Enum FunctionKind 

pub enum FunctionKind {
    Scalar,
    Aggregate,
}

Whether a name is a scalar function or an aggregate.

The binder needs to ask before it knows which slot the call goes in, since an aggregate is only legal in an aggregate list and the error for one in the wrong place should say so.

Variants

Scalar

One row in, one row out.

Aggregate

Many rows in, one row out.

Trait Implementations

impl Clone for FunctionKind

fn clone(&self) -> FunctionKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FunctionKind

impl Debug for FunctionKind

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

Formats the value using the given formatter.

impl Eq for FunctionKind

impl PartialEq for FunctionKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FunctionKind