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postgres/doc/src/sgml/ref/drop_owned.sgml
Tom Lane cc7053a5fe Revert "Avoid race condition between "GRANT role" and "DROP ROLE"".
This reverts commit 98fc31d649.
That change allowed DROP OWNED BY to drop grants of the target
role to other roles, arguing that nobody would need those
privileges anymore.  But that's not so: if you're not superuser,
you still need admin privilege on the target role so you can
drop it.

It's not clear whether or how the dependency-based approach
to solving the original problem can be adapted to keep these
grants.  Since v18 release is fast approaching, the sanest
thing to do seems to be to revert this patch for now.  The
race-condition problem is low severity and not worth taking
risks for.

I didn't force a catversion bump in 98fc31d64, so I won't do
so here either.

Reported-by: Dipesh Dhameliya <dipeshdhameliya125@gmail.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CABgZEgczOFicCJoqtrH9gbYMe_BV3Hq8zzCBRcMgmU6LRsihUA@mail.gmail.com
Backpatch-through: 18
2025-09-16 13:05:53 -04:00

127 lines
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<!--
doc/src/sgml/ref/drop_owned.sgml
PostgreSQL documentation
-->
<refentry id="sql-drop-owned">
<indexterm zone="sql-drop-owned">
<primary>DROP OWNED</primary>
</indexterm>
<refmeta>
<refentrytitle>DROP OWNED</refentrytitle>
<manvolnum>7</manvolnum>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP OWNED</refname>
<refpurpose>remove database objects owned by a database role</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
DROP OWNED BY { <replaceable class="parameter">name</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER } [, ...] [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP OWNED</command> drops all the objects within the current
database that are owned by one of the specified roles. Any
privileges granted to the given roles on objects in the current
database or on shared objects (databases, tablespaces, configuration
parameters) will also be revoked.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>
<para>
The name of a role whose objects will be dropped, and whose
privileges will be revoked.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</literal></term>
<listitem>
<para>
Automatically drop objects that depend on the affected objects,
and in turn all objects that depend on those objects
(see <xref linkend="ddl-depend"/>).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</literal></term>
<listitem>
<para>
Refuse to drop the objects owned by a role if any other database
objects depend on one of the affected objects. This is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
<command>DROP OWNED</command> is often used to prepare for the
removal of one or more roles. Because <command>DROP OWNED</command>
only affects the objects in the current database, it is usually
necessary to execute this command in each database that contains
objects owned by a role that is to be removed.
</para>
<para>
Using the <literal>CASCADE</literal> option might make the command
recurse to objects owned by other users.
</para>
<para>
The <link linkend="sql-reassign-owned"><command>REASSIGN OWNED</command></link> command is an alternative that
reassigns the ownership of all the database objects owned by one or
more roles. However, <command>REASSIGN OWNED</command> does not deal with
privileges for other objects.
</para>
<para>
Databases and tablespaces owned by the role(s) will not be removed.
</para>
<para>
See <xref linkend="role-removal"/> for more discussion.
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
The <command>DROP OWNED</command> command is a
<productname>PostgreSQL</productname> extension.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-reassign-owned"/></member>
<member><xref linkend="sql-droprole"/></member>
</simplelist>
</refsect1>
</refentry>