pub struct ReturnFieldArgs<'a> {
pub arg_fields: &'a [FieldRef],
pub scalar_arguments: &'a [Option<&'a ScalarValue>],
}Expand description
Information about arguments passed to the function
This structure contains metadata about how the function was called such as the type of the arguments, any scalar arguments and if the arguments can (ever) be null
See ScalarUDFImpl::return_field_from_args for more information
Fields§
§arg_fields: &'a [FieldRef]The data types of the arguments to the function
scalar_arguments: &'a [Option<&'a ScalarValue>]Is argument i to the function a scalar (constant)?
If the argument i is not a scalar, it will be None
For example, if a function is called like my_function(column_a, 5)
this field will be [None, Some(ScalarValue::Int32(Some(5)))]
Trait Implementations§
Auto Trait Implementations§
impl<'a> Freeze for ReturnFieldArgs<'a>
impl<'a> !RefUnwindSafe for ReturnFieldArgs<'a>
impl<'a> Send for ReturnFieldArgs<'a>
impl<'a> Sync for ReturnFieldArgs<'a>
impl<'a> Unpin for ReturnFieldArgs<'a>
impl<'a> !UnwindSafe for ReturnFieldArgs<'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