htyoung 6c10c47f79 [fix](fe) LIST partition table support modify default bucket num (#39688) ...

## Proposed changes
bp #39696

Issue Number: close #39684

```sql
CREATE TABLE `test1` (
    `id1` VARCHAR(255) NULL COMMENT 'id1',
    `id2` VARCHAR(255) NULL COMMENT 'id2',
    `event_time` VARCHAR(255) NULL COMMENT '事件时间',
    `event_date` VARCHAR(255) NULL COMMENT '事件日期',
    `event_ts` VARCHAR(256) NULL COMMENT '事件发生时间戳(毫秒)',
    `dt` VARCHAR(255) NOT NULL COMMENT '日期分区',
    `hr` VARCHAR(255) NOT NULL COMMENT '小时分区'
  ) ENGINE = OLAP DUPLICATE KEY(`id1`) COMMENT 'xxx' PARTITION BY LIST(`dt`, `hr`) (
    PARTITION p2024082021 VALUES IN (("2024-08-20", "21"))
  ) DISTRIBUTED BY HASH(`dt`, `hr`) BUCKETS 2 PROPERTIES (
    "replication_allocation" = "tag.location.default: 1",
    "min_load_replica_num" = "-1",
    "is_being_synced" = "false",
    "storage_medium" = "hdd",
    "storage_format" = "V2",
    "inverted_index_storage_format" = "V1",
    "light_schema_change" = "true",
    "disable_auto_compaction" = "false",
    "enable_single_replica_compaction" = "false",
    "group_commit_interval_ms" = "10000",
    "group_commit_data_bytes" = "134217728"
  );
```

1. 修改前表已有分区的bucket num为2

![image](https://github.com/user-attachments/assets/77efdd0c-f845-41a4-9a31-e454808ffe67)

2. 修改List分区表bucket num（从2 -> 4）

![image](https://github.com/user-attachments/assets/53b19918-2879-4cb3-b2bd-84ba35a7fc59)

3. 修改List分区后，添加的新分区bucket num为4

![image](https://github.com/user-attachments/assets/1f41f73f-d70f-433e-a7b6-8346b7dfcc4e)

Co-authored-by: tongyang.han <tongyang.han@jiduauto.com>

2024-08-23 11:52:16 +08:00

..

test_alter_modify_bucket.out

[fix](fe) LIST partition table support modify default bucket num (#39688)

2024-08-23 11:52:16 +08:00