Enum RetVal 

pub enum RetVal {
    Var(String),
    Prop {
        var: String,
        field: String,
    },
    Agg {
        func: AggFunc,
        arg: AggArg,
    },
    FuncCall {
        name: String,
        args: Vec<Operand>,
    },
    ScalarExpr(Operand),
}

RETURN item value: bare variable, var.field, an aggregate call, a scalar function call, or an arbitrary scalar expression (arithmetic etc.).

Variants

Var(String)

Prop

Fields

var: String

field: String

Agg

Single aggregate function call. When combined with non-aggregate items in the same RETURN clause, the planner routes to GroupAggregate. Multiple aggregate items are also supported via GroupAggregate.

Fields

func: AggFunc

arg: AggArg

FuncCall

Scalar function call in a RETURN position, e.g. toLower(n.name). The same function set as Operand::FuncCall (see SCALAR_FUNCS).

Fields

name: String

args: Vec<Operand>

ScalarExpr(Operand)

Arbitrary scalar expression in a RETURN/WITH position, e.g. n.age + 1. Evaluated via resolve_operand at execution time; null propagates.

Trait Implementations

impl Clone for RetVal

fn clone(&self) -> RetVal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetVal

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

Formats the value using the given formatter.

impl PartialEq for RetVal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RetVal