**How to reproduce**
Clickhouse server 20.13.1.5273
```
CREATE TABLE default.test
(
`key` UInt32,
`ts` DateTime CODEC(DoubleDelta, LZ4),
`db_time` DateTime DEFAULT now() COMMENT 'spout-ignore' CODEC(DoubleDelta, LZ4)
)
ENGINE = MergeTree
PARTITION BY toStartOfTenMinutes(db_time)
ORDER BY (key, ts)
TTL db_time + toIntervalHour(3)
SETTINGS index_granularity = 8192, merge_with_ttl_timeout = 3600, min_rows_for_compact_part = 1000000, min_bytes_for_compact_part = 200000000, in_memory_parts_enable_wal = 0;


INSERT INTO test(key, ts) SELECT number % 1000, now() + intDiv(number,1000) FROM numbers(500);

SELECT * FROM test;
500 rows in set. Elapsed: 0.003 sec.

DETACH TABLE test;

ATTACH TABLE test;

SELECT * FROM test;

0 rows in set. Elapsed: 0.002 sec.
```

**Expected behavior**
Clickhouse would flush parts on disk.
{
            return std::forward_as_tuple(static_cast<UInt8>(lhs.state), lhs.partition_id)
                   < std::forward_as_tuple(static_cast<UInt8>(rhs.state), rhs.info.partition_id);
        }
    };
    using DataParts = std::set<DataPartPtr, LessDataPart>;
    using DataPartsVector = std::vector<DataPartPtr>;
    using DataPartsLock = std::unique_lock<std::mutex>;
    DataPartsLock lockParts() const { return DataPartsLock(data_parts_mutex); }
    MergeTreeDataPartType choosePartType(size_t bytes_uncompressed, size_t rows_count) const;
    MergeTreeDataPartType choosePartTypeOnDisk(size_t bytes_uncompressed, size_t rows_count) const;
    
    MutableDataPartPtr createPart(const String & name,
        MergeTreeDataPartType type, const MergeTreePartInfo & part_info,
        const VolumePtr & volume, const String & relative_path, const IMergeTreeDataPart * parent_part = nullptr) const;
    
    
    MutableDataPartPtr createPart(const String & name,
        const VolumePtr & volume, const String & relative_path, const IMergeTreeDataPart * parent_part = nullptr) const;
    MutableDataPartPtr createPart(const String & name, const MergeTreePartInfo & part_info,
        const VolumePtr & volume, const String & relative_path, const IMergeTreeDataPart * parent_part = nullptr) const;
    
    
    
    
    
    class Transaction : private boost::noncopyable
    {
    public:
        Transaction(MergeTreeData & data_) : data(data_) {}