Struct Function

pub struct Function {
    pub scalar_as_agg: bool,
    pub name: ObjectName,
    pub arg_list: FunctionArgList,
    pub within_group: Option<Box<OrderByExpr>>,
    pub filter: Option<Box<Expr>>,
    pub over: Option<WindowSpec>,
}

A function call

Fields

scalar_as_agg: bool

Whether the function is prefixed with AGGREGATE:

name: ObjectName

Function name.

arg_list: FunctionArgList

Argument list of the function call, i.e. things in ().

within_group: Option<Box<OrderByExpr>>

WITHIN GROUP clause of the function call, for ordered-set aggregate functions. FIXME(rc): why we only support one expression here?

filter: Option<Box<Expr>>

FILTER clause of the function call, for aggregate and window (not supported yet) functions.

over: Option<WindowSpec>

OVER clause of the function call, for window functions.

Implementations

impl Function

pub fn no_arg(name: ObjectName) -> Self

Trait Implementations

impl Clone for Function

fn clone(&self) -> Function

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Function

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

Formats the value using the given formatter.

impl Display for Function

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

Formats the value using the given formatter.

impl Hash for Function

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 Function

fn eq(&self, other: &Function) -> 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 Eq for Function

impl StructuralPartialEq for Function