Struct PipeAggregateExpr 

pub struct PipeAggregateExpr<X: Extension = NoExt> {
    pub expr: Expr<X>,
    pub alias: Option<Ident>,
    pub asc: Option<bool>,
    pub nulls_first: Option<bool>,
    pub meta: Meta,
}

One item of a pipe AGGREGATE operator’s aggregate list or GROUP BY list: an expression with an optional output alias and an optional ASC/DESC + NULLS FIRST/LAST ordering suffix.

The single shape both lists share, matching sqlparser-rs’s ExprWithAliasAndOrderBy (an aliased expression plus OrderByOptions): ZetaSQL’s pipe AGGREGATE lets an aggregate drive output ordering and lets a grouping key carry its own direction, so the alias and the ordering co-occur on one item. Modelled separately from OrderByExpr (which has no alias and carries the PostgreSQL USING <op> sort form the pipe operator has no grammar for) and from SelectItem (which carries no ordering).

Fields

expr: Expr<X>

Expression evaluated by this syntax.

alias: Option<Ident>

Alias assigned by this syntax.

asc: Option<bool>

ASC (Some(true)) / DESC (Some(false)), or None when unwritten — the ordering direction, mirroring OrderByExpr::asc.

nulls_first: Option<bool>

NULLS FIRST (Some(true)) / NULLS LAST (Some(false)), or None when unwritten, mirroring OrderByExpr::nulls_first.

meta: Meta

Source location and node identity.

Trait Implementations

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

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

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

Formats the value using the given formatter.

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

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

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

Equality operator ==.

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

Inequality operator !=.

impl<X: Extension + Render> Render for PipeAggregateExpr<X>

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

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl<X> Serialize for PipeAggregateExpr<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 PipeAggregateExpr<X>

fn span(&self) -> Span

Return the span for this value.

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