Struct AggregateFunction 

pub struct AggregateFunction {
    pub source_dialect: Option<DialectType>,
    pub name: String,
    pub args: Vec<Expression>,
    pub distinct: bool,
    pub filter: Option<Expression>,
    pub order_by: Vec<Ordered>,
    pub limit: Option<Box<Expression>>,
    pub ignore_nulls: Option<bool>,
    pub inferred_type: Option<DataType>,
}

Represent a named aggregate function call with optional FILTER, ORDER BY, and LIMIT.

This struct is used for aggregate function calls that are not covered by one of the dedicated typed variants (e.g. Count, Sum). It supports SQL:2003 FILTER (WHERE …) clauses, ordered-set aggregates, and IGNORE NULLS / RESPECT NULLS modifiers.

Fields

source_dialect: Option<DialectType>

Dialect whose call semantics must be retained through independent generation.

name: String

The aggregate function name (e.g. “JSON_AGG”, “XMLAGG”).

args: Vec<Expression>

Positional arguments.

distinct: bool

Whether DISTINCT was specified.

filter: Option<Expression>

Optional FILTER (WHERE …) clause applied to the aggregate.

order_by: Vec<Ordered>

ORDER BY inside aggregate (e.g., JSON_AGG(x ORDER BY y))

limit: Option<Box<Expression>>

LIMIT inside aggregate (e.g., ARRAY_CONCAT_AGG(x LIMIT 2))

ignore_nulls: Option<bool>

IGNORE NULLS / RESPECT NULLS

inferred_type: Option<DataType>

Inferred data type from type annotation

Trait Implementations

impl Clone for AggregateFunction

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggregateFunction

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

Formats the value using the given formatter.

impl Default for AggregateFunction

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for AggregateFunction

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AggregateFunction

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AggregateFunction

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AggregateFunction