pub struct ColumnBlock {
pub cumulative_docs: u32,
pub num_docs: u32,
pub data: OwnedBytes,
pub offset_data: OwnedBytes,
pub value_data: OwnedBytes,
pub dict: Option<TextDictReader>,
pub ordinal_map: Vec<u32>,
pub raw_dict: OwnedBytes,
}Expand description
One independently-decodable block within a blocked column.
All byte slices are zero-copy borrows from the mmap’d .fast file.
Fields§
§cumulative_docs: u32Number of docs before this block (for doc_id → block lookup).
num_docs: u32Number of docs in this block.
data: OwnedBytesAuto-codec encoded data for this block (single-value or raw multi-value region).
offset_data: OwnedBytesFor multi-value blocks: offset sub-column.
value_data: OwnedBytesFor multi-value blocks: value sub-column.
dict: Option<TextDictReader>Per-block text dictionary (text columns only).
ordinal_map: Vec<u32>Block-local ordinal → global ordinal mapping (text columns with >1 block).
raw_dict: OwnedBytesRaw dictionary bytes for this block (for merge: memcpy).
Auto Trait Implementations§
impl Freeze for ColumnBlock
impl RefUnwindSafe for ColumnBlock
impl Send for ColumnBlock
impl Sync for ColumnBlock
impl Unpin for ColumnBlock
impl UnwindSafe for ColumnBlock
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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Source§fn borrow_mut(&mut self) -> &mut T
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Mutably borrows from an owned value. Read more
Source§impl<T> IntoEither for T
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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
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if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
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Source§impl<SS, SP> SupersetOf<SS> for SPwhere
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impl<SS, SP> SupersetOf<SS> for SPwhere
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fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
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Checks if
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Use with care! Same as
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fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.