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BufferInner

parquet::arrow::record_reader::definition_levels

Enum BufferInner

enum BufferInner {
    Full {
        levels: Vec<i16>,
        nulls: BooleanBufferBuilder,
        max_level: i16,
    },
    Mask {
        nulls: BooleanBufferBuilder,
    },
}

Variants§

Full

Compute levels and null mask

Fields

§levels: Vec<i16>

§nulls: BooleanBufferBuilder

§max_level: i16

Mask

Only compute null bitmask - requires max level to be 1

This is an optimisation for the common case of a nullable scalar column, as decoding the definition level data is only required when decoding nested structures

Fields

§nulls: BooleanBufferBuilder

Auto Trait Implementations§

impl !Freeze for BufferInner

impl RefUnwindSafe for BufferInner

impl Send for BufferInner

impl Sync for BufferInner

impl Unpin for BufferInner

impl UnwindSafe for BufferInner

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

impl<T> Ungil for T
where T: Send,