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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 >DROP USER MAPPING</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="DROP USER" HREF="sql-dropuser.html"><LINK REL="NEXT" TITLE="DROP VIEW" HREF="sql-dropview.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="DROP USER" HREF="sql-dropuser.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="DROP VIEW" HREF="sql-dropview.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-DROPUSERMAPPING" ></A >DROP USER MAPPING</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN75120" ></A ><H2 >Name</H2 >DROP USER MAPPING -- remove a user mapping for a foreign server</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN75125" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >DROP USER MAPPING [ IF EXISTS ] FOR { <TT CLASS="REPLACEABLE" ><I >user_name</I ></TT > | USER | CURRENT_USER | PUBLIC } SERVER <TT CLASS="REPLACEABLE" ><I >server_name</I ></TT ></PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN75129" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >DROP USER MAPPING</TT > removes an existing user mapping from foreign server. </P ><P > The owner of a foreign server can drop user mappings for that server for any user. Also, a user can drop a user mapping for his own user name if <TT CLASS="LITERAL" >USAGE</TT > privilege on the server has been granted to the user. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN75135" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="LITERAL" >IF EXISTS</TT ></DT ><DD ><P > Do not throw an error if the user mapping does not exist. A notice is issued in this case. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >user_name</I ></TT ></DT ><DD ><P > User name of the mapping. <TT CLASS="LITERAL" >CURRENT_USER</TT > and <TT CLASS="LITERAL" >USER</TT > match the name of the current user. <TT CLASS="LITERAL" >PUBLIC</TT > is used to match all present and future user names in the system. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >server_name</I ></TT ></DT ><DD ><P > Server name of the user mapping. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN75156" ></A ><H2 >Examples</H2 ><P > Drop a user mapping <TT CLASS="LITERAL" >bob</TT >, server <TT CLASS="LITERAL" >foo</TT > if it exists: </P><PRE CLASS="PROGRAMLISTING" >DROP USER MAPPING IF EXISTS FOR bob SERVER foo;</PRE ><P></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN75162" ></A ><H2 >Compatibility</H2 ><P > <TT CLASS="COMMAND" >DROP USER MAPPING</TT > conforms to ISO/IEC 9075-9 (SQL/MED). The <TT CLASS="LITERAL" >IF EXISTS</TT > clause is a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > extension. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN75168" ></A ><H2 >See Also</H2 ><A HREF="sql-createusermapping.html" >CREATE USER MAPPING</A >, <A HREF="sql-alterusermapping.html" >ALTER USER MAPPING</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-dropuser.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-dropview.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >DROP USER</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" >DROP VIEW</TD ></TR ></TABLE ></DIV ></BODY ></HTML >