**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.
```

total_bytes = getTotalByteCount();
        }
    }
    return table_join->sizeLimits().check(total_rows, total_bytes, "JOIN", ErrorCodes::SET_SIZE_LIMIT_EXCEEDED);
}
namespace
{
struct JoinOnKeyColumns
{
    Names key_names;
    Columns materialized_keys_holder;
    ColumnRawPtrs key_columns;
    ConstNullMapPtr null_map;
    ColumnPtr null_map_holder;
    
    JoinCommon::JoinMask join_mask_column;
    Sizes key_sizes;
    explicit JoinOnKeyColumns(const Block & block, const Names & key_names_, const String & cond_column_name, const Sizes & key_sizes_)
        : key_names(key_names_)
        , materialized_keys_holder(JoinCommon::materializeColumns(block, key_names)) 
        , key_columns(JoinCommon::getRawPointers(materialized_keys_holder))
        , null_map(nullptr)
        , null_map_holder(extractNestedColumnsAndNullMap(key_columns, null_map))
        , join_mask_column(JoinCommon::getColumnAsMask(block, cond_column_name))
        , key_sizes(key_sizes_)
    {
    }
    bool isRowFiltered(size_t i) const { return join_mask_column.isRowFiltered(i); }
};
class AddedColumns