Force <application>reindexdb</application> to prompt for a
password before connecting to a database.
</para>
<para>
This option is never essential, since
<application>reindexdb</application> will automatically prompt
for a password if the server demands password authentication.
However, <application>reindexdb</application> will waste a
connection attempt finding out that the server wants a password.
In some cases it is worth typing <option>-W</option> to avoid the extra
connection attempt.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--maintenance-db=<replaceable class="parameter">dbname</replaceable></option></term>
<listitem>
<para>
When the <option>-a</option>/<option>--all</option> is used, connect
to this database to gather the list of databases to reindex.
If not specified, the <literal>postgres</literal> database will be used,
or if that does not exist, <literal>template1</literal> will be used.
This can be a <link linkend="libpq-connstring">connection
string</link>. If so, connection string parameters will override any
conflicting command line options. Also, connection string parameters
other than the database name itself will be re-used when connecting
to other databases.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1>
<title>Environment</title>
<variablelist>
<varlistentry>
<term><envar>PGDATABASE</envar></term>
<term><envar>PGHOST</envar></term>
<term><envar>PGPORT</envar></term>
<term><envar>PGUSER</envar></term>
<listitem>
<para>
Default connection parameters
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><envar>PG_COLOR</envar></term>
<listitem>
<para>
Specifies whether to use color in diagnostic messages. Possible values
are <literal>always</literal>, <literal>auto</literal> and
<literal>never</literal>.
</para>
</listitem>
</varlistentry>
</variablelist>
<para>
This utility, like most other <productname>PostgreSQL</productname> utilities,
also uses the environment variables supported by <application>libpq</application>
(see <xref linkend="libpq-envars"/>).
</para>
</refsect1>
<refsect1>
<title>Diagnostics</title>
<para>
In case of difficulty, see <xref linkend="sql-reindex"/>
and <xref linkend="app-psql"/> for
discussions of potential problems and error messages.
The database server must be running at the
targeted host. Also, any default connection settings and environment
variables used by the <application>libpq</application> front-end
library will apply.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
To reindex the database <literal>test</literal>:
<screen>
<prompt>$ </prompt><userinput>reindexdb test</userinput>
</screen>
</para>
<para>
To reindex the table <literal>foo</literal> and the index
<literal>bar</literal> in a database named <literal>abcd</literal>:
<screen>
<prompt>$ </prompt><userinput>reindexdb --table=foo --index=bar abcd</userinput>
</screen></para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-reindex"/></member>
</simplelist>
</refsect1>
</refentry>