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;

```
if (!isLeft(kind) && !isInner(kind))
                throw Exception("Wrong ASOF JOIN type. Only ASOF and LEFT ASOF joins are supported", ErrorCodes::NOT_IMPLEMENTED);
            if (key_columns.size() <= 1)
                throw Exception("ASOF join needs at least one equi-join column", ErrorCodes::SYNTAX_ERROR);
            size_t asof_size;
            asof_type = SortedLookupVectorBase::getTypeSize(*key_columns.back(), asof_size);
            key_columns.pop_back();
            
            
            
            
            auto & asof_key_sizes = key_sizes.emplace_back();
            data->type = chooseMethod(kind, key_columns, asof_key_sizes);
            asof_key_sizes.push_back(asof_size);
        }
        else
        {
            
            auto current_join_method = chooseMethod(kind, key_columns, key_sizes.emplace_back());
            if (data->type == Type::EMPTY)
                data->type = current_join_method;
            else if (data->type != current_join_method)
                data->type = Type::hashed;
        }
    }
    for (auto & maps : data->maps)
        dataMapInit(maps);
}
HashJoin::Type HashJoin::chooseMethod(JoinKind kind, const ColumnRawPtrs & key_columns, Sizes & key_sizes)