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'\" t
.\" Title: REVOKE
.\" Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\" Date: 2024
.\" Manual: PostgreSQL 15.6 Documentation
.\" Source: PostgreSQL 15.6
.\" Language: English
.\"
.TH "REVOKE" "7" "2024" "PostgreSQL 15.6" "PostgreSQL 15.6 Documentation"
.\" -----------------------------------------------------------------
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.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.nh
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.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
REVOKE \- remove access privileges
.SH "SYNOPSIS"
.sp
.nf
REVOKE [ GRANT OPTION FOR ]
{ { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER }
[, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON { [ TABLE ] \fItable_name\fR [, \&.\&.\&.]
| ALL TABLES IN SCHEMA \fIschema_name\fR [, \&.\&.\&.] }
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { SELECT | INSERT | UPDATE | REFERENCES } ( \fIcolumn_name\fR [, \&.\&.\&.] )
[, \&.\&.\&.] | ALL [ PRIVILEGES ] ( \fIcolumn_name\fR [, \&.\&.\&.] ) }
ON [ TABLE ] \fItable_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { USAGE | SELECT | UPDATE }
[, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON { SEQUENCE \fIsequence_name\fR [, \&.\&.\&.]
| ALL SEQUENCES IN SCHEMA \fIschema_name\fR [, \&.\&.\&.] }
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { CREATE | CONNECT | TEMPORARY | TEMP } [, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON DATABASE \fIdatabase_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON DOMAIN \fIdomain_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON FOREIGN DATA WRAPPER \fIfdw_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON FOREIGN SERVER \fIserver_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ EXECUTE | ALL [ PRIVILEGES ] }
ON { { FUNCTION | PROCEDURE | ROUTINE } \fIfunction_name\fR [ ( [ [ \fIargmode\fR ] [ \fIarg_name\fR ] \fIarg_type\fR [, \&.\&.\&.] ] ) ] [, \&.\&.\&.]
| ALL { FUNCTIONS | PROCEDURES | ROUTINES } IN SCHEMA \fIschema_name\fR [, \&.\&.\&.] }
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON LANGUAGE \fIlang_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { SELECT | UPDATE } [, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON LARGE OBJECT \fIloid\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { SET | ALTER SYSTEM } [, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON PARAMETER \fIconfiguration_parameter\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ { CREATE | USAGE } [, \&.\&.\&.] | ALL [ PRIVILEGES ] }
ON SCHEMA \fIschema_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ CREATE | ALL [ PRIVILEGES ] }
ON TABLESPACE \fItablespace_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ GRANT OPTION FOR ]
{ USAGE | ALL [ PRIVILEGES ] }
ON TYPE \fItype_name\fR [, \&.\&.\&.]
FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
REVOKE [ ADMIN OPTION FOR ]
\fIrole_name\fR [, \&.\&.\&.] FROM \fIrole_specification\fR [, \&.\&.\&.]
[ GRANTED BY \fIrole_specification\fR ]
[ CASCADE | RESTRICT ]
where \fIrole_specification\fR can be:
[ GROUP ] \fIrole_name\fR
| PUBLIC
| CURRENT_ROLE
| CURRENT_USER
| SESSION_USER
.fi
.SH "DESCRIPTION"
.PP
The
\fBREVOKE\fR
command revokes previously granted privileges from one or more roles\&. The key word
PUBLIC
refers to the implicitly defined group of all roles\&.
.PP
See the description of the
\fBGRANT\fR
command for the meaning of the privilege types\&.
.PP
Note that any particular role will have the sum of privileges granted directly to it, privileges granted to any role it is presently a member of, and privileges granted to
PUBLIC\&. Thus, for example, revoking
SELECT
privilege from
PUBLIC
does not necessarily mean that all roles have lost
SELECT
privilege on the object: those who have it granted directly or via another role will still have it\&. Similarly, revoking
SELECT
from a user might not prevent that user from using
SELECT
if
PUBLIC
or another membership role still has
SELECT
rights\&.
.PP
If
GRANT OPTION FOR
is specified, only the grant option for the privilege is revoked, not the privilege itself\&. Otherwise, both the privilege and the grant option are revoked\&.
.PP
If a user holds a privilege with grant option and has granted it to other users then the privileges held by those other users are called dependent privileges\&. If the privilege or the grant option held by the first user is being revoked and dependent privileges exist, those dependent privileges are also revoked if
CASCADE
is specified; if it is not, the revoke action will fail\&. This recursive revocation only affects privileges that were granted through a chain of users that is traceable to the user that is the subject of this
REVOKE
command\&. Thus, the affected users might effectively keep the privilege if it was also granted through other users\&.
