pub struct VersionedIndex { /* private fields */ }Expand description
Pre-built versioned index mapping encoded key bytes to a BTreeMap
of version timestamps to row indices. Supports point-in-time lookups
via probe_at_time for temporal joins.
Implementations§
Source§impl VersionedIndex
impl VersionedIndex
Sourcepub fn build(
batch: &RecordBatch,
key_indices: &[usize],
version_col_idx: usize,
) -> Result<Self>
pub fn build( batch: &RecordBatch, key_indices: &[usize], version_col_idx: usize, ) -> Result<Self>
Builds a versioned index over key_indices and version_col_idx
columns in batch.
Uses Arrow’s RowConverter for binary-comparable key encoding.
Null keys and null version timestamps are skipped.
§Errors
Returns an error if key encoding or timestamp extraction fails.
Trait Implementations§
Source§impl Default for VersionedIndex
impl Default for VersionedIndex
Source§fn default() -> VersionedIndex
fn default() -> VersionedIndex
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for VersionedIndex
impl RefUnwindSafe for VersionedIndex
impl Send for VersionedIndex
impl Sync for VersionedIndex
impl Unpin for VersionedIndex
impl UnsafeUnpin for VersionedIndex
impl UnwindSafe for VersionedIndex
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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,
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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>
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Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
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if into_left is true.
Converts self into a Right variant of Either<Self, Self>
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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>
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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
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