Struct datafusion_expr::expr::Sort

pub struct Sort {
    pub expr: Box<Expr>,
    pub asc: bool,
    pub nulls_first: bool,
}

SORT expression

Fields

expr: Box<Expr>

The expression to sort on

asc: bool

The direction of the sort

nulls_first: bool

Whether to put Nulls before all other data values

Implementations

impl Sort

pub fn new(expr: Box<Expr>, asc: bool, nulls_first: bool) -> Self

Create a new Sort expression

pub fn reverse(&self) -> Self

Create a new Sort expression with the opposite sort direction

Trait Implementations

impl Clone for Sort

fn clone(&self) -> Sort

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Sort

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

Formats the value using the given formatter.

impl Hash for Sort

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Sort

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for Sort

impl StructuralPartialEq for Sort