查看OB集群所有租户信息: __all_tenant 或 gv$tenant
租户类别compatibility_mode: 0-mysql, 1-oracle
比如：

obclient> select tenant_id, tenant_name, compatibility_mode,zone_list, locality ,primary_zone ,gmt_modified from __all_tenant;
+-----------+----------------------+--------------------+-------------------+---------------------------------------------+-------------------+----------------------------+
| tenant_id | tenant_name          | compatibility_mode | zone_list         | locality                                    | primary_zone      | gmt_modified               |
+-----------+----------------------+--------------------+-------------------+---------------------------------------------+-------------------+----------------------------+
|         1 | sys                  |                  0 | zone1;zone2;zone3 | FULL{1}@zone1, FULL{1}@zone2, FULL{1}@zone3 | zone1;zone2,zone3 | 2020-12-21 15:57:13.995853 |
|      1001 | gjj_mysql_tent       |                  0 | zone1;zone2;zone3 | FULL{1}@zone1, FULL{1}@zone2, FULL{1}@zone3 | zone1,zone2,zone3 | 2020-12-23 10:39:29.044498 |
|      1002 | gjj_ora_tent         |                  1 | zone1;zone2;zone3 | FULL{1}@zone1, FULL{1}@zone2, FULL{1}@zone3 | zone1,zone2,zone3 | 2020-12-23 14:52:09.341057 |
|      1004 | gjj_ora_tent_restore |                  1 | zone1;zone2;zone3 | FULL{1}@zone1, FULL{1}@zone2, FULL{1}@zone3 | zone1,zone2,zone3 | 2021-01-26 18:47:23.217573 |
|      1005 | ora_test_tent        |                  1 | zone1;zone2;zone3 | FULL{1}@zone1, FULL{1}@zone2, FULL{1}@zone3 | zone1;zone2;zone3 | 2021-02-01 11:16:11.895747 |
+-----------+----------------------+--------------------+-------------------+---------------------------------------------+-------------------+----------------------------+
5 rows in set (0.01 sec)

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