pub struct PruningPredicate { /* private fields */ }Implementations§
Source§impl PruningPredicate
impl PruningPredicate
pub fn try_new(original_expr: &ExprRef) -> Option<Self>
pub fn expr(&self) -> &ExprRef
pub fn required_stats(&self) -> &HashMap<FieldOrIdentity, HashSet<Stat>>
Sourcepub fn evaluate(&self, metadata: &dyn Array) -> VortexResult<Option<ArrayRef>>
pub fn evaluate(&self, metadata: &dyn Array) -> VortexResult<Option<ArrayRef>>
Evaluate this predicate against a per-chunk statistics table.
Returns Ok(None) if any of the required statistics are not present in metadata. If it returns Ok(Some(array)), the array is a boolean array with the same length as the metadata, and a true value means the chunk can be pruned.
Trait Implementations§
Source§impl Clone for PruningPredicate
impl Clone for PruningPredicate
Source§fn clone(&self) -> PruningPredicate
fn clone(&self) -> PruningPredicate
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 PruningPredicate
impl Debug for PruningPredicate
Auto Trait Implementations§
impl Freeze for PruningPredicate
impl !RefUnwindSafe for PruningPredicate
impl Send for PruningPredicate
impl Sync for PruningPredicate
impl Unpin for PruningPredicate
impl !UnwindSafe for PruningPredicate
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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§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 moreSource§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.