CREATE USER

CREATE USER [IF NOT EXISTS | OR REPLACE] name1 [, name2 [,...]] [ON CLUSTER cluster_name]
    [{VALID UNTIL datetime | VALID FOR interval}]
    [NOT IDENTIFIED | IDENTIFIED {[WITH {plaintext_password | sha256_password | sha256_hash | double_sha1_password | double_sha1_hash}] BY {'password' | 'hash'}} | WITH NO_PASSWORD | {WITH ldap SERVER 'server_name'} | {WITH kerberos [REALM 'realm']} | {WITH ssl_certificate CN 'common_name' | SAN 'TYPE:subject_alt_name'} | {WITH ssh_key BY KEY 'public_key' TYPE 'ssh-rsa|...'} | {WITH http SERVER 'server_name' [SCHEME 'Basic']} [{VALID UNTIL datetime | VALID FOR interval}] [GRANTS (privilege ON object [,...])]
    [, {[{plaintext_password | sha256_password | sha256_hash | ...}] BY {'password' | 'hash'}} | {ldap SERVER 'server_name'} | {...} | ... [,...]]]
    [HOST {LOCAL | NAME 'name' | REGEXP 'name_regexp' | IP 'address' | LIKE 'pattern'} [,...] | ANY | NONE]
    [IN access_storage_type]
    [ROLE role [,...]]
    [DEFAULT ROLE role [,...]]
    [DEFAULT DATABASE database | NONE]
    [GRANTEES {user | role | ANY | NONE} [,...] [EXCEPT {user | role} [,...]]]
    [SETTINGS variable [= value] [MIN [=] min_value] [MAX [=] max_value] [READONLY | WRITABLE] | PROFILE 'profile_name'] [,...]

<clickhouse>
    <password_complexity>
        <rule>
            <pattern>.{12}</pattern>
            <message>be at least 12 characters long</message>
        </rule>
        <rule>
            <pattern>\p{N}</pattern>
            <message>contain at least 1 numeric character</message>
        </rule>
    </password_complexity>
</clickhouse>

CREATE USER mira HOST IP '127.0.0.1' IDENTIFIED WITH sha256_password BY 'qwerty';

CREATE USER john ROLE role1, role2;

CREATE USER john ROLE role1, role2 DEFAULT ROLE role1;

CREATE USER john ROLE role1, role2 DEFAULT ROLE ALL EXCEPT role2;

CREATE USER john GRANTEES jack;

SET param_user=john;
CREATE USER {user:Identifier};