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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ALTER CONVERSION</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 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="ALTER COLLATION" HREF="sql-altercollation.html"><LINK REL="NEXT" TITLE="ALTER DATABASE" HREF="sql-alterdatabase.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="2017-11-06T22:43:11"></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 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="ALTER COLLATION" HREF="sql-altercollation.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 DATABASE" HREF="sql-alterdatabase.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-ALTERCONVERSION" ></A >ALTER CONVERSION</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN62582" ></A ><H2 >Name</H2 >ALTER CONVERSION -- change the definition of a conversion</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN62587" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >ALTER CONVERSION <TT CLASS="REPLACEABLE" ><I >name</I ></TT > RENAME TO <TT CLASS="REPLACEABLE" ><I >new_name</I ></TT > ALTER CONVERSION <TT CLASS="REPLACEABLE" ><I >name</I ></TT > OWNER TO <TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT > ALTER CONVERSION <TT CLASS="REPLACEABLE" ><I >name</I ></TT > SET SCHEMA <TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT ></PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN62595" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >ALTER CONVERSION</TT > changes the definition of a conversion. </P ><P > You must own the conversion to use <TT CLASS="COMMAND" >ALTER CONVERSION</TT >. 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 conversion's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the conversion. However, a superuser can alter ownership of any conversion anyway.) </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN62602" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >name</I ></TT ></DT ><DD ><P > The name (optionally schema-qualified) of an existing conversion. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_name</I ></TT ></DT ><DD ><P > The new name of the conversion. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_owner</I ></TT ></DT ><DD ><P > The new owner of the conversion. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >new_schema</I ></TT ></DT ><DD ><P > The new schema for the conversion. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN62625" ></A ><H2 >Examples</H2 ><P > To rename the conversion <TT CLASS="LITERAL" >iso_8859_1_to_utf8</TT > to <TT CLASS="LITERAL" >latin1_to_unicode</TT >: </P><PRE CLASS="PROGRAMLISTING" >ALTER CONVERSION iso_8859_1_to_utf8 RENAME TO latin1_to_unicode;</PRE ><P> </P ><P > To change the owner of the conversion <TT CLASS="LITERAL" >iso_8859_1_to_utf8</TT > to <TT CLASS="LITERAL" >joe</TT >: </P><PRE CLASS="PROGRAMLISTING" >ALTER CONVERSION iso_8859_1_to_utf8 OWNER TO joe;</PRE ><P></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN62635" ></A ><H2 >Compatibility</H2 ><P > There is no <TT CLASS="COMMAND" >ALTER CONVERSION</TT > statement in the SQL standard. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN62639" ></A ><H2 >See Also</H2 ><A HREF="sql-createconversion.html" >CREATE CONVERSION</A >, <A HREF="sql-dropconversion.html" >DROP CONVERSION</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-altercollation.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-alterdatabase.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ALTER COLLATION</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 DATABASE</TD ></TR ></TABLE ></DIV ></BODY ></HTML >