Struct LimitOptions 

pub struct LimitOptions {
    pub limit: usize,
    pub descending: Option<bool>,
}

Configuration for limit-based optimizations in aggregation

Fields

limit: usize

The maximum number of rows to return

descending: Option<bool>

Optional ordering direction (true = descending, false = ascending) This is used for TopK aggregation to maintain a priority queue with the correct ordering

Implementations

impl LimitOptions

pub fn new(limit: usize) -> Self

Create a new LimitOptions with a limit and no specific ordering

pub fn new_with_order(limit: usize, descending: bool) -> Self

Create a new LimitOptions with a limit and ordering direction

pub fn limit(&self) -> usize

pub fn descending(&self) -> Option<bool>

Trait Implementations

impl Clone for LimitOptions

fn clone(&self) -> LimitOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LimitOptions

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

Formats the value using the given formatter.

impl PartialEq for LimitOptions

fn eq(&self, other: &LimitOptions) -> 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 Copy for LimitOptions

impl Eq for LimitOptions

impl StructuralPartialEq for LimitOptions