Struct mz_persist_types::arrow::ArrayIdx

pub struct ArrayIdx<'a> {
    pub idx: usize,
    pub array: &'a ArrayOrd,
}

A struct representing a particular entry in a particular array. Most useful for its Ord implementation, which can compare entire rows across similarly-typed arrays.

It is an error to compare indices from arrays with different types, with one exception: it is valid to compare two StructArrays, one of which is a prefix of the other… in which case we’ll compare the values on that subset of the fields, and the shorter of the two structs will compare less if they’re otherwise equal.

Fields

idx: usize

An index into a particular array.

array: &'a ArrayOrd

The particular array.

Implementations

impl<'a> ArrayIdx<'a>

pub fn goodbytes(&self) -> usize

Returns the rough amount of space required for this entry in bytes. (Not counting nulls, dictionary encoding, or other space optimizations.)

Trait Implementations

impl<'a> Clone for ArrayIdx<'a>

fn clone(&self) -> ArrayIdx<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ArrayIdx<'a>

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

Formats the value using the given formatter.

impl<'a> Ord for ArrayIdx<'a>

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 + PartialOrd,

Restrict a value to a certain interval.

impl<'a> PartialEq for ArrayIdx<'a>

fn eq(&self, other: &ArrayIdx<'_>) -> 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<'a> PartialOrd for ArrayIdx<'a>

fn partial_cmp(&self, other: &ArrayIdx<'_>) -> 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<'a> Copy for ArrayIdx<'a>

impl<'a> Eq for ArrayIdx<'a>