mirror of https://github.com/postgres/postgres
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<REFENTRY ID="APP-VACUUMDB"> |
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<REFMETA> |
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<REFENTRYTITLE> |
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<application>vacuumdb</application> |
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</REFENTRYTITLE> |
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<REFMISCINFO>Application</REFMISCINFO> |
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</REFMETA> |
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<REFNAMEDIV> |
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<REFNAME id="vacuumdb"> |
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<application>vacuumdb</application> |
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</REFNAME> |
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<REFPURPOSE> |
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Clean and analyze a <productname>Postgres</productname> database |
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</REFPURPOSE> |
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<REFSYNOPSISDIV> |
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<REFSYNOPSISDIVINFO> |
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<DATE>1998-10-04</DATE> |
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</REFSYNOPSISDIVINFO> |
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<SYNOPSIS> |
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vacuumdb [ --analyze | -z ] [ --verbose | -v ] [ <replaceable class="parameter">dbname</replaceable> ] |
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vacuumdb [ -h <replaceable class="parameter">host</replaceable> ] [ -p <replaceable class="parameter">port</replaceable> ] |
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[ --table '<replaceable class="parameter">table</replaceable> [ ( <replaceable class="parameter">column</replaceable> [,...] ) ]' ] |
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[ <replaceable class="parameter">dbname</replaceable> ] |
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</SYNOPSIS> |
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|
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<REFSECT2 ID="R2-APP-VACUUMDB-1"> |
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<REFSECT2INFO> |
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<DATE>1998-10-04</DATE> |
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</REFSECT2INFO> |
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<TITLE> |
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Inputs |
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</TITLE> |
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<PARA> |
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<application>vacuumdb</application> accepts the following command line arguments: |
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|
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<variablelist> |
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<varlistentry> |
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<term> |
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<replaceable class="parameter">dbname</replaceable> |
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</term> |
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<listitem> |
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<para> |
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Specifies the name of the database to be cleaned or analyzed. |
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<replaceable class="parameter">dbname</replaceable> |
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defaults to the value of the |
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<envar>USER</envar> |
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environment variable. |
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|
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<varlistentry> |
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<term> |
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--analyze |
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</term> |
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<term> |
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-z |
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</term> |
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<listitem> |
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<para> |
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Calculate statistics on the database for use by the optimizer. |
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|
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<varlistentry> |
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<term> |
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--verbose |
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</term> |
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<term> |
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-v |
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</term> |
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<listitem> |
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<para> |
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Print detailed information during processing. |
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|
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<varlistentry> |
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<term> |
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--table <replaceable class="parameter">table</replaceable> [ (<replaceable class="parameter">column</replaceable> [,...]) ] |
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</term> |
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<term> |
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-t <replaceable class="parameter">table</replaceable> [ (<replaceable class="parameter">column</replaceable> [,...]) ] |
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</term> |
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<listitem> |
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<para> |
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Clean or analyze <replaceable class="parameter">table</replaceable> only. |
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Column names may be specified only in conjunction with |
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the <option>--analyze</option> option. |
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|
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</variablelist> |
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|
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<para> |
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<application>vacuumdb</application> also accepts |
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the following command line arguments for connection parameters: |
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|
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<variablelist> |
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<varlistentry> |
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<term> |
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-h <replaceable class="parameter">host</replaceable> |
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</term> |
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<listitem> |
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<para> |
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Specifies the hostname of the machine on which the |
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<application>postmaster</application> |
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is running. Defaults to using a local Unix domain socket |
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rather than an IP connection.. |
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|
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<varlistentry> |
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<term> |
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-p <replaceable class="parameter">port</replaceable> |
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</term> |
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<listitem> |
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<para> |
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Specifies the Internet TCP/IP port or local Unix domain socket file |
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extension on which the <application>postmaster</application> |
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is listening for connections. The port number defaults to 5432, |
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or the value of the <envar>PGPORT</envar> |
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environment variable (if set). |
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|
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<varlistentry> |
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<term> |
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-u |
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</term> |
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<listitem> |
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<para> |
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Use password authentication. |
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Prompts for |
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<replaceable class="parameter">username</replaceable> |
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and <replaceable class="parameter">password</replaceable>. |
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|
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</variablelist> |
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|
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<REFSECT2 ID="R2-APP-VACUUMDB-2"> |
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<REFSECT2INFO> |
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<DATE>1998-10-04</DATE> |
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</REFSECT2INFO> |
