<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >droplang</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 8.0.11 Documentation" HREF="index.html"><LINK REL="UP" TITLE="PostgreSQL Client Applications" HREF="reference-client.html"><LINK REL="PREVIOUS" TITLE="dropdb" HREF="app-dropdb.html"><LINK REL="NEXT" TITLE="dropuser" HREF="app-dropuser.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="2007-02-02T03:57:22"></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" >PostgreSQL 8.0.11 Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="app-dropdb.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="app-dropdb.html" >Fast Backward</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="app-dropuser.html" >Fast Forward</A ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="app-dropuser.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="APP-DROPLANG" ></A ><SPAN CLASS="APPLICATION" >droplang</SPAN ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN46957" ></A ><H2 >Name</H2 >droplang -- remove a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > procedural language</DIV ><A NAME="AEN46961" ></A ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN46963" ></A ><H2 >Synopsis</H2 ><P ><TT CLASS="COMMAND" >droplang</TT > [<TT CLASS="REPLACEABLE" ><I >connection-option</I ></TT >...] <TT CLASS="REPLACEABLE" ><I >langname</I ></TT > [<TT CLASS="REPLACEABLE" ><I >dbname</I ></TT >]<BR><TT CLASS="COMMAND" >droplang</TT > [<TT CLASS="REPLACEABLE" ><I >connection-option</I ></TT >...] --list | -l <TT CLASS="REPLACEABLE" ><I >dbname</I ></TT > </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="R1-APP-DROPLANG-1" ></A ><H2 > Description </H2 ><P > <SPAN CLASS="APPLICATION" >droplang</SPAN > is a utility for removing an existing programming language from a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > database. <SPAN CLASS="APPLICATION" >droplang</SPAN > can drop any procedural language, even those not supplied by the <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > distribution. </P ><P > Although backend programming languages can be removed directly using several <ACRONYM CLASS="ACRONYM" >SQL</ACRONYM > commands, it is recommended to use <SPAN CLASS="APPLICATION" >droplang</SPAN > because it performs a number of checks and is much easier to use. See <A HREF="sql-droplanguage.html" ><I >DROP LANGUAGE</I ></A > for more. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN46992" ></A ><H2 >Options</H2 ><P > <SPAN CLASS="APPLICATION" >droplang</SPAN > accepts the following command line arguments: <P ></P ></P><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="REPLACEABLE" ><I >langname</I ></TT ></DT ><DD ><P > Specifies the name of the backend programming language to be removed. </P ></DD ><DT ><TT CLASS="OPTION" >[<SPAN CLASS="OPTIONAL" >-d</SPAN >] <TT CLASS="REPLACEABLE" ><I >dbname</I ></TT ></TT ><BR><TT CLASS="OPTION" >[<SPAN CLASS="OPTIONAL" >--dbname</SPAN >] <TT CLASS="REPLACEABLE" ><I >dbname</I ></TT ></TT ></DT ><DD ><P > Specifies from which database the language should be removed. The default is to use the database with the same name as the current system user. </P ></DD ><DT ><TT CLASS="OPTION" >-e</TT ><BR><TT CLASS="OPTION" >--echo</TT ></DT ><DD ><P > Display SQL commands as they are executed. </P ></DD ><DT ><TT CLASS="OPTION" >-l</TT ><BR><TT CLASS="OPTION" >--list</TT ></DT ><DD ><P > Show a list of already installed languages in the target database. </P ></DD ></DL ></DIV ><P> </P ><P > <SPAN CLASS="APPLICATION" >droplang</SPAN > also accepts the following command line arguments for connection parameters: <P ></P ></P><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="OPTION" >-h <TT CLASS="REPLACEABLE" ><I >host</I ></TT ></TT ><BR><TT CLASS="OPTION" >--host <TT CLASS="REPLACEABLE" ><I >host</I ></TT ></TT ></DT ><DD ><P > Specifies the host name of the machine on which the server is running. If host begins with a slash, it is used as the directory for the Unix domain socket. </P ></DD ><DT ><TT CLASS="OPTION" >-p <TT CLASS="REPLACEABLE" ><I >port</I ></TT ></TT ><BR><TT CLASS="OPTION" >--port <TT CLASS="REPLACEABLE" ><I >port</I ></TT ></TT ></DT ><DD ><P > Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections. </P ></DD ><DT ><TT CLASS="OPTION" >-U <TT CLASS="REPLACEABLE" ><I >username</I ></TT ></TT ><BR><TT CLASS="OPTION" >--username <TT CLASS="REPLACEABLE" ><I >username</I ></TT ></TT ></DT ><DD ><P > User name to connect as </P ></DD ><DT ><TT CLASS="OPTION" >-W</TT ><BR><TT CLASS="OPTION" >--password</TT ></DT ><DD ><P > Force password prompt. </P ></DD ></DL ></DIV ><P> </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN47064" ></A ><H2 >Environment</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="ENVAR" >PGDATABASE</TT ><BR><TT CLASS="ENVAR" >PGHOST</TT ><BR><TT CLASS="ENVAR" >PGPORT</TT ><BR><TT CLASS="ENVAR" >PGUSER</TT ></DT ><DD ><P > Default connection parameters </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN47078" ></A ><H2 >Diagnostics</H2 ><P > Most error messages are self-explanatory. If not, run <SPAN CLASS="APPLICATION" >droplang</SPAN > with the <TT CLASS="OPTION" >--echo</TT > option and see under the respective <ACRONYM CLASS="ACRONYM" >SQL</ACRONYM > command for details. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN47084" ></A ><H2 >Notes</H2 ><P > Use <A HREF="app-createlang.html" ><SPAN CLASS="APPLICATION" >createlang</SPAN ></A > to add a language. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN47088" ></A ><H2 >Examples</H2 ><P > To remove the language <TT CLASS="LITERAL" >pltcl</TT >: </P><PRE CLASS="SCREEN" ><SAMP CLASS="PROMPT" >$ </SAMP ><KBD CLASS="USERINPUT" >droplang pltcl dbname</KBD ></PRE ><P> </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN47095" ></A ><H2 >See Also</H2 ><A HREF="app-createlang.html" ><SPAN CLASS="APPLICATION" >createlang</SPAN ></A >, <A HREF="sql-droplanguage.html" ><I >DROP LANGUAGE</I ></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="app-dropdb.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="app-dropuser.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><SPAN CLASS="APPLICATION" >dropdb</SPAN ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="reference-client.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><SPAN CLASS="APPLICATION" >dropuser</SPAN ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >