Postgres extensions

Explore supported Postgres extensions by category. Also see:

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AI / Machine Learning

• pg_tiktoken

  Tokenize data in Postgres using the OpenAI tiktoken library

• pgrag

  Create end-to-end Retrieval-Augmented Generation (RAG) pipelines

• pgvector

  Store vector embeddings and perform vector similarity search in Postgres

Analytics

• pg_mooncake

  Adds columnstore tables and DuckDB execution for fast analytics in Postgres.

• hll

  Implements a HyperLogLog data structure as a native data type for efficient and tunable distinct value counting

• timescaledb

  Enables Postgres as a time-series database for efficient storage and retrieval of time-series data

Auditing / Logging

• insert_username

  Implements a trigger that stores the current user's name into a text field, useful for tracking who modified a particular row within a table

• moddatetime

  Implements a trigger that automatically updates a timestamp column to the current timestamp whenever a row is modified

• pgrowlocks

  Provides a function that shows row locking information for a specified table, useful in concurrency and deadlock debugging

• tcn

  Provides a trigger function to notify listeners of changes to a table, allowing applications to respond to changes in the database

Data / Transformations

• address_standardizer

  A single-line address parser that takes an input address and normalizes it based on a set of rules

• address_standardizer_data_us

  Provides data for standardizing US addresses, for use with the address_standardizer extension

• citext

  Provides a case-insensitive character string type that internally calls lower when comparing values in Postgres

• cube

  Implements the cube data type for representing multidimensional cubes in Postgres

• earthdistance

  Provides cube-based and point-based approaches to calculating great circle distances on the surface of the Earth

• hstore

  Implements an hstore data type for storing and manipulating sets of key-value pairs within a single Postgres value

• intagg

  Provides an integer aggregator and enumerator for Postgres

• intarray

  Offers functions and operators for manipulating and searching arrays of integers within Postgres

• isn

  Implements data types for international product numbering standards: EAN13, UPC, ISBN (books), ISMN (music), and ISSN (serials)

• ltree

  Provides data types for representing labels of data stored in a hierarchical tree-like structure and facilities for searching through label trees

• pg_graphql

  Adds GraphQL support to Postgres, allowing you to query your database via GraphQL

• pg_hashids

  Enables the generation of short, unique hash ids from integers, useful for obfuscating internal ids

• pg_jsonschema

  Provides support for JSON schema validation on json and jsonb data types

• pg_uuidv7

  Enables creating valid UUID Version 7 values in Postgres, enabling globally unique identifiers with temporal ordering

• pgx_ulid

  A full-featured extension for generating and working with ULID (Universally Unique Lexicographically Sortable Identifiers)

• seg

  Implements the seg data type for storage and manipulation of line segments or floating-point ranges, useful for geometric and scientific applications

• semver

  A Postgres data type for the Semantic Version format with support for btree and hash indexing

• tablefunc

  Contains functions that return tables (multiple rows), including crosstab, which can pivot row data into columns dynamically

• unaccent

  A text search dictionary that removes accents from characters, simplifying