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Merged
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Sep 9, 2025
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feat: add written_bytes_since_open desc #2103

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44 changes: 23 additions & 21 deletions docs/reference/sql/information-schema/region-statistics.md
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Original file line number Diff line number Diff line change
Expand Up @@ -19,22 +19,23 @@ DESC REGION_STATISTICS;
The output is as follows:

```sql
+---------------+--------+------+------+---------+---------------+
| Column | Type | Key | Null | Default | Semantic Type |
+---------------+--------+------+------+---------+---------------+
| region_id | UInt64 | | NO | | FIELD |
| table_id | UInt32 | | NO | | FIELD |
| region_number | UInt32 | | NO | | FIELD |
| region_rows | UInt64 | | YES | | FIELD |
| disk_size | UInt64 | | YES | | FIELD |
| memtable_size | UInt64 | | YES | | FIELD |
| manifest_size | UInt64 | | YES | | FIELD |
| sst_num | UInt64 | | YES | | FIELD |
| sst_size | UInt64 | | YES | | FIELD |
| index_size | UInt64 | | YES | | FIELD |
| engine | String | | YES | | FIELD |
| region_role | String | | YES | | FIELD |
+---------------+--------+------+------+---------+---------------+
+--------------------------+--------+------+------+---------+---------------+
| Column | Type | Key | Null | Default | Semantic Type |
+--------------------------+--------+------+------+---------+---------------+
| region_id | UInt64 | | NO | | FIELD |
| table_id | UInt32 | | NO | | FIELD |
| region_number | UInt32 | | NO | | FIELD |
| region_rows | UInt64 | | YES | | FIELD |
| written_bytes_since_open | UInt64 | | YES | | FIELD |
| disk_size | UInt64 | | YES | | FIELD |
| memtable_size | UInt64 | | YES | | FIELD |
| manifest_size | UInt64 | | YES | | FIELD |
| sst_size | UInt64 | | YES | | FIELD |
| sst_num | UInt64 | | YES | | FIELD |
| index_size | UInt64 | | YES | | FIELD |
| engine | String | | YES | | FIELD |
| region_role | String | | YES | | FIELD |
+--------------------------+--------+------+------+---------+---------------+
```

Fields in the `REGION_STATISTICS` table are described as follows:
Expand All @@ -43,6 +44,7 @@ Fields in the `REGION_STATISTICS` table are described as follows:
- `table_id`: The ID of the table.
- `region_number`: The number of the region in the table.
- `region_rows`: The number of rows in the region.
- `written_bytes_since_open`: The number of bytes written to the region since the region was opened.
- `disk_size`: The total size of data files in the region, including data, index and metadata etc.
- `memtable_size`: The region's total size of memtables.
- `manifest_size`: The region's total size of manifest files.
Expand All @@ -63,9 +65,9 @@ WHERE t.table_name = 'system_metrics';

Output:
```sql
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| region_id | table_id | region_number | region_rows | disk_size | memtable_size | manifest_size | sst_size | sst_num | index_size | engine | region_role |
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| 4398046511104 | 1024 | 0 | 8 | 4922 | 0 | 1338 | 3249 | 1 | 335 | mito | Leader |
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| region_id | table_id | region_number | region_rows | written_bytes_since_open | disk_size | memtable_size | manifest_size | sst_size | sst_num | index_size | engine | region_role |
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| 4398046511104 | 1024 | 0 | 8 | 0 | 4922 | 0 | 1338 | 3249 | 1 | 335 | mito | Leader |
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
```
44 changes: 23 additions & 21 deletions ...ugin-content-docs/current/reference/sql/information-schema/region-statistics.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,22 +19,23 @@ DESC REGION_STATISTICS;
输出如下：

```sql
+---------------+--------+------+------+---------+---------------+
| Column | Type | Key | Null | Default | Semantic Type |
+---------------+--------+------+------+---------+---------------+
| region_id | UInt64 | | NO | | FIELD |
| table_id | UInt32 | | NO | | FIELD |
| region_number | UInt32 | | NO | | FIELD |
| region_rows | UInt64 | | YES | | FIELD |
| disk_size | UInt64 | | YES | | FIELD |
| memtable_size | UInt64 | | YES | | FIELD |
| manifest_size | UInt64 | | YES | | FIELD |
| sst_num | UInt64 | | YES | | FIELD |
| sst_size | UInt64 | | YES | | FIELD |
| index_size | UInt64 | | YES | | FIELD |
| engine | String | | YES | | FIELD |
| region_role | String | | YES | | FIELD |
+---------------+--------+------+------+---------+---------------+
+--------------------------+--------+------+------+---------+---------------+
| Column | Type | Key | Null | Default | Semantic Type |
+--------------------------+--------+------+------+---------+---------------+
| region_id | UInt64 | | NO | | FIELD |
| table_id | UInt32 | | NO | | FIELD |
| region_number | UInt32 | | NO | | FIELD |
| region_rows | UInt64 | | YES | | FIELD |
| written_bytes_since_open | UInt64 | | YES | | FIELD |
| disk_size | UInt64 | | YES | | FIELD |
| memtable_size | UInt64 | | YES | | FIELD |
| manifest_size | UInt64 | | YES | | FIELD |
| sst_size | UInt64 | | YES | | FIELD |
| sst_num | UInt64 | | YES | | FIELD |
| index_size | UInt64 | | YES | | FIELD |
| engine | String | | YES | | FIELD |
| region_role | String | | YES | | FIELD |
+--------------------------+--------+------+------+---------+---------------+
```

`REGION_STATISTICS` 表中的字段描述如下：
Expand All @@ -43,6 +44,7 @@ DESC REGION_STATISTICS;
- `table_id`: 表的 ID。
- `region_number`: Region 在表中的编号。
- `region_rows`: Region 中的记录行数。
- `written_bytes_since_open`: Region 自打开以来写入的字节数。
- `disk_size`: Region 中数据文件的总大小，包括数据、索引及元信息等。
- `memtable_size`: Region 中内存 memtables 的总大小。
- `manifest_size`: Region 中元信息 manifest 文件的总大小。
Expand All @@ -61,9 +63,9 @@ WHERE t.table_name = 'system_metrics';

输出：
```sql
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| region_id | table_id | region_number | region_rows | disk_size | memtable_size | manifest_size | sst_size | sst_num | index_size | engine | region_role |
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| 4398046511104 | 1024 | 0 | 8 | 4922 | 0 | 1338 | 3249 | 1 | 335 | mito | Leader |
+---------------+----------+---------------+-------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| region_id | table_id | region_number | region_rows | written_bytes_since_open | disk_size | memtable_size | manifest_size | sst_size | sst_num | index_size | engine | region_role |
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
| 4398046511104 | 1024 | 0 | 8 | 0 | 4922 | 0 | 1338 | 3249 | 1 | 335 | mito | Leader |
+---------------+----------+---------------+-------------+--------------------------+-----------+---------------+---------------+----------+---------+------------+--------+-------------+
```