<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >DROP INDEX</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="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="DROP GROUP" HREF="sql-dropgroup.html"><LINK REL="NEXT" TITLE="DROP LANGUAGE" HREF="sql-droplanguage.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="sql-dropgroup.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-dropgroup.html" >Fast Backward</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="sql-droplanguage.html" >Fast Forward</A ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="sql-droplanguage.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-DROPINDEX" ></A >DROP INDEX</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN42247" ></A ><H2 >Name</H2 >DROP INDEX -- remove an index</DIV ><A NAME="AEN42250" ></A ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN42252" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >DROP INDEX <TT CLASS="REPLACEABLE" ><I >name</I ></TT > [, ...] [ CASCADE | RESTRICT ]</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN42255" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >DROP INDEX</TT > drops an existing index from the database system. To execute this command you must be the owner of the index. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN42259" ></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 index to remove. </P ></DD ><DT ><TT CLASS="LITERAL" >CASCADE</TT ></DT ><DD ><P > Automatically drop objects that depend on the index. </P ></DD ><DT ><TT CLASS="LITERAL" >RESTRICT</TT ></DT ><DD ><P > Refuse to drop the index if any objects depend on it. This is the default. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN42277" ></A ><H2 >Examples</H2 ><P > This command will remove the index <TT CLASS="LITERAL" >title_idx</TT >: </P><PRE CLASS="PROGRAMLISTING" >DROP INDEX title_idx;</PRE ><P> </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN42282" ></A ><H2 >Compatibility</H2 ><P > <TT CLASS="COMMAND" >DROP INDEX</TT > is a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > language extension. There are no provisions for indexes in the SQL standard. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN42287" ></A ><H2 >See Also</H2 ><A HREF="sql-createindex.html" ><I >CREATE INDEX</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="sql-dropgroup.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-droplanguage.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >DROP GROUP</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 LANGUAGE</TD ></TR ></TABLE ></DIV ></BODY ></HTML >