<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ALTER LARGE OBJECT</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.6.21 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="ALTER LANGUAGE" HREF="sql-alterlanguage.html"><LINK REL="NEXT" TITLE="ALTER MATERIALIZED VIEW" HREF="sql-altermaterializedview.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2021-02-27T18:26:08"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="4" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.6.21 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="ALTER LANGUAGE" HREF="sql-alterlanguage.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="ALTER MATERIALIZED VIEW" HREF="sql-altermaterializedview.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-ALTERLARGEOBJECT" ></A >ALTER LARGE OBJECT</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN74697" ></A ><H2 >Name</H2 >ALTER LARGE OBJECT -- change the definition of a large object</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN74700" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >ALTER LARGE OBJECT <TT CLASS="REPLACEABLE" ><I >large_object_oid</I ></TT > OWNER TO { <TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT > | CURRENT_USER | SESSION_USER }</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN74704" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >ALTER LARGE OBJECT</TT > changes the definition of a large object. </P ><P > You must own the large object to use <TT CLASS="COMMAND" >ALTER LARGE OBJECT</TT >. To alter the owner, you must also be a direct or indirect member of the new owning role. (However, a superuser can alter any large object anyway.) Currently, the only functionality is to assign a new owner, so both restrictions always apply. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN74710" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >large_object_oid</I ></TT ></DT ><DD ><P > OID of the large object to be altered </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT ></DT ><DD ><P > The new owner of the large object </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN74723" ></A ><H2 >Compatibility</H2 ><P > There is no <TT CLASS="COMMAND" >ALTER LARGE OBJECT</TT > statement in the SQL standard. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN74727" ></A ><H2 >See Also</H2 ><A HREF="largeobjects.html" >Chapter 33</A ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-alterlanguage.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-altermaterializedview.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ALTER LANGUAGE</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >ALTER MATERIALIZED VIEW</TD ></TR ></TABLE ></DIV ></BODY ></HTML >