mz_aclitem type
mz_aclitem data expresses a granted privilege on some object.
mz_aclitem info
| Detail | Info |
|---|---|
| Size | 26 bytes |
| Catalog name | mz_catalog.mz_aclitem |
| OID | 16566 |
Details
mz_aclitem represents a privilege granted to some user on some object. The format of mz_aclitem
is <grantee>=<privileges>/<grantor>.
<grantee>is the role ID of the role that has some privilege.<privileges>is the abbreviation of the privileges thatgranteehas concatenated together.<grantor>is the role ID of the role that granted the privileges.
A list of all privileges and their abbreviations are below:
| Privilege | Description | Abbreviation | Applicable Object Types |
|---|---|---|---|
SELECT |
Allows reading rows from an object. | r(”read”) | Table, View, Materialized View, Source |
INSERT |
Allows inserting into an object. | a(”append”) | Table |
UPDATE |
Allows updating an object (requires SELECT if a read is necessary). | w(”write”) | Table |
DELETE |
Allows deleting from an object (requires SELECT if a read is necessary). | d | Table |
CREATE |
Allows creating a new object within another object. | C | Database, Schema, Cluster |
USAGE |
Allows using an object or looking up members of an object. | U | Database, Schema, Connection, Secret, Cluster |
CREATEROLE |
Allows creating, altering, deleting roles and the ability to grant and revoke role membership. | R(“Role”) | System |
CREATEDB |
Allows creating databases. | B(“dataBase”) | System |
CREATECLUSTER |
Allows creating clusters. | N(“compute Node”) | System |
The CREATEROLE privilege is very powerful. It allows roles to grant and revoke membership in
other roles, even if it doesn’t have explicit membership in those roles. As a consequence, any role
with this privilege can obtain the privileges of any other role in the system.
If a mz_aclitem is casted to text, the role IDs are automatically converted to role names.
Valid casts
For details about casting, including contexts, see Functions: Cast.
| From | To | Required context |
|---|---|---|
mz_aclitem |
text |
Explicit |
Valid operations
There are no supported operations or functions on mz_aclitem types.