```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');

```

const StorageMetadataPtr & metadata_snapshot,
    const Names & required_columns,
    bool has_filter,
    const SelectQueryInfo & query_info,
    const DataPartsVector & parts,
    DataPartsVector & normal_parts,
    const PartitionIdToMaxBlock * max_block_numbers_to_read,
    ContextPtr query_context) const
{
    if (!metadata_snapshot->minmax_count_projection)
        throw Exception(
            "Cannot find the definition of minmax_count projection but it's used in current query. It's a bug",
            ErrorCodes::LOGICAL_ERROR);
    auto block = metadata_snapshot->minmax_count_projection->sample_block.cloneEmpty();
    bool need_primary_key_max_column = false;
    const auto & primary_key_max_column_name = metadata_snapshot->minmax_count_projection->primary_key_max_column_name;
    NameSet required_columns_set(required_columns.begin(), required_columns.end());
    if (!primary_key_max_column_name.empty())
        need_primary_key_max_column = required_columns_set.contains(primary_key_max_column_name);
    auto partition_minmax_count_columns = block.mutateColumns();
    auto partition_minmax_count_column_names = block.getNames();
    auto insert = [](ColumnAggregateFunction & column, const Field & value)
    {
        auto func = column.getAggregateFunction();
        Arena & arena = column.createOrGetArena();
        size_t size_of_state = func->sizeOfData();
        size_t align_of_state = func->alignOfData();