Struct NullBitmap 

pub struct NullBitmap { /* private fields */ }

A bit-packed null bitmap. Bit i is set (1) when row i is NULL.

Stored as a Vec<u64> where word i/64 bit i%64 represents row i.

Implementations

impl NullBitmap

pub fn with_len(len: usize) -> Self

Create a bitmap with len bits, all clear (non-null).

pub fn set_null(&mut self, i: usize)

Set bit i (mark row i as null).

pub fn is_null(&self, i: usize) -> bool

Return true if row i is null.

pub fn len(&self) -> usize

Number of rows represented.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for NullBitmap

fn clone(&self) -> NullBitmap

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NullBitmap

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

Formats the value using the given formatter.

impl Default for NullBitmap

fn default() -> NullBitmap

Returns the “default value” for a type.