Enum datafusion_expr::expr::AggregateFunctionDefinition

pub enum AggregateFunctionDefinition {
    BuiltIn(AggregateFunction),
    UDF(Arc<AggregateUDF>),
}

Defines which implementation of an aggregate function DataFusion should call.

Variants

BuiltIn(AggregateFunction)

UDF(Arc<AggregateUDF>)

Resolved to a user defined aggregate function

Implementations

impl AggregateFunctionDefinition

pub fn name(&self) -> &str

Function’s name for display

Trait Implementations

impl Clone for AggregateFunctionDefinition

fn clone(&self) -> AggregateFunctionDefinition

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateFunctionDefinition

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

Formats the value using the given formatter.

impl Hash for AggregateFunctionDefinition

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 AggregateFunctionDefinition

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

impl StructuralPartialEq for AggregateFunctionDefinition