postgresql-common(1) [debian man page]

PG_WRAPPER(1)						 Debian PostgreSQL infrastructure					     PG_WRAPPER(1)

NAME

       pg_wrapper - wrapper for PostgreSQL client commands

SYNOPSIS

       client-program [--cluster version/cluster] [...]

       (client-program: psql, createdb, dropuser, and all other client programs installed in /usr/lib/postgresql/version/bin).

DESCRIPTION

       This program is run only as a link to names which correspond to PostgreSQL programs in /usr/lib/postgresql/version/bin. It determines the
       configured cluster and database for the user and calls the appropriate version of the desired program to connect to that cluster and
       database, supplying any specified options to that command.

       The target cluster is selected by the following means, in descending order of precedence:

       1.  explicit specification with the --host option

       2.  explicit specification with the --cluster option

       3.  if the PGHOST environment variable is set, no further cluster selection is performed. The default PostgreSQL version and port number
	   (from the command line, the environment variable PGPORT, or default 5432) will be used.

       4.  explicit specification with the PGCLUSTER environment variable

       5.  matching entry in ~/.postgresqlrc (see postgresqlrc(5)), if that file exists

       6.  matching entry in /etc/postgresql-common/user_clusters (see user_clusters(5)), if that file exists

       7.  If only one local cluster exists, that one will be selected.

       8.  If several local clusters exist, the one listening on the default port 5432 will be selected.

       If none of these rules match, pg_wrapper aborts with an error.

OPTIONS

       --cluster version/cluster
	   cluster is either the name of a local cluster, or takes the form host:port for a remote cluster. If port is left empty (i. e. you just
	   specify host:), it defaults to 5432.

ENVIRONMENT

       PGCLUSTER
	   If $PGCLUSTER is set, its value (of the form version/cluster) specifies the desired cluster, similar to the --cluster option. However,
	   if --cluster is specified, it overrides the value of $PGCLUSTER.

       PG_CLUSTER_CONF_ROOT
	   This specifies an alternative base directory for cluster configurations. This is usually /etc/postgresql/, but for testing/development
	   purposes you can change this to point to e. g. your home directory, so that you can use the postgresql-common tools without root
	   privileges.

FILES

       /etc/postgresql-common/user_clusters
	   stores the default cluster and database for users and groups as set by the administrators.

       $HOME/.postgresqlrc
	   stores defaults set by the user himself.

SEE ALSO

       user_clusters(5), postgresqlrc(5)

AUTHOR

       Martin Pitt <mpitt@debian.org>

Debian								    2013-01-04							     PG_WRAPPER(1)

CLUSTERDB(1)						  PostgreSQL Client Applications					      CLUSTERDB(1)

NAME

       clusterdb - cluster a PostgreSQL database

SYNOPSIS

       clusterdb [ connection-options... ] [ --table | -t table  ] [ dbname ]

       clusterdb [ connection-options... ] [ --all | -a ]

DESCRIPTION

       clusterdb  is a utility for reclustering tables in a PostgreSQL database. It finds tables that have previously been clustered, and clusters
       them again on the same index that was last used. Tables that have never been clustered are not touched.

       clusterdb is a shell script wrapper around the backend command CLUSTER [cluster(7)] via the PostgreSQL interactive terminal psql(1).  There
       is  no effective difference between clustering databases via this or other methods.  psql must be found by the script and a database server
       must be running at the targeted host. Also, any default settings and environment variables  available  to  psql	and  the  libpq  front-end
       library do apply.

       clusterdb  might  need  to  connect  several  times  to	the PostgreSQL server, asking for a password each time. It is convenient to have a
       $HOME/.pgpass file in such cases.

OPTIONS

       clusterdb accepts the following command-line arguments:

       -a

       --all  Cluster all databases.

       [-d] dbname

       [--dbname] dbname
	      Specifies the name of the database to be clustered.  If this is not specified and -a (or --all) is not used, the	database  name	is
	      read from the environment variable PGDATABASE. If that is not set, the user name specified for the connection is used.

       -e

       --echo Echo the commands that clusterdb generates and sends to the server.

       -q

       --quiet
	      Do not display a response.

       -t table

       --table table
	      Clusters table only.

       clusterdb also accepts the following command-line arguments for connection parameters:

       -h host

       --host host
	      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 port

       --port port
	      Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections.

       -U username

       --username username
	      User name to connect as

       -W

       --password
	      Force password prompt.

DIAGNOSTICS

       CLUSTER
	      Everything went well.

       clusterdb: Cluster failed.
	      Something went wrong. clusterdb is only a wrapper script. See CLUSTER [cluster(7)] and psql(1) for a detailed  discussion  of  error
	      messages and potential problems. Note that this message may appear once per table to be clustered.

ENVIRONMENT

       PGDATABASE

       PGHOST

       PGPORT

       PGUSER Default connection parameters.

EXAMPLES

       To cluster the database test:

       $ clusterdb test

       To cluster a single table foo in a database named xyzzy:

       $ clusterdb --table foo xyzzy

SEE ALSO

       CLUSTER [cluster(7)]

Application							    2002-11-22							      CLUSTERDB(1)