```sql
CREATE TABLE t
(
   id Int64, 
   d String,
   p Map(String, String)
   
)
ENGINE = ReplacingMergeTree order by id settings index_granularity  = 0;


insert into t values (1,  's', {'a':'b'});

CH starts eating RAM until it crashes

the same with

insert into t select 1,  's', map('a','b');

```

{
    std::optional<std::unordered_set<String>> partition_ids;
    if (partitions)
        partition_ids = getPartitionIDsFromQuery(*partitions, restorer.getContext());
    auto backup = restorer.getBackup();
    Strings part_names = backup->listFiles(data_path_in_backup);
    boost::remove_erase(part_names, "mutations");
    auto restored_parts_holder
        = std::make_shared<RestoredPartsHolder>(std::static_pointer_cast<MergeTreeData>(shared_from_this()), backup, part_names.size());
    fs::path data_path_in_backup_fs = data_path_in_backup;
    size_t num_parts = 0;
    for (const String & part_name : part_names)
    {
        const auto part_info = MergeTreePartInfo::tryParsePartName(part_name, format_version);
        if (!part_info)
        {
            throw Exception(ErrorCodes::CANNOT_RESTORE_TABLE, "File name {} is not a part's name",
                            String{data_path_in_backup_fs / part_name});
        }
        if (partition_ids && !partition_ids->contains(part_info->partition_id))
            continue;