pub struct MaxFunction;
Expand description
MAX(column) - finds maximum value
Trait Implementations§
Source§impl AggregateFunction for MaxFunction
impl AggregateFunction for MaxFunction
Source§fn init(&self) -> AggregateState
fn init(&self) -> AggregateState
Initialize the aggregation state
Source§fn accumulate(
&self,
state: &mut AggregateState,
value: &DataValue,
) -> Result<()>
fn accumulate( &self, state: &mut AggregateState, value: &DataValue, ) -> Result<()>
Add a value to the aggregation
Source§fn finalize(&self, state: AggregateState) -> DataValue
fn finalize(&self, state: AggregateState) -> DataValue
Finalize and return the result
Source§fn requires_numeric(&self) -> bool
fn requires_numeric(&self) -> bool
Check if this function requires numeric input
Auto Trait Implementations§
impl Freeze for MaxFunction
impl RefUnwindSafe for MaxFunction
impl Send for MaxFunction
impl Sync for MaxFunction
impl Unpin for MaxFunction
impl UnwindSafe for MaxFunction
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> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
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