Struct DictionaryColumn 

pub struct DictionaryColumn { /* private fields */ }

A nullable, low-cardinality dictionary string column.

Implementations

impl DictionaryColumn

pub fn len(&self) -> usize

Returns the physical row count including null placeholders.

pub fn is_empty(&self) -> bool

Returns whether the physical array is empty.

pub fn get(&self, row: u32) -> Option<&str>

Decodes a non-null row value.

pub fn codes(&self) -> &DictionaryCodes

Returns the selected physical code array.

pub fn dictionary(&self) -> &StringDictionary

Returns the immutable string dictionary.

pub fn present(&self) -> &DocBitmap

Returns the presence bitmap used by exists and null predicates.

Trait Implementations

impl Clone for DictionaryColumn

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DictionaryColumn

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

Formats the value using the given formatter.

impl Eq for DictionaryColumn

impl PartialEq for DictionaryColumn

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DictionaryColumn