Struct ColumnVector 

pub struct ColumnVector {
    pub data: Vec<u64>,
    pub nulls: NullBitmap,
    pub col_id: u32,
}

A single column of raw u64 values with a null bitmap.

SparrowDB encodes every value type (int, float, bool, string pointer) as a raw u64. Decoding happens only at the final projection stage.

Fields

data: Vec<u64>

Raw encoded values — one entry per row.

nulls: NullBitmap

Null bitmap — bit i set means data[i] is NULL.

col_id: u32

Which property column this vector represents (matches col_id_of encoding).

Implementations

impl ColumnVector

pub fn zeroed(col_id: u32, len: usize) -> Self

Create a zero-filled column for len rows with no nulls.

pub fn from_data(col_id: u32, data: Vec<u64>) -> Self

Create a column from a pre-populated data vector.

pub fn len(&self) -> usize

Number of rows in this column.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for ColumnVector

fn clone(&self) -> ColumnVector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnVector

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

Formats the value using the given formatter.