mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 01:51:59 +00:00
01e1c5345a
In case you have different roles for the same user on multiple clusters,
ON CLUSTER query can help to overcome some limitations.
Consider the following example:
- cluster_with_data, dev_user (readonly=2)
- stage_cluster, dev_user (readonly=0)
So when you will execute the following query from stage_cluster, it will
be successfully executed, since ON CLUSTER queries has different system
profile:
DROP DATABASE default ON CLUSTER cluster_with_data
This is not 100% safe, but at least something.
Note, that right now only ON CLUSTER query it self is supported, but
separate clusters are not (i.e. GRANT CLUSTER some_cluster_name TO
default), since right now grants sticked to database+.
v2: on_cluster_queries_require_cluster_grant
v3: fix test and process flags as bit mask
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
7 lines
292 B
XML
7 lines
292 B
XML
<clickhouse>
|
|
<access_control_improvements>
|
|
<users_without_row_policies_can_read_rows>true</users_without_row_policies_can_read_rows>
|
|
<on_cluster_queries_require_cluster_grant>true</on_cluster_queries_require_cluster_grant>
|
|
</access_control_improvements>
|
|
</clickhouse>
|