Enum Func

src/sql/src/func.rs:1748–1754

#[derive(Debug)]
pub enum Func {
    Scalar(Vec<FuncImpl<HirScalarExpr>>),
    Aggregate(Vec<FuncImpl<(HirScalarExpr, AggregateFunc)>>),
    Table(Vec<FuncImpl<TableFuncPlan>>),
    ScalarWindow(Vec<FuncImpl<ScalarWindowFunc>>),
    ValueWindow(Vec<FuncImpl<(HirScalarExpr, ValueWindowFunc)>>),
}

impl Func {
    pub fn func_impls(&self) -> Vec<FuncImplCatalogDetails> {