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Contributor Profiles

These are the fine people that make PostgreSQL what it is today!

Core Team

For more information on the purpose of the core team, please click here.

Contributor Contribution
Peter Eisentraut (peter.eisentraut at
New Hope, PA, USA
Works on the build system, porting, documentation, and the internationalization effort, and codes many other improvements.
Magnus Hagander (magnus at
Redpill Linpro
Stockholm, Sweden
Has done major work on the Win32 port, authentication system and more, and helps maintain the PostgreSQL websites and project infrastructure.
Tom Lane (tgl at
Crunchy Data
Pittsburgh, Pennsylvania, USA
Involved in all aspects of PostgreSQL, including bug evaluation and fixes, performance improvements, and major new features, such as schemas. He is also responsible for the optimizer.
Bruce Momjian (bruce at
Philadelphia, Pennsylvania, USA
Maintains the TODO list, codes, applies patches, and speaks at conferences.
Dave Page (dpage at
Oxfordshire, United Kingdom
Created and maintains pgAdmin, helps manage the websites and project infrastructure, and maintains the PostgreSQL installers.

Major Contributors

Contributor Contribution
Oleg Bartunov (obartunov at
Postgres Professional, Lomonosov Moscow State University
Moscow, Russia
Introduced the locale support, has contributed GiST, GIN and SP-GiST extendability infrastructures, full text search, KNN, NoSQL features (hstore and jsonb) and several extensions including fuzzy search (pg_trgm), support for tree-like structures and arrays. Currenty he is working on implementation of SQL/JSON standard from SQL-2016 and jsonb compression.
Joe Conway (mail at
Crunchy Data
San Diego, California, USA
Set-returning functions, PL/R, dblink, tablefunc (crosstab), improved bytea and array data types, polymorphic arguments, multi-row VALUES, generate_series, pg_settings/related functions, has_*_privilege functions, shared_preload_libraries, and other features. PGDG sysadmin team, board member PG.US
Dave Cramer (davec at
Crunchy Data
Toronto, Ontario, Canada
Maintainer of the JDBC driver and contributes to PL/R.
Jeff Davis (pgsql at
Amazon Web Services
Exclusion constraints, range types, checksums, reviews
Joshua Drake (jd at
Command Prompt, Inc
Postgresql.Org SPI-Liaison Chair PGConf US Director PostgreSQL Foundation Founder United States PostgreSQL Organizer Whatcom Postgres (User Group)
Andrew Dunstan (andrew at
Apex (near Raleigh), North Carolina, USA
Has contributed in a number of areas, including configuration and logging enhancements, dollar quoting, CSV import/export, upgraded plperlng, the Win32 port, rewriting the initdb and pg_ctl scripts in C, a double metaphone function in contrib, and maintains the buildfarm project.
David Fetter (david at
Oakland, California, United States
Works on pgFoundry, DBI-link, and the PostgreSQL Weekly News
Francisco Figueiredo (fxjrlists at
Project founder and lead developer of Npgsql, PostgreSQL's .NET data provider.
Dimitri Fontaine (dimitri at
Paris, France
Extensions, Skytools, pgloader, Event Triggers, prefix
Andres Freund (andres at
San Francisco, USA
Replication, performance, scalability, bug fixing and patch review.
Stephen Frost (sfrost at
Crunchy Data
Chantilly, VA, USA
Security improvements, GRANT improvements, patch review, project infrastructure.
Peter Geoghegan (pg at
San Francisco, California, USA
UPSERT, sorting improvements, pg_stat_statements, group commit
Andrew Gierth (andrew at
Hstore enhancements, ordered aggregates and ordered set functions, grouping sets, ip4r, and provides help and support in the IRC channel
