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diff --git a/doc/src/sgml/man7/REVOKE.7 b/doc/src/sgml/man7/REVOKE.7 new file mode 100644 index 0000000..1f3d508 --- /dev/null +++ b/doc/src/sgml/man7/REVOKE.7 @@ -0,0 +1,314 @@ +'\" t +.\" Title: REVOKE +.\" Author: The PostgreSQL Global Development Group +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 2023 +.\" Manual: PostgreSQL 15.4 Documentation +.\" Source: PostgreSQL 15.4 +.\" Language: English +.\" +.TH "REVOKE" "7" "2023" "PostgreSQL 15.4" "PostgreSQL 15.4 Documentation" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * 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)) |