Enum NullsPosition 

#[non_exhaustive]
pub enum NullsPosition {
    First,
    Last,
}

Where nulls are placed relative to non-null values.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

First

Nulls sort before non-null values.

Last

Nulls sort after non-null values.

Implementations

impl NullsPosition

pub fn from_token(token: &str) -> Result<Self>

Parse the wire token ("first" / "last") shared by every binding.

Errors

CoreError::Sort for any other token.

Trait Implementations

impl Clone for NullsPosition

fn clone(&self) -> NullsPosition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NullsPosition

impl Debug for NullsPosition

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

Formats the value using the given formatter.

impl Eq for NullsPosition

impl PartialEq for NullsPosition

fn eq(&self, other: &NullsPosition) -> 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 NullsPosition