NullTreatment>,
pub over: Option<WindowType>,
pub within_group: Vec<OrderByExpr>,
}
Expand description
A function call
Fields§
§name: ObjectName
§args: FunctionArguments
The arguments to the function, including any options specified within the delimiting parentheses.
filter: Option<Box<Expr>>
e.g. x > 5
in COUNT(x) FILTER (WHERE x > 5)
null_treatment: Option<NullTreatment>
Indicates how NULL
s should be handled in the calculation.
Example:
FIRST_VALUE( <expr> ) [ { IGNORE | RESPECT } NULLS ] OVER ...
over: Option<WindowType>
The OVER
clause, indicating a window function call.
within_group: Vec<OrderByExpr>
A clause used with certain aggregate functions to control the ordering within grouped sets before the function is applied.
Syntax:
<aggregate_function>(expression) WITHIN GROUP (ORDER BY key [ASC | DESC], ...)
Trait Implementations§
source§impl<'de> Deserialize<'de> for Function
impl<'de> Deserialize<'de> for Function
source§fn deserialize<__D>(
__deserializer: __D,
) -> Result<Function, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D,
) -> Result<Function, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl Ord for Function
impl Ord for Function
source§impl PartialOrd for Function
impl PartialOrd for Function
source§impl Serialize for Function
impl Serialize for Function
source§fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl Eq for Function
impl StructuralPartialEq for Function
Auto Trait Implementations§
impl Freeze for Function
impl RefUnwindSafe for Function
impl Send for Function
impl Sync for Function
impl Unpin for Function
impl UnwindSafe for Function
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<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)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<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
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