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<REFENTRY ID="SQL-DROPINDEX">
<REFMETA>
<REFENTRYTITLE>
DROP INDEX
</REFENTRYTITLE>
<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
</REFMETA>
<REFNAMEDIV>
<REFNAME>
DROP INDEX
</REFNAME>
<REFPURPOSE>
Removes an index from a database
</REFPURPOSE>
<REFSYNOPSISDIV>
<REFSYNOPSISDIVINFO>
<DATE>1998-04-15</DATE>
</REFSYNOPSISDIVINFO>
<SYNOPSIS>
DROP INDEX <REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE>
</SYNOPSIS>
<REFSECT2 ID="R2-SQL-DROPINDEX-1">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue><REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE></ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The name of the index to remove.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
<REFSECT2 ID="R2-SQL-DROPINDEX-2">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Outputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>DROP</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The message returned if the index is successfully dropped.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
<ReturnValue>ERROR: index "<REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE>" nonexistent</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
This message occurs if it is impossible to drop the index
because it does not exist.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
</REFSYNOPSISDIV>
<REFSECT1 ID="R1-SQL-DROPINDEX-1">
<REFSECT1INFO>
<DATE>1998-04-15</DATE>
</REFSECT1INFO>
<TITLE>
Description
</TITLE>
<PARA>
<command>DROP INDEX</command> drops an existing index from the database
system. To execute this command you must be the owner of
the index.
</PARA>
<REFSECT2 ID="R2-SQL-DROPINDEX-3">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Notes
</TITLE>
<PARA>
<command>DROP INDEX</command> is a PostgreSQL language extension.
</PARA>
<PARA>
Refer to the <command>CREATE INDEX</command> statement for
inforamtion on how to create indexes.
</PARA>
</REFSECT2>
<REFSECT1 ID="R1-SQL-DROPINDEX-2">
<TITLE>
Usage
</TITLE>
<PARA>
This command will remove the <literal>title_idx</literal> index:
</PARA>
<ProgramListing>
DROP INDEX title_idx;
</ProgramListing>
</REFSECT1>
<REFSECT1 ID="R1-SQL-DROPINDEX-3">
<TITLE>
Compatibility
</TITLE>
<PARA>
</PARA>
<REFSECT2 ID="R2-SQL-DROPINDEX-4">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
SQL92
</TITLE>
<PARA>
There is no <command>DROP INDEX</command> statement on SQL92.
</PARA>
</refsect2>
</refsect1>
</REFENTRY>
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