问题
答案
-- 以 default 身份登录（管理员权限）
clickhouse-cloud :) SELECT user()
SELECT user()
Query id: 9bc02d8b-ab05-4a63-b2dd-3e0093f36d31
┌─currentUser()─┐
│ default │
└───────────────┘
1 row in set. Elapsed: 0.001 sec.
-- 创建用户 'foo'
clickhouse-cloud :) CREATE USER foo IDENTIFIED WITH sha256_password BY 'secretPassword123!'
CREATE USER foo IDENTIFIED WITH sha256_hash BY '4338B66A5F04244574CB9C872829F1FD8F696C658EC7A4BD22FEFBBCF331B665' SALT 'C2911CA1E4787227BBD0EBEF43066EF2EC4C54172C1AB3616E88050F2EC13475'
Query id: 9711f5fc-2b5c-43f0-a760-0c67764919a2
Ok.
0 rows in set. Elapsed: 0.102 sec.
-- 创建用户 'bar'
clickhouse-cloud :) CREATE USER bar IDENTIFIED WITH sha256_password BY 'secretPassword123!'
CREATE USER bar IDENTIFIED WITH sha256_hash BY '14A1401822566260191F51BAE85C4740E650E1F9D02DEFFF086CD6A6A8B3164F' SALT '276AE4A32353D579894C83C230775568E501CCD696531EEF0006761D3BEE3F75'
Query id: 11a78bf5-f5e1-4f1d-bfe8-cf2aa0a1b15d
Ok.
0 rows in set. Elapsed: 0.103 sec.
-- 创建角色 'role_a'
clickhouse-cloud :) CREATE ROLE role_a;
CREATE ROLE role_a
Query id: 13ccc007-fa5a-4110-9a05-48e284cea45f
Ok.
0 rows in set. Elapsed: 0.104 sec.
-- 创建角色 'role_b'
clickhouse-cloud :) CREATE ROLE role_b;
CREATE ROLE role_b
Query id: 43f84376-76fa-4cd2-b8e2-2dcfbe41ec1b
Ok.
0 rows in set. Elapsed: 0.103 sec.
-- 将 'role_a' 授予用户 'foo' 和 'bar'
clickhouse-cloud :) GRANT role_a to foo,bar
GRANT role_a TO foo, bar
Query id: 4fe91624-efb3-4091-b680-b6905ab445b4
Ok.
0 rows in set. Elapsed: 0.107 sec.
-- 将 'role_b' 授予用户 'bar'
clickhouse-cloud :) GRANT role_b TO bar
GRANT role_b TO bar
Query id: 7ea38b28-2719-4dd6-8abd-0241f7b34d5c
Ok.
0 rows in set. Elapsed: 0.102 sec.
-- 哪些用户被分配了 'role_a'？
clickhouse-cloud :) SELECT * FROM system.role_grants WHERE granted_role_name='role_a';
SELECT *
FROM system.role_grants
WHERE granted_role_name = 'role_a'
Query id: bf088776-f450-4150-b2e8-197b400573c1
┌─user_name─┬─role_name─┬─granted_role_name─┬─granted_role_is_default─┬─with_admin_option─┐
│ bar │ ᴺᵁᴸᴸ │ role_a │ 1 │ 0 │
│ foo │ ᴺᵁᴸᴸ │ role_a │ 1 │ 0 │
└───────────┴───────────┴───────────────────┴─────────────────────────┴───────────────────┘
2 rows in set. Elapsed: 0.001 sec.
-- 用户 'foo' 和 'bar' 被分配了哪些角色？
clickhouse-cloud :) SELECT * FROM system.role_grants WHERE user_name IN ('foo','bar');
SELECT *
FROM system.role_grants
WHERE user_name IN ('foo', 'bar')
Query id: b81dbe1c-42f0-43bd-b237-1a6b1d81ae3d
┌─user_name─┬─role_name─┬─granted_role_name─┬─granted_role_is_default─┬─with_admin_option─┐
│ bar │ ᴺᵁᴸᴸ │ role_b │ 1 │ 0 │
│ bar │ ᴺᵁᴸᴸ │ role_a │ 1 │ 0 │
│ foo │ ᴺᵁᴸᴸ │ role_a │ 1 │ 0 │
└───────────┴───────────┴───────────────────┴─────────────────────────┴───────────────────┘
3 rows in set. Elapsed: 0.001 sec.
-- 以用户 'foo' 身份登录
clickhouse-cloud :) SELECT user()
SELECT user()
Query id: eee6eaaa-11bc-42c1-9258-fa3079ee6f80
┌─currentUser()─┐
│ foo │
└───────────────┘
1 row in set. Elapsed: 0.001 sec.
clickhouse-cloud :) SHOW CURRENT ROLES
SHOW CURRENT ROLES
Query id: aa6a1ac1-3502-4960-bb34-f7d9f0d7986e
┌─role_name─┬─with_admin_option─┬─is_default─┐
│ role_a │ 0 │ 1 │
└───────────┴───────────────────┴────────────┘
1 row in set. Elapsed: 0.002 sec.
-- 以用户 'bar' 身份登录
clickhouse-cloud :) SELECT user()
SELECT user()
Query id: fa9ba47f-efcf-4491-9b4e-2f1130dfa84b
┌─currentUser()─┐
│ bar │
└───────────────┘
1 row in set. Elapsed: 0.001 sec.
clickhouse-cloud :) SHOW CURRENT ROLES
SHOW CURRENT ROLES
Query id: fb3f2941-a8ce-481d-8fad-b775bfc5b532
┌─role_name─┬─with_admin_option─┬─is_default─┐
│ role_a │ 0 │ 1 │
│ role_b │ 0 │ 1 │
└───────────┴───────────────────┴────────────┘
2 rows in set. Elapsed: 0.001 sec.