Kevin Grittner (kgrittn at
Madison, Wisconsin, USA
SSI, commitfest manager, patch review, materialized views
Devrim Gündüz (devrim at
London, United Kingdom
Coordinates RPM maintenance at for Red Hat/CentOS/Fedora, at for SLES, helps website maintenance, builds PostgreSQL related packages for Fedora and EPEL, and maintains Fedora and CentOS based Live CD's.
Robert Haas (robertmhaas at
Principal author of parallel query. Scalability work, works all over the code with major patches, patch review. Created the original version of
Álvaro Herrera (alvherre at
Valdivia, Chile
Fixed CLUSTER, worked on savepoints, added shared row locking, added shared dependency tracking, integrated autovacuum into the backend, added background workers, and helps running the project online infrastructure
Tatsuo Ishii (t-ishii at
SRA OSS, Inc. Japan
Handles multi-byte foreign language support and porting issues.
Stefan Kaltenbrunner (stefan at
conova communications GmbH
Helps manage the project online infrastructure and maintain the websites.
Amit Kapila (amit.kapila16 at
Bangalore, India
Parallel Query, durable Hash Indexes, Performance Testing
KaiGai Kohei (kaigai at
CustomScan, FDW enhancement, SEPostgreSQL, ...
Alexander Korotkov (a.korotkov at
Postgres Professional
Moscow, Russia
Pluggable index access methods, advances to GiST and GIN indexes, better algorithms for spatial and fuzzy string search, multicore system optimizations and more
Marko Kreen (markokr at
In addition to contributions to PostgreSQL itself, leads the development of PgBouncer, PL/Proxy and Skytools.
Guillaume Lelarge (guillaume at
PostgreSQL Europe treasurer, PGConf.EU and FOSDEM staff, French translations (docs and apps), Patches on PostgreSQL and various tools
Heikki Linnakangas (heikki.linnakangas at
Helsinki, Finland
2 phase commit support, reworked FSM and VM, replication/transactions, indexing and much more
Fujii Masao (masao.fujii at
NTT Open Source
Streaming replication, synchronous replication
Michael Meskes (meskes at
Düsseldorf, Germany
Maintains ecpg.
Noah Misch (noah at
Security work, patch review.
Michael Paquier (michael at
Code review, bug fix, TAP testing, commit fest management.
Paul Ramsey (pramsey at
Extension support in postgres_fdw. PostGIS geospatial extension.
Simon Riggs (simon at
Buckinghamshire, United Kingdom
Point in Time Recovery, Table Partitioning, Hot Standby, Sync Replication, focuses on enterprise issues, performance and scalability, business intelligence and replication/high availability.
Greg Sabino Mullane (greg at
End Point Corporation
Philadelphia, Pennsylvania, USA
Maintains DBD::Pg, Bucardo,, tail_n_mail, and works on advocacy issues.
Teodor Sigaev (teodor at
Postgres Professional
Moscow, Russia
Works on GIST, GIN and other indexes, full-text search, NoSQL features such as SQL/JSON and other extensions.
Greg Stark (stark at
Dublin, Ireland
Author of concurrent index builds and var-varlena.
Pavel Stehule (pavel.stehule at
Prague, Czech Republic
Has contributed numerous enhancements to PL/pgSQL
Koichi Suzuki (koichi.szk at
NTT Data Intellilink
Multiple patches, leads NTT contributions Leads Postgres-XC community
Robert Treat (rob at
Ellicott City, Maryland, USA
Maintains the phpPgAdmin project, works on a number of advocacy related items
Martijn van Oosterhout (kleptog at
Delft, Netherlands
Worked on a number of features including libpq, psql, shared objects and libraries, shell types and warnings for improper config options.
David Wheeler (david at
PostgreSQL Experts
Portland, OR, USA
created PGXN, citext, pgTAP, advocacy


