---------------------------

This subtree contains porting tools, analysis utilities, and plug-in

features that are not part of the core PostgreSQL system, mainly because

they address a limited audience or are too experimental to be part of

the main source tree. This does not preclude their usefulness.

features that are not part of the core PostgreSQL system, mainly

because they address a limited audience or are too experimental to be

part of the main source tree. This does not preclude their

usefulness.

User documentation for each module appears in the main SGML documentation.

User documentation for each module appears in the main SGML

documentation.

Most items can be built with `gmake all' and installed with

`gmake install' in the usual fashion, after you have run the `configure'

script in the top-level directory. Some directories supply new

user-defined functions, operators, or types. In these cases, after you have

installed the files you need to register the new entities in the database

system by running the commands in the supplied .sql file. For example,

When building from the source distribution, these modules are not

built automatically, unless you build the "world" target. You can

also build and install them all by running "gmake all" and "gmake

install" in this directory; or to build and install just one selected

module, do the same in that module's subdirectory.

$ psql -d dbname -f module.sql

Some directories supply new user-defined functions, operators, or

types. To make use of one of these modules, after you have installed

the code you need to register the new SQL objects in the database

system by executing a CREATE EXTENSION command. In a fresh database,

you can simply do

CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this

procedure.

Index:

------

adminpack -

File and log manipulation routines, used by pgAdmin

by Dave Page <dpage@vale-housing.co.uk>

auth_delay

Add a short delay after a failed authentication attempt, to make

brute-force attacks on database passwords a bit harder.

by KaiGai Kohei <kaigai@ak.jp.nec.com>

auto_explain -

Log EXPLAIN output for long-running queries

by Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>

btree_gin -

Support for emulating BTREE indexing in GIN

by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru>

btree_gist -

Support for emulating BTREE indexing in GiST

by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru>

chkpass -

An auto-encrypted password datatype

by D'Arcy J.M. Cain <darcy@druid.net>

citext -

A case-insensitive character string datatype

by David E. Wheeler <david@kineticode.com>

cube -

Multidimensional-cube datatype (GiST indexing example)

by Gene Selkov, Jr. <selkovjr@mcs.anl.gov>

dblink -

Allows remote query execution

by Joe Conway <mail@joeconway.com>

dict_int -

Text search dictionary template for integers

by Sergey Karpov <karpov@sao.ru>

dict_xsyn -

Text search dictionary template for extended synonym processing

by Sergey Karpov <karpov@sao.ru>

earthdistance -

Functions for computing distances between two points on Earth

by Bruno Wolff III <bruno@wolff.to> and Hal Snyder <hal@vailsys.com>

file_fdw

Foreign-data wrapper for server-side CSV/TEXT files

by Shigeru Hanada <hanada@metrosystems.co.jp>

fuzzystrmatch -

Levenshtein, metaphone, and soundex fuzzy string matching

by Joe Conway <mail@joeconway.com> and Joel Burton <jburton@scw.org>

hstore -

Module for storing (key, value) pairs

by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru>

intagg -

Integer aggregator

by mlw <markw@mohawksoft.com>

intarray -

Index support for arrays of int4, using GiST

by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su>

isn -

PostgreSQL type extensions for ISBN, ISSN, ISMN, EAN13 product numbers

by Germán Méndez Bravo (Kronuz) <kronuz@hotmail.com>

lo -

Large Object maintenance

by Peter Mount <peter@retep.org.uk>

ltree -

Tree-like data structures

by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su>

oid2name -

Maps numeric files to table names

by B Palmer <bpalmer@crimelabs.net>

pageinspect -

Allows inspection of database pages

Heikki Linnakangas <heikki@enterprisedb.com>

passwordcheck -

Simple password strength checker

Laurenz Albe <laurenz.albe@wien.gv.at>

pg_buffercache -

Real time queries on the shared buffer cache

by Mark Kirkwood <markir@paradise.net.nz>

pg_freespacemap -

Displays the contents of the free space map (FSM)

by Mark Kirkwood <markir@paradise.net.nz>

pg_standby -

Sample archive_command for warm standby operation

by Simon Riggs <simon@2ndquadrant.com>

pg_stat_statements -

Track statement execution times across a whole database cluster

by Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>

pg_test_fsync -

Test different wal_sync_method settings

by Bruce Momjian <bruce@momjian.us>

pg_trgm -

Functions for determining the similarity of text based on trigram

matching.

by Oleg Bartunov <oleg@sai.msu.su> and Teodor Sigaev <teodor@sigaev.ru>

pg_upgrade -

Support for in-place upgrade between major releases of PostgreSQL

Bruce Momjian <bruce@momjian.us> and others

pgbench -

TPC-B like benchmarking tool

by Tatsuo Ishii <ishii@sraoss.co.jp>

pgcrypto -

Cryptographic functions

by Marko Kreen <marko@l-t.ee>

pgrowlocks -

A function to return row locking information

by Tatsuo Ishii <ishii@sraoss.co.jp>

pgstattuple -

Functions to return statistics about "dead" tuples and free

space within a table

by Tatsuo Ishii <ishii@sraoss.co.jp>

seg -

Confidence-interval datatype (GiST indexing example)

by Gene Selkov, Jr. <selkovjr@mcs.anl.gov>

sepgsql -

External security provider using SELinux

by KaiGai Kohei <kaigai@ak.jp.nec.com>

spi -

Various trigger functions, examples for using SPI.

sslinfo -

Functions to get information about SSL certificates

by Victor Wagner <vitus@cryptocom.ru>

start-scripts -

Scripts for starting the server at boot time on various platforms.

tablefunc -

Examples of functions returning tables

by Joe Conway <mail@joeconway.com>

test_parser -

Sample text search parser

by Sergey Karpov <karpov@sao.ru>

tsearch2 -

Compatibility package for the pre-8.3 implementation of text search.

Pavel Stehule <pavel.stehule@gmail.com>, based on code originally by

Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su>.

unaccent -

Unaccent dictionary for text search

Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov <oleg@sai.msu.su>.

uuid-ossp -

UUID generation functions

by Peter Eisentraut <peter_e@gmx.net>

vacuumlo -

Remove orphaned large objects

by Peter T Mount <peter@retep.org.uk>

xml2 -

Storing XML in PostgreSQL

by John Gray <jgray@azuli.co.uk>