Struct Column 

pub struct Column {
    pub name: String,
    pub dtype: ColumnType,
    pub data: ColumnData,
    pub validity: Option<Vec<u8>>,
    pub len: usize,
}

Columnar storage for a single column

Fields

name: String

Column name (may include dot notation for nested)

dtype: ColumnType

Column data type

data: ColumnData

Raw data buffer

validity: Option<Vec<u8>>

Validity bitmap (1 bit per value, 1 = valid, 0 = null)

len: usize

Number of values

Implementations

impl Column

pub fn new(name: impl Into<String>, dtype: ColumnType) -> Self

Create new empty column

pub fn push(&mut self, value: &SochValue)

Append a value

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

Check if value at index is null

pub fn get(&self, idx: usize) -> Option<SochValue>

Get value at index as SochValue

pub fn memory_usage(&self) -> usize

Get memory usage in bytes

Trait Implementations

impl Clone for Column

fn clone(&self) -> Column

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Column

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

Formats the value using the given formatter.