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<TITLE> |
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Outputs |
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</TITLE> |
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<PARA> |
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<application>vacuumdb</application> executes a <command>VACUUM</command> command |
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on the specified database, so has not explicit external output. |
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|
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<variablelist> |
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<varlistentry> |
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<term> |
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ERROR: Can't vacuum columns, only tables. You can 'vacuum analyze' columns. |
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vacuumdb: database vacuum failed on <replaceable class="parameter">dbname</replaceable>. |
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<listitem> |
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<para> |
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The non-analyze mode requires cleaning full tables or databases. |
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Individual columns may be specified only when analyzing a specific table. |
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|
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<varlistentry> |
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<term> |
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Connection to database 'template1' failed. |
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connectDB() failed: Is the postmaster running and accepting connections |
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at 'UNIX Socket' on port '<replaceable class="parameter">port</replaceable>'? |
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<listitem> |
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<para> |
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<application>vacuumdb</application> could not attach to the |
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<application>postmaster</application> |
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process on the specified host and port. If you see this message, |
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ensure that the <application>postmaster</application> |
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is running on the proper host and that you have specified the proper |
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port. If your site uses an authentication system, ensure that you |
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have obtained the required authentication credentials. |
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|
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<varlistentry> |
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<term> |
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Connection to database '<replaceable class="parameter">dbname</replaceable>' failed. |
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FATAL 1: SetUserId: user '<replaceable class="parameter">username</replaceable>' is not in 'pg_shadow' |
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<listitem> |
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<para> |
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You do not have a valid entry in the relation <literal>pg_shadow</literal> |
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and and will not be allowed to access <productname>Postgres</productname>. |
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Contact your <productname>Postgres</productname> administrator. |
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|
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</variablelist> |
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|
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<note> |
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<para> |
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<application>vacuumdb</application> internally executes a |
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<command>VACUUM</command> <acronym>SQL</acronym> statement. |
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If you have problems running <application>vacuumdb</application>, |
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make sure you are able to run <command>VACUUM</command> on the database using, for |
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example, <application>psql</application>. |
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</note> |
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|
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<REFSECT1 ID="R1-APP-VACUUMDB-1"> |
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<REFSECT1INFO> |
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<DATE>1998-10-04</DATE> |
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</REFSECT1INFO> |
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<TITLE> |
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Description |
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</TITLE> |
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|
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<PARA> |
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<application>vacuumdb</application> is a utility for cleaning a |
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<productname>Postgres</productname> database. |
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<application>vacuumdb</application> will also generate internal statistics |
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used by the <productname>Postgres</productname> query optimizer. |
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|
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<REFSECT1 ID="R1-APP-VACUUMDB-2"> |
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<REFSECT1INFO> |
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<DATE>1998-10-04</DATE> |
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</REFSECT1INFO> |
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<TITLE> |
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Notes |
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</TITLE> |
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|
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<para> |
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See <xref linkend="vacuum" endterm="vacuum"> for more details. |
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|
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<REFSECT1 ID="R1-APP-VACUUMDB-3"> |
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<REFSECT1INFO> |
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<DATE>1998-10-04</DATE> |
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</REFSECT1INFO> |
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<TITLE> |
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Usage |
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</TITLE> |
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<PARA> |
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To clean a database of the same name as the user: |
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|
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<programlisting> |
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% vacuumdb |
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</programlisting> |
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|
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<para> |
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To analyze a database named <literal>bigdb</literal> for the optimizer: |
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|
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<programlisting> |
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% vacuumdb --analyze bigdb |
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</programlisting> |
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|
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<para> |
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To analyze a single column <literal>bar</literal> in table <literal>foo</literal> |
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in a database named <literal>xyzzy</literal> for the optimizer: |
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|
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<programlisting> |
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% vacuumdb --analyze --verbose --table 'foo(bar)' xyzzy |
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</programlisting> |
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|
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</REFENTRY> |
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<!-- Keep this comment at the end of the file |
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Local variables: |
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mode: sgml |
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sgml-omittag:t |
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sgml-shorttag:t |
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sgml-minimize-attributes:nil |
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sgml-always-quote-attributes:t |
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sgml-indent-step:1 |
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sgml-indent-data:t |
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sgml-parent-document:nil |
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sgml-default-dtd-file:"../reference.ced" |
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sgml-exposed-tags:nil |
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sgml-local-catalogs:"/usr/lib/sgml/catalog" |
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sgml-local-ecat-files:nil |
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End: |
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--> |
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