Laurenz Albe (laurenz.albe at Aleksander Alekseev (a.alekseev at
Gevik Babakhani (pgdev at Ashutosh Bapat (ashutosh.bapat at
Christoph Berg (cb at Christopher Browne (cbbrowne at
D'Arcy Cain (darcy at Marc Cave-Ayland (mark.cave-ayland at
Damien Clochard (damien at Fabien Coelho (coelho at
Pavan Deolasee (pavan.deolasee at Korry Douglas (korryd at
Etsuro Fujita (fujita.etsuro at Bernd Helmle (mailings at
Kyotaro Horiguchi (horiguchi.kyotaro at Hiroshi Inoue
Jeff Janes (jeff.janes at Petr Jelinek (petr at
Brendan Jurd (direvus at Andreas Karlsson (andreas at
Mark Kirkwood Alexey Klyukin (alexk at
Haribabu Kommi (haribabuk at Hannu Krosing (hannu at
Amit Langote (amitlangote09 at Francalanci Leonardo (m_lists at
Abhijit Menon-Sen (ams at Thomas Munro (thomas.munro at
Jim Nasby (Jim.Nasby at Regina Obe (rl at
Euler Taveira de Oliveira (euler at Dean Rasheed (dean.a.rasheed at
Marti Raudsepp (marti at Craig Ringer (craig at
David Rowley (david.rowley at Hiroshi Saito (hiroshi at
Sandro Santilli (strk at Masahiko Sawada (sawada.mshk at
Jignesh Shah Vladimir Sitnikov (sitnikov.vladimir at
Marko Tiikkaja Takayuki Tsunakawa (tsunakawa.takay at
Yamada Tsutomu (ns1090156 at Jan Urbański (wulczer at
Tomas Vondra (tv at Mark Wong (mark at

Hackers Emeritus

The following hackers were previously part of the core team. Although they no longer work on the project, they are included here in recognition of their valuable contributions over the years.

Contributor Contribution
Josh Berkus (josh at
Red Hat Inc.
Portland, OR, USA
Provides general direction for PostgreSQL advocacy, works on performance testing, tuning and documentation, and works with user groups.
Marc G. Fournier (scrappy at
Hub.Org Networking Services
Ottawa, Ontario, Canada
Coordinated the entire effort, helped administer the websites, mailing lists, ftp site, and source code repository.
Thomas G. Lockhart (lockhart at
Jet Propulsion Labratory
Pasadena, California, USA
Worked on documentation, data types (particularly date/time and geometric), and SQL standards compliance.
Vadim B. Mikheev (vadim4o at
San Francisco, California, USA
Undertook large projects, like vacuum, subselects, triggers, Write Ahead Log (WAL) and multi-version concurrency control (MVCC).
Jan Wieck (jan at
Willow Grove, Pennsylvania, USA
Designed and implemented Slony, overhauled the query rewrite rule system, wrote the procedural languages PL/pgSQL and PL/Tcl, added foreign keys, bgwriter, the statistics collector, the TOAST system and other features.

Past Contributors

Julian Assange David Bennett
Dennis Björklund Alexey Borzov
Zoltán Böszörményi Emily Boyd
Tim Bunce Emmanuel Checchet
Andrew Chernow Sean Chittenden
Justin Clift Neil Conway
Massimo Dal Zotto Selena Deckelmann
Dr_George_D Detlefsen Chris Dunlop
J. Douglas Dunlop Oliver Elphick
Michael Fuhr Brian E. Gallew
Michael Glaesemann Cees de Groot
Thomas Hallgren John Hansen
Hitoshi Harada Jonah Harris
Alex Hunsaker Kris Jurka
Christopher Kings-Lynne Manfred Koizar
Sergey E. Koposov Zdenek Kotala
Anoop Kumar Randy Kunkee
Kurt J. Lidl Barry Lind
Robert Lor Dan McGuirk
Roberto Mello Ernst Molitor
Fernando Nasser Claudio Natoli
Matthew T. O'Connor Lamar Owen
Andreas Pflug Ross J. Reedstrom
Thomas van Reimersdahl Larry Rosenman
Sergej Sergeev Gavin Sherry
Michael Siebenborn Guillaume Smet
Greg Smith Erich Stamberger
Adam Sussman Sven Suursoho
Stephan Szabo ITAGAKI Takahiro
Rod Taylor Reini Urban
Paul "Shag" Walmsley Philip Warner
Rick Weldon Joachim Wieland
Jason Wright Karel Zak
Andreas Zeugswetter Qingqing Zhou

All contributors are listed in alphabetical order. Please report omissions or corrections to the webmaster.

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