Function sql::func::select_impl_inner

fn select_impl_inner<R>(
    ecx: &ExprContext<'_>, 
    impls: &[FuncImpl<R>], 
    cexprs: Vec<CoercibleScalarExpr>, 
    types: &[Option<ScalarType>], 
    order_by: Vec<ColumnOrder>
) -> Result<R, PlanError> where
    R: Debug,