Struct datafusion_expr::expr::AggregateFunction

pub struct AggregateFunction {
    pub fun: AggregateFunction,
    pub args: Vec<Expr>,
    pub distinct: bool,
    pub filter: Option<Box<Expr>>,
}

Aggregate function

Fields

fun: AggregateFunction

Name of the function

args: Vec<Expr>

List of expressions to feed to the functions as arguments

distinct: bool

Whether this is a DISTINCT aggregation or not

filter: Option<Box<Expr>>

Optional filter

Implementations

impl AggregateFunction

pub fn new(
    fun: AggregateFunction,
    args: Vec<Expr>,
    distinct: bool,
    filter: Option<Box<Expr>>
) -> Self

Trait Implementations

impl Clone for AggregateFunction

fn clone(&self) -> AggregateFunction

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for AggregateFunction

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<AggregateFunction> for AggregateFunction

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

impl StructuralEq for AggregateFunction

impl StructuralPartialEq for AggregateFunction