Struct HeapElem

pub struct HeapElem {
    column_orders: Arc<Vec<ColumnOrder>>,
    chunk: DataChunk,
    chunk_idx: usize,
    elem_idx: usize,
    encoded_chunk: Option<Arc<Vec<Vec<u8>>>>,
    estimated_size: usize,
}

Fields

column_orders: Arc<Vec<ColumnOrder>>

chunk: DataChunk

chunk_idx: usize

elem_idx: usize

encoded_chunk: Option<Arc<Vec<Vec<u8>>>>

DataChunk can be encoded to accelerate the comparison. Use risingwave_common::util::encoding_for_comparison::encode_chunk to perform encoding, otherwise the comparison will be performed column by column.

estimated_size: usize

Implementations

impl HeapElem

pub fn new( column_orders: Arc<Vec<ColumnOrder>>, chunk: DataChunk, chunk_idx: usize, elem_idx: usize, encoded_chunk: Option<Arc<Vec<Vec<u8>>>>, ) -> Self

pub fn chunk_idx(&self) -> usize

pub fn elem_idx(&self) -> usize

pub fn chunk(&self) -> &DataChunk

Trait Implementations

impl Clone for HeapElem

fn clone(&self) -> HeapElem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HeapElem

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

Formats the value using the given formatter.

impl EstimateSize for HeapElem

fn estimated_heap_size(&self) -> usize

The estimated heap size of the current struct in bytes.

fn estimated_size(&self) -> usize

where Self: Sized,

The estimated total size of the current struct in bytes, including the estimated_heap_size and the size of Self.

impl Ord for HeapElem

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HeapElem

fn eq(&self, other: &Self) -> 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 PartialOrd for HeapElem

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for HeapElem