**Usage**
Postgres, MySQL, and Oracle support the expression `LEFT JOIN ... ON 1 = 1`, but ClickHouse does not.

It may be possible to replace `LEFT JOIN ... ON 1 = 1` with `CROSS JOIN`, but I want to use the query in the same form for lots of databases.

Please support the expression `LEFT JOIN ... ON 1 = 1`.


**Detailed SQL**
```SQL
CREATE TABLE test
(
    `name` Nullable(String),
    `id` int
)
ENGINE = Log();

insert into test values ('a', 1) ('b', 2) (null, 3);

select * from test t1 left join (select * from test ) t2 on 1 = 1   
-- DB::Exception: Not equi-join ON expression: 1 = 1. No columns in one of equality side.: While processing 1 = 1.
```

{
        const size_t new_items = std::distance(from, to);
        if (items + new_items <= MAX_LINEAR)
        {
            std::copy(from, to, &array_holder[items]);
        }
        else
        {
            if (items <= MAX_LINEAR)
            {
                set_holder_ptr = std::make_unique<SetHolder>();
                set_holder_ptr->insert(std::cbegin(array_holder), std::cbegin(array_holder) + items);
            }
            set_holder_ptr->insert(from, to);
        }
        items += new_items;
    }
    template<class Needle>
    bool isKnown(const Needle & needle)
    {
        return items <= MAX_LINEAR
            ? std::find(std::cbegin(array_holder), std::cbegin(array_holder) + items, needle) != std::cbegin(array_holder) + items
            : set_holder_ptr->find(needle) != set_holder_ptr->end();
    }
};
template<>
class KnownRowsHolder<false>