```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');

```

{
    DataPartPtr part_to_delete;
    {
        auto lock = lockParts();
        auto part_name_with_state = part->getNameWithState();
        LOG_TRACE(log, "Trying to immediately remove part {}", part_name_with_state);
        if (part->getState() != DataPartState::Temporary)
        {
            auto it = data_parts_by_info.find(part->info);
            if (it == data_parts_by_info.end() || (*it).get() != part.get())
                throw Exception("Part " + part->name + " doesn't exist", ErrorCodes::LOGICAL_ERROR);
            part.reset();
            if (!((*it)->getState() == DataPartState::Outdated && it->unique()))
            {
                if ((*it)->getState() != DataPartState::Outdated)
                    LOG_WARNING(log, "Cannot immediately remove part {} because it's not in Outdated state "
                             "usage counter {}", part_name_with_state, it->use_count());
                if (!it->unique())
                    LOG_WARNING(log, "Cannot immediately remove part {} because someone using it right now "
                             "usage counter {}", part_name_with_state, it->use_count());
                return;