**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.
```

else if constexpr (jf.is_any_join && jf.full)
                {
                    
                }
                else if constexpr (jf.is_anti_join)
                {
                    if constexpr (jf.right && jf.need_flags)
                        used_flags.template setUsed<jf.need_flags, multiple_disjuncts>(find_result);
                }
                else 
                {
                    setUsed<need_filter>(filter, i);
                    used_flags.template setUsed<jf.need_flags, multiple_disjuncts>(find_result);
                    added_columns.appendFromBlock<jf.add_missing>(*mapped.block, mapped.row_num);
                    if (jf.is_any_or_semi_join)
                    {
                        break;
                    }
                }
            }
        }
        if constexpr (has_null_map)
        {
            if (!right_row_found && null_element_found)
            {
                addNotFoundRow<jf.add_missing, jf.need_replication>(added_columns, current_offset);
                if constexpr (jf.need_replication)
                {
                   (*added_columns.offsets_to_replicate)[i] = current_offset;
                }