https://s3.amazonaws.com/clickhouse-test-reports/42778/66c179217cdfdee1ba0d4b4b577b1a62655caed0/fuzzer_astfuzzermsan//report.html

Minimal example
```sql
#!/usr/bin/clickhouse-client --queries-file

DROP TABLE IF EXISTS tab1;
DROP TABLE IF EXISTS tab2;

SET allow_suspicious_low_cardinality_types = 1;

create table tab1 (a1 Int32, b1 Int32) engine = MergeTree order by a1;
create table tab2 (a2 LowCardinality(Int32), b2 Int32) engine = MergeTree order by a2;

insert into tab1 values (1, 2);
insert into tab2 values (1, 2);

SET join_use_nulls = 1;

SELECT 1 FROM tab1 FULL OUTER JOIN tab2 ON b1 - 2 = a2 OR a1 = b2;

```
, rows_to_add(block.rows())
        , sample_block(saved_block_sample)
        , is_join_get(is_join_get_)
    {
        size_t num_columns_to_add = block_with_columns_to_add.columns();
        if (is_asof_join)
            ++num_columns_to_add;
        columns.reserve(num_columns_to_add);
        type_name.reserve(num_columns_to_add);
        right_indexes.reserve(num_columns_to_add);
        for (const auto & src_column : block_with_columns_to_add)
        {
            
            
            auto qualified_name = join.getTableJoin().renamedRightColumnName(src_column.name);
            
            if (!block.has(qualified_name))
                addColumn(src_column, qualified_name);
        }
        if (is_asof_join)
        {
            assert(join_on_keys.size() == 1);
            const ColumnWithTypeAndName & right_asof_column = join.rightAsofKeyColumn();
            addColumn(right_asof_column, right_asof_column.name);
            left_asof_key = join_on_keys[0].key_columns.back();
        }
        for (auto & tn : type_name)
            right_indexes.push_back(saved_block_sample.getPositionByName(tn.name));
    }
    size_t size() const { return columns.size(); }