postgresql-contrib-7.4 1:7.4.10-2 (i386 binary) in ubuntu dapper

additional facilities for PostgreSQL
 The PostgreSQL contrib package provides several additional features
 for the PostgreSQL database. This version is built to work with the
 server package postgresql-7.4. contrib often serves as a testbed for
 features before they are adopted into PostgreSQL proper:
 .
  adddepend - Process databases upgraded from PostgreSQL 7.2 and earlier
                   to add dependency information that 7.3+ creates from the
                   start
  array - Array iterator functions
  btree_gist - B-Tree indexing using GiST (Generalised Search Tree)
  chkpass - Password type for storing and comparing encrypted passwords
  cube - Type for n-dimensional "cubes"
  dbase - Inserts the contents of an xBase-style .dbf file into a
                   PostgreSQL table
  dblink - Functions to return results from a remote database
  dbmirror - Trigger-based databaase mirroring
  dbsize - Report filesystem space used by a database
  earthdistance - Operator for computing the distance (in miles) between
                   two points on the earth's surface
  findoidjoins - Finds the joins used by oid columns by examining the actual
                   values in the oid columns and row oids.
  fulltextindex - Full text indexing using triggers
  fuzzystrmatch - Functions for fuzzy string comparison (including Soundex)
  intagg - Integer aggregator/enumerator
  intarray - RD-tree data structure using GiST index
  isbn_issn - Type extensions for ISBN (books) and ISSN (serials)
  lo - Large Object maintenance
  ltree - data types, indexed access methods and queries for data
                   organized as a tree-like structures.
  mac - Maps MAC addresses to manufacture names
  miscutil - Some utility functions
  mysql - Conversion utilities for MySQL dumps
  noupdate - Trigger to prevent updates on single columns
  oid2name - Maps oids to table names
  oracle - Conversion utility for Oracle database schemas
  pg_autovacuum - Automatic tidying of deleted tuples in the background.
  pg_dumplo - Large Object dumper
  pg_logger - Stdin to syslog gateway
  pg_upgrade - Migrate 7.1 database for initdb without requiring a full
                   dump and reload. Experimental!
  pgbench - A simple program to run a benchmark test
  pgcrypto - Cryptographic functions
  pgstattuple - Returns the percentage of dead tuples in a table; this
                   indicates whether a vacuum is required.
  reindexdb - Script to destroy and rebuild indexes, thus reclaiming
                   space that vacuum does not reclaim
  retep - Java utilities for use with JDBC
  rserv - Database replication
  rtree_gist - R-Tree indexing using Generalised Search Tree algorithms
  seg - Type representing laboratory measurements as floating-
                   point intervals
  spi - PostgreSQL Server Programming Interface; 4 examples of
                   its use:
                   autoinc - A function for implementing AUTOINCREMENT/
                                IDENTITY
                   insert_username - function for inserting user names
                   moddatetime - Update modification timestamps
                   refint - Functions for implementing referential
                                integrity (foreign keys). Note that this is
                                now superseded by built-in referential
                                integrity.
                   timetravel - Re-implements in user code the time travel
                                feature that was removed in 6.3.
  string - C-like input/output conversion routines for strings
  tablefunc - C functions which return setof scalar and setof composite
  tips - Micro HOWTOs
  tsearch - Searchable text data type supporting indexed access
  tsearch2 - Searchable text data type supporting indexed access
  userlock - User-level long-term locks
  vacuumlo - Vacuum deleted large objects
  xml - Manipulate XML documents in the database
 .
 PostgreSQL is an object-relational SQL database management system.