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authorItagaki Takahiro <itagaki.takahiro@gmail.com>2009-12-11 03:34:57 +0000
committerItagaki Takahiro <itagaki.takahiro@gmail.com>2009-12-11 03:34:57 +0000
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Add large object access control.
A new system catalog pg_largeobject_metadata manages ownership and access privileges of large objects. KaiGai Kohei, reviewed by Jaime Casanova.
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+<refentry id="SQL-ALTERLARGEOBJECT">
+ <refmeta>
+ <refentrytitle id="SQL-ALTERLARGEOBJECT-title">ALTER LARGE OBJECT</refentrytitle>
+ <manvolnum>7</manvolnum>
+ <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+ <refname>ALTER LARGE OBJECT</refname>
+ <refpurpose>change the definition of a large object</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-alterlargeobject">
+ <primary>ALTER LARGE OBJECT</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+ALTER LARGE OBJECT <replaceable class="PARAMETER">large_object_oid</replaceable> OWNER TO <replaceable>new_owner</replaceable>
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <command>ALTER LARGE OBJECT</command> changes the definition of a
+ large object. The only functionality is to assign a new owner.
+ You must be superuser or owner of the large object to use
+ <command>ALTER LARGE OBJECT</command>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Parameters</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><replaceable>large_object_oid</replaceable></term>
+ <listitem>
+ <para>
+ OID of the large object to be altered
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable>new_owner</replaceable></term>
+ <listitem>
+ <para>
+ The new owner of the large object
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ There is no <command>ALTER LARGE OBJECT</command> statement in the SQL
+ standard.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="largeObjects" endterm="largeObjects-title"></member>
+ </simplelist>
+ </refsect1>
+
+</refentry>