<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ALTER TYPE</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 9.0.15 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="ALTER TRIGGER" HREF="sql-altertrigger.html"><LINK REL="NEXT" TITLE="ALTER USER" HREF="sql-alteruser.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="2014-01-24T13:16:52"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.0.15 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="ALTER TRIGGER" HREF="sql-altertrigger.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 USER" HREF="sql-alteruser.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-ALTERTYPE" ></A >ALTER TYPE</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN57916" ></A ><H2 >Name</H2 >ALTER TYPE -- change the definition of a type </DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN57921" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >ALTER TYPE <TT CLASS="REPLACEABLE" ><I >name</I ></TT > RENAME TO <TT CLASS="REPLACEABLE" ><I >new_name</I ></TT > ALTER TYPE <TT CLASS="REPLACEABLE" ><I >name</I ></TT > OWNER TO <TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT > ALTER TYPE <TT CLASS="REPLACEABLE" ><I >name</I ></TT > SET SCHEMA <TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT ></PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN57929" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >ALTER TYPE</TT > changes the definition of an existing type. </P ><P > You must own the type to use <TT CLASS="COMMAND" >ALTER TYPE</TT >. To change the schema of a type, you must also have <TT CLASS="LITERAL" >CREATE</TT > privilege on the new schema. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have <TT CLASS="LITERAL" >CREATE</TT > privilege on the type's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the type. However, a superuser can alter ownership of any type anyway.) </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN57937" ></A ><H2 >Parameters</H2 ><P > <P ></P ></P><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >name</I ></TT ></DT ><DD ><P > The name (possibly schema-qualified) of an existing type to alter. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_name</I ></TT ></DT ><DD ><P > The new name for the type. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT ></DT ><DD ><P > The user name of the new owner of the type. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT ></DT ><DD ><P > The new schema for the type. </P ></DD ></DL ></DIV ><P> </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN57961" ></A ><H2 >Examples</H2 ><P > To rename a data type: </P><PRE CLASS="PROGRAMLISTING" >ALTER TYPE electronic_mail RENAME TO email;</PRE ><P> </P ><P > To change the owner of the type <TT CLASS="LITERAL" >email</TT > to <TT CLASS="LITERAL" >joe</TT >: </P><PRE CLASS="PROGRAMLISTING" >ALTER TYPE email OWNER TO joe;</PRE ><P> </P ><P > To change the schema of the type <TT CLASS="LITERAL" >email</TT > to <TT CLASS="LITERAL" >customers</TT >: </P><PRE CLASS="PROGRAMLISTING" >ALTER TYPE email SET SCHEMA customers;</PRE ><P> </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN57973" ></A ><H2 >Compatibility</H2 ><P > There is no <TT CLASS="COMMAND" >ALTER TYPE</TT > statement in the SQL standard. </P ></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-altertrigger.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-alteruser.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ALTER TRIGGER</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 USER</TD ></TR ></TABLE ></DIV ></BODY ></HTML >