Note
This view is introduced since OceanBase Database V4.2.0.
Purpose
The oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY view displays the execution information about historical collection tasks.
Columns
Column |
Type |
Nullable? |
Description |
|---|---|---|---|
| TENANT_ID | bigint(20) | NO | The ID of the tenant to which the collection task belongs. |
| TASK_ID | varchar(36) | NO | The ID of the collection task, which is generated based on UUID and is globally unique. |
| TYPE | varchar(16) | NO | The type of the collection task. |
| STATUS | varchar(8) | NO | The status of the collection task. Valid values:
|
| TABLE_COUNT | bigint(20) | YES | The number of tables whose statistics need to be collected by the collection task. |
| FAILED_COUNT | bigint(20) | YES | The number of tables whose statistics failed to be collected by the collection task. |
| START_TIME | datetime(6) | NO | The start time of the collection task. |
| END_TIME | datetime(6) | NO | The end time of the collection task. |
Sample query
Query the history of manual collection tasks in the current tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY WHERE TYPE='MANUAL GATHER';
The query result is as follows:
+-----------+--------------------------------------+---------------+---------+-------------+--------------+----------------------------+----------------------------+
| TENANT_ID | TASK_ID | TYPE | STATUS | TABLE_COUNT | FAILED_COUNT | START_TIME | END_TIME |
+-----------+--------------------------------------+---------------+---------+-------------+--------------+----------------------------+----------------------------+
| 1002 | 5b965b29-062d-11f0-9059-00163e0d8e01 | MANUAL GATHER | FAILED | 1 | 1 | 2025-03-21 16:20:32.834753 | 2025-03-21 16:20:32.836438 |
| 1002 | 719de009-062d-11f0-9059-00163e0d8e01 | MANUAL GATHER | SUCCESS | 1 | 0 | 2025-03-21 16:21:09.793531 | 2025-03-21 16:21:09.891911 |
+-----------+--------------------------------------+---------------+---------+-------------+--------------+----------------------------+----------------------------+
2 rows in set
References
To view the collection status of statistics at the table level, see DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY.
For more information about statistics collection monitoring and diagnostics, see Statistics collection monitoring and diagnostics.