.PP
When revoking privileges on a table, the corresponding column privileges (if any) are automatically revoked on each column of the table, as well\&. On the other hand, if a role has been granted privileges on a table, then revoking the same privileges from individual columns will have no effect\&.
.PP
When revoking membership in a role,
GRANT OPTION
is instead called
ADMIN OPTION, but the behavior is similar\&. This form of the command also allows a
GRANTED BY
option, but that option is currently ignored (except for checking the existence of the named role)\&. Note also that this form of the command does not allow the noise word
GROUP
in
\fIrole_specification\fR\&.
.SH "NOTES"
.PP
A user can only revoke privileges that were granted directly by that user\&. If, for example, user A has granted a privilege with grant option to user B, and user B has in turn granted it to user C, then user A cannot revoke the privilege directly from C\&. Instead, user A could revoke the grant option from user B and use the
CASCADE
option so that the privilege is in turn revoked from user C\&. For another example, if both A and B have granted the same privilege to C, A can revoke their own grant but not B\*(Aqs grant, so C will still effectively have the privilege\&.
.PP
When a non\-owner of an object attempts to
\fBREVOKE\fR
privileges on the object, the command will fail outright if the user has no privileges whatsoever on the object\&. As long as some privilege is available, the command will proceed, but it will revoke only those privileges for which the user has grant options\&. The
\fBREVOKE ALL PRIVILEGES\fR
forms will issue a warning message if no grant options are held, while the other forms will issue a warning if grant options for any of the privileges specifically named in the command are not held\&. (In principle these statements apply to the object owner as well, but since the owner is always treated as holding all grant options, the cases can never occur\&.)
.PP
If a superuser chooses to issue a
\fBGRANT\fR
or
\fBREVOKE\fR
command, the command is performed as though it were issued by the owner of the affected object\&. Since all privileges ultimately come from the object owner (possibly indirectly via chains of grant options), it is possible for a superuser to revoke all privileges, but this might require use of
CASCADE
as stated above\&.
.PP
\fBREVOKE\fR
can also be done by a role that is not the owner of the affected object, but is a member of the role that owns the object, or is a member of a role that holds privileges
WITH GRANT OPTION
on the object\&. In this case the command is performed as though it were issued by the containing role that actually owns the object or holds the privileges
WITH GRANT OPTION\&. For example, if table
t1
is owned by role
g1, of which role
u1
is a member, then
u1
can revoke privileges on
t1
that are recorded as being granted by
g1\&. This would include grants made by
u1
as well as by other members of role
g1\&.
.PP
If the role executing
\fBREVOKE\fR
holds privileges indirectly via more than one role membership path, it is unspecified which containing role will be used to perform the command\&. In such cases it is best practice to use
\fBSET ROLE\fR
to become the specific role you want to do the
\fBREVOKE\fR
as\&. Failure to do so might lead to revoking privileges other than the ones you intended, or not revoking anything at all\&.
.PP
See
Section\ \&5.7
for more information about specific privilege types, as well as how to inspect objects\*(Aq privileges\&.
.SH "EXAMPLES"
.PP
Revoke insert privilege for the public on table
films:
.sp
.if n \{\
.RS 4
.\}
.nf
REVOKE INSERT ON films FROM PUBLIC;
.fi
.if n \{\
.RE
.\}
.PP
Revoke all privileges from user
manuel
on view
kinds:
.sp
.if n \{\
.RS 4
.\}
.nf
REVOKE ALL PRIVILEGES ON kinds FROM manuel;
.fi
.if n \{\
.RE
.\}
.sp
Note that this actually means
\(lqrevoke all privileges that I granted\(rq\&.
.PP
Revoke membership in role
admins
from user
joe:
.sp
.if n \{\
.RS 4
.\}
.nf
REVOKE admins FROM joe;
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
The compatibility notes of the
\fBGRANT\fR
command apply analogously to
\fBREVOKE\fR\&. The keyword
RESTRICT
or
CASCADE
is required according to the standard, but
PostgreSQL
assumes
RESTRICT
by default\&.
.SH "SEE ALSO"
\fBGRANT\fR(7), ALTER DEFAULT PRIVILEGES (\fBALTER_DEFAULT_PRIVILEGES\fR(7))
|
