Struct VectorGroup 

pub struct VectorGroup {
    pub columns: HashMap<String, TypedVector>,
    pub multiplicity: u64,
}

A vector group: one row-set with named typed columns and a multiplicity.

In factorized execution, multiplicity represents the number of implicit copies of this group without materializing them.

Fields

columns: HashMap<String, TypedVector>

Named column vectors. All vectors must have the same length.

multiplicity: u64

Logical multiplicity — how many times this group is counted.

Implementations

impl VectorGroup

pub fn new(multiplicity: u64) -> Self

pub fn add_column(&mut self, name: String, vec: TypedVector)

pub fn len(&self) -> usize

Number of rows in this group (length of any column; 0 if empty).

pub fn is_empty(&self) -> bool

pub fn has_column(&self, name: &str) -> bool

pub fn get_value(&self, col: &str, row: usize) -> Option<Value>

Get value at row index from column name.

pub fn logical_row_count(&self) -> u64

Logical row count (len * multiplicity).

Trait Implementations

impl Clone for VectorGroup

fn clone(&self) -> VectorGroup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VectorGroup

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

Formats the value using the given formatter.