Struct WindowSpec 

pub struct WindowSpec {
    pub partition_by: Vec<usize>,
    pub order_by: Vec<OrderKey>,
}

The OVER (PARTITION BY ... ORDER BY ...) specification.

Fields

partition_by: Vec<usize>

Columns used to partition rows (empty means a single partition).

order_by: Vec<OrderKey>

Ordering keys applied within each partition.

Implementations

impl WindowSpec

pub fn new(partition_by: Vec<usize>, order_by: Vec<OrderKey>) -> Self

Build a spec from partition and ordering keys.

pub fn ordered(order_by: Vec<OrderKey>) -> Self

A spec with no partitioning and the given ordering keys.

Trait Implementations

impl Clone for WindowSpec

fn clone(&self) -> WindowSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowSpec

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

Formats the value using the given formatter.

impl Default for WindowSpec

fn default() -> WindowSpec

Returns the “default value” for a type.

impl PartialEq for WindowSpec

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for WindowSpec