Enum ArrayExpr 

pub enum ArrayExpr<X: Extension = NoExt> {
    Elements {
        elements: ThinVec<Expr<X>>,
        spelling: ArraySpelling,
        meta: Meta,
    },
    Subquery {
        query: Box<Query<X>>,
        meta: Meta,
    },
    Comprehension {
        comprehension: Box<ListComprehension<X>>,
        meta: Meta,
    },
}

An array/list constructor.

Either an element list (ARRAY[a, b], possibly empty ARRAY[], or the DuckDB bare-bracket [a, b]) or a subquery (ARRAY(SELECT …)). Boxed inside Expr::Array to keep the hot expression enum within its size budget.

Variants

Elements

ARRAY[a, b, …] / [a, b, …] (or empty ARRAY[] / []).

Fields

elements: ThinVec<Expr<X>>

elements in source order.

spelling: ArraySpelling

Whether the ARRAY keyword was written (vs. the bare […] form).

meta: Meta

Source location and node identity.

Subquery

ARRAY(<query>) — always the keyword form (DuckDB has no bracket-subquery spelling).

Fields

query: Box<Query<X>>

Query governed by this node.

meta: Meta

Source location and node identity.

Comprehension

A DuckDB list comprehension [element for var in source (if filter)?] (boxed; see ListComprehension). A distinct list-literal production from the element/subquery forms above: the same […] bracket opens it, but the for after the first element selects the comprehension rather than an element list. Gated by collection_literals — the same flag that admits the bracket list.

Fields

comprehension: Box<ListComprehension<X>>

The list comprehension; see ListComprehension.

meta: Meta

Source location and node identity.

Trait Implementations

impl<X: Clone + Extension> Clone for ArrayExpr<X>

fn clone(&self) -> ArrayExpr<X>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<X: Debug + Extension> Debug for ArrayExpr<X>

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

Formats the value using the given formatter.

impl<'de, X> Deserialize<'de> for ArrayExpr<X>

where X: Deserialize<'de> + Extension,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<X: Eq + Extension> Eq for ArrayExpr<X>

impl<X: Hash + Extension> Hash for ArrayExpr<X>

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<X: PartialEq + Extension> PartialEq for ArrayExpr<X>

fn eq(&self, other: &ArrayExpr<X>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<X> Serialize for ArrayExpr<X>

where X: Serialize + Extension,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<X: Extension> Spanned for ArrayExpr<X>

fn span(&self) -> Span

Return the span for this value.

impl<X: PartialEq + Extension> StructuralPartialEq for ArrayExpr<X>