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
Dresden, Germany
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.
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
Castro Valley, California, United States
Advocacy, features including FILTER, PostgreSQL Weekly News, patch reviews and updates
Francisco Figueiredo (fxjrlists at
Project founder and lead developer of Npgsql, PostgreSQL's .NET data provider.
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.
Etsuro Fujita (fujita.etsuro at
Numerous improvements to postgres_fdw
Peter Geoghegan (pg at
Crunchy Data
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.
Petr Jelinek (petr at
Czech Republic
Logical Replication, DO statement, GRANT ON ALL, ALTER DEFAULT PRIVILEGES, TABLESAMPLE, etc. Works on BDR, pglogical and PgBouncer.
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
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
Amit Langote (amitlangote09 at
Declarative table partitioning, pg_stat_progress_vacuum, improvements in partition elimination
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.
Thomas Munro (thomas.munro at
Wellington, New Zealand
Added SKIP LOCKED, remote_apply, replay_lag, Parallel Hash Join, DSA (co-author), trigger transition tables (co-author), various LDAP improvements. Code review, bug fixes.
Michael Paquier (michael at
Code review, bug fix, TAP testing, commit fest management.
Paul Ramsey (pramsey at
Crunchy Data
Victoria, BC, Canada
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.
Pavel Stehule (pavel.stehule at
Prague, Czech Republic
Has contributed numerous enhancements to PL/pgSQL
Tomas Vondra (tv at
CREATE STATISTICS, improvements to pageinspect, ANALYZE, distinct value estimates, hash join optimizations, special-purpose memory allocators


Laurenz Albe (laurenz.albe at Aleksander Alekseev (afiskon at
Gevik Babakhani (pgdev at Ashutosh Bapat (ashutosh.bapat.oss 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
Mithun Cy ( at Jeff Davis (pgsql at
Pavan Deolasee (pavan.deolasee at Korry Douglas (korryd at
Joshua Drake (jd at Dimitri Fontaine (dim at
Nikita Glukhov (n.gluhov at Daniel Gustafsson (daniel at
Bernd Helmle (mailings at Kyotaro Horiguchi (horiguchi.kyotaro at
Corey Huinker (corey.huinker at Hiroshi Inoue
Jeff Janes (jeff.janes at David Johnston (david.g.johnston at
Brendan Jurd (direvus at Andreas Karlsson (andreas at
Jonathan Katz (jonathan.katz at Mark Kirkwood
Alexey Klyukin (alexk at KaiGai Kohei (kaigai at
Haribabu Kommi (haribabuk at Marko Kreen (markokr at
Hannu Krosing (hannu at Dilip Kumar (dilipbalaut at
Jeevan Ladhe (jeevan.ladhe at Rushabh Lathia (rushabh.lathia at
Francalanci Leonardo (m_lists at Abhijit Menon-Sen (ams at
Jim Nasby (Jim.Nasby at Regina Obe (rl at
Euler Taveira de Oliveira (euler at Mike Palmiotto (mike.palmiotto 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
Ashutosh Sharma (ashu.coek88 at Vladimir Sitnikov (sitnikov.vladimir at
Greg Stark (stark at David Steele (david at
Amul Sul (sulamul at Koichi Suzuki (koichi.szk at
Marko Tiikkaja Robert Treat (rob at
Takayuki Tsunakawa (tsunakawa.takay at Yamada Tsutomu (ns1090156 at
Jan Urbański (wulczer at Martijn van Oosterhout (kleptog at
David Wheeler (david 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
2ndQuadrant, Inc.
Victoria, British Columbia, 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
Amazon Web Services
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.