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Implement DROP OWNED and REASSIGN OWNED. These new commands facilitate the

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process of dropping roles by dropping objects owned by them and privileges
granted to them, or giving the owned objects to someone else, through the
use of the data stored in the new pg_shdepend catalog.

Some refactoring of the GRANT/REVOKE code was needed, as well as ALTER OWNER
code.  Further cleanup of code duplication in the GRANT code seems necessary.

Implemented by me after an idea from Tom Lane, who also provided various kind
of implementation advice.

Regression tests pass.  Some tests for the new functionality are also added,
as well as rudimentary documentation.
This commit is contained in:
Alvaro Herrera
2005-11-21 12:49:33 +00:00
parent c52795d18a
commit cec3b0a9e6
31 changed files with 1532 additions and 377 deletions
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89
doc/src/sgml/ref/reassign_owned.sgml Normal file
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<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/reassign_owned.sgml,v 1.1 2005/11/21 12:49:30 alvherre Exp $
PostgreSQL documentation
-->
<refentry id="SQL-REASSIGN-OWNED">
<refmeta>
<refentrytitle id="SQL-REASSIGN-OWNED-TITLE">REASSIGN OWNED</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>REASSIGN OWNED</refname>
<refpurpose>change ownership of database objects owned by a database role</refpurpose>
</refnamediv>
<indexterm zone="sql-reassign-owned">
<primary>REASSIGN OWNED</primary>
</indexterm>
<refsynopsisdiv>
<synopsis>
REASSIGN OWNED <replaceable class="PARAMETER">old_role</replaceable> [, ...] TO <replaceable class="PARAMETER">new_role</replaceable>
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
The <command>REASSIGN OWNED</command> instructs the system to change
the ownership of the database objects owned by one of the old_roles,
to new_role.
</para>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
The <command>REASSIGN OWNED</command> command is mostly used in preparation to
drop the roles. See the <command>DROP OWNED</command> command for an
alternative that drops the objects.
</para>
<para>
The <command>REASSIGN OWNED</command> command does not affect the privileges
granted to the old_roles in objects not owned by them. Use
<command>DROP OWNED</command> to remove them.
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
The <command>REASSIGN OWNED</command> statement is a
<productname>PostgreSQL</productname> extension.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-drop-owned" endterm="sql-drop-owned-title"></member>
<member><xref linkend="sql-droprole" endterm="sql-droprole-title"></member>
</simplelist>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:nil
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"../reference.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:"/usr/lib/sgml/catalog"
sgml-local-ecat-files:nil
End:
-->