 This bug is reproduced on any version ( 22.1.3.7 , 22.3.11.12 , 22.9.3)

**How to reproduce** 
*(cant reproduce well on fiddle, but easy locally or on production)*

**NOT OK (with preallocate)**
```
CREATE TABLE default.oom_table (key String) ENGINE = MergeTree() ORDER BY tuple();

INSERT INTO default.oom_table SELECT hex(sipHash128(toString(number % 100))) FROM numbers(1000000000);

CREATE VIEW default.oom_view AS SELECT xxHash32(key) hash, key FROM default.oom_table GROUP BY key;

CREATE DICTIONARY default.oom_dict (hash UInt32, key String) PRIMARY KEY hash SOURCE(CLICKHOUSE(host 'localhost' user 'default' port 9000 db 'default' table 'oom_view')) LAYOUT (HASHED(PREALLOCATE 1)) LIFETIME (600);

SELECT * FROM dictionary('default.oom_dict');
```

**Error**
```
Code: 241. DB::Exception: Received from clickhouse-server:9000. DB::Exception: Memory limit (total) exceeded: would use 48.48 GiB (attempt to allocate chunk of 51540792506 bytes), maximum: 13.50 GiB. OvercommitTracker decision: Query was selected to stop by OvercommitTracker.. (MEMORY_LIMIT_EXCEEDED)

```

**OK (without preallocate)**
```
CREATE TABLE default.oom_table (key String) ENGINE = MergeTree() ORDER BY tuple();

INSERT INTO default.oom_table SELECT hex(sipHash128(toString(number % 100))) FROM numbers(1000000000);

CREATE VIEW default.oom_view AS SELECT xxHash32(key) hash, key FROM default.oom_table GROUP BY key;

CREATE DICTIONARY default.oom_dict (hash UInt32, key String) PRIMARY KEY hash SOURCE(CLICKHOUSE(host 'localhost' user 'default' port 9000 db 'default' table 'oom_view')) LAYOUT (HASHED()) LIFETIME (600);

SELECT * FROM dictionary('default.oom_dict');
```


{
    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
    {
        if (hierarchical_index)
            return hierarchical_index;
        size_t hierarchical_attribute_index = *dict_struct.hierarchical_attribute_index;
        const auto & hierarchical_attribute = attributes[hierarchical_attribute_index];
        const CollectionsHolder<UInt64> & child_key_to_parent_key_maps = std::get<CollectionsHolder<UInt64>>(hierarchical_attribute.containers);
        size_t size = 0;
        for (const auto & map : child_key_to_parent_key_maps)
            size += map.size();
        HashMap<UInt64, PaddedPODArray<UInt64>> parent_to_child;
        parent_to_child.reserve(size);
        for (const auto & map : child_key_to_parent_key_maps)
        {
            for (const auto & [child_key, parent_key] : map)
            {
                parent_to_child[parent_key].emplace_back(child_key);
            }
        }
        return std::make_shared<DictionaryHierarchicalParentToChildIndex>(parent_to_child);
    }
    else
    {
        return nullptr;
    }
}
template <DictionaryKeyType dictionary_key_type, bool sparse, bool sharded>
ColumnPtr HashedDictionary<dictionary_key_type, sparse, sharded>::getDescendants(