Struct izihawa_tantivy_columnar::BytesColumn

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pub struct BytesColumn { /* private fields */ }
Expand description

Dictionary encoded column.

The column simply gives access to a regular u64-column that, in which the values are term-ordinals.

These ordinals are ids uniquely identify the bytes that are stored in the column. These ordinals are small, and sorted in the same order as the term_ord_column.

Implementations§

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impl BytesColumn

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pub fn empty(num_docs: u32) -> BytesColumn

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pub fn ord_to_bytes(&self, ord: u64, output: &mut Vec<u8>) -> Result<bool>

Fills the given output buffer with the term associated to the ordinal ord.

Returns false if the term does not exist (e.g. term_ord is greater or equal to the overll number of terms).

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pub fn num_rows(&self) -> RowId

Returns the number of rows in the column.

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pub fn term_ords(&self, row_id: RowId) -> impl Iterator<Item = u64> + '_

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pub fn ords(&self) -> &Column<u64>

Returns the column of ordinals

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pub fn num_terms(&self) -> usize

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pub fn dictionary(&self) -> &Dictionary<VoidSSTable>

Trait Implementations§

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impl Clone for BytesColumn

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fn clone(&self) -> BytesColumn

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BytesColumn

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl From<BytesColumn> for DynamicColumn

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fn from(typed_column: BytesColumn) -> Self

Converts to this type from the input type.
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impl From<StrColumn> for BytesColumn

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fn from(str_column: StrColumn) -> BytesColumn

Converts to this type from the input type.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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where T: Any + Send + Sync,

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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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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 more
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where F: FnOnce(&Self) -> bool,

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
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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.