pub struct StateFieldsArgs<'a> {
pub name: &'a str,
pub input_types: &'a [DataType],
pub return_type: &'a DataType,
pub ordering_fields: &'a [Field],
pub is_distinct: bool,
}Expand description
StateFieldsArgs contains information about the fields that an
aggregate function’s accumulator should have. Used for AggregateUDFImpl::state_fields.
Fields§
§name: &'a strThe name of the aggregate function.
input_types: &'a [DataType]The input types of the aggregate function.
return_type: &'a DataTypeThe return type of the aggregate function.
ordering_fields: &'a [Field]The ordering fields of the aggregate function.
is_distinct: boolWhether the aggregate function is distinct.
Auto Trait Implementations§
impl<'a> Freeze for StateFieldsArgs<'a>
impl<'a> RefUnwindSafe for StateFieldsArgs<'a>
impl<'a> Send for StateFieldsArgs<'a>
impl<'a> Sync for StateFieldsArgs<'a>
impl<'a> Unpin for StateFieldsArgs<'a>
impl<'a> UnwindSafe for StateFieldsArgs<'a>
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> 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