Struct Partition 

pub struct Partition {
    pub rows: Vec<Row>,
    pub original_indices: Vec<usize>,
    pub column_map: HashMap<String, usize>,
}

A partition of rows for window function evaluation

Fields

rows: Vec<Row>

original_indices: Vec<usize>

Original indices of rows before partitioning/sorting

column_map: HashMap<String, usize>

Column name to index mapping (for resolving named column references)

Implementations

impl Partition

pub fn new(rows: Vec<Row>) -> Self

pub fn with_indices(rows: Vec<Row>, original_indices: Vec<usize>) -> Self

pub fn with_column_map( rows: Vec<Row>, original_indices: Vec<usize>, column_map: HashMap<String, usize>, ) -> Self

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn get_column_index(&self, name: &str) -> Option<usize>

Get column index by name (case-insensitive)

Trait Implementations

impl Clone for Partition

fn clone(&self) -> Partition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Partition

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

Formats the value using the given formatter.