pub struct RangeScanner { /* private fields */ }Expand description
A scan operation defined for a single row-range of the columnar data.
Implementations§
Source§impl RangeScanner
We implement the range scan via polling for the next operation to perform, and then posting
the result back to the range scan to make progress.
impl RangeScanner
We implement the range scan via polling for the next operation to perform, and then posting the result back to the range scan to make progress.
This allows us to minimize the amount of logic we duplicate in order to support both synchronous and asynchronous evaluation.
§A note on the API of evaluator functions
Sourcepub fn evaluate<E>(self, evaluator: E) -> VortexResult<Option<Array>>
pub fn evaluate<E>(self, evaluator: E) -> VortexResult<Option<Array>>
Evaluate the RangeScanner operation using a synchronous expression evaluator.
Sourcepub async fn evaluate_async<E, F>(
self,
evaluator: E,
) -> VortexResult<Option<Array>>
pub async fn evaluate_async<E, F>( self, evaluator: E, ) -> VortexResult<Option<Array>>
Evaluate the RangeScanner operation using an async expression evaluator.
Auto Trait Implementations§
impl !Freeze for RangeScanner
impl !RefUnwindSafe for RangeScanner
impl Send for RangeScanner
impl Sync for RangeScanner
impl Unpin for RangeScanner
impl !UnwindSafe for RangeScanner
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type ArchivedMetadata = ()
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_: &<T as ArchivePointee>::ArchivedMetadata,
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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
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Returns whether the given value has been niched. Read more
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fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
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