Function array_agg 

pub fn array_agg<'a, V, E>(
    expr: E,
) -> SQLExpr<'a, V, Array<E::SQLType>, Null, Agg, E::Sources>
where
    V: SQLParam + 'a,
    V::DialectMarker: DialectSupports<PostgresAggregate>,
    E: Expr<'a, V>,

Collects values into a SQL array (ARRAY_AGG), on PostgreSQL.

Accepts any expression. The result is an array of the argument’s SQL type, nullable, and an aggregate.

Examples

assert_eq!(array_agg(users.id).sql(), r#"ARRAY_AGG ("users"."id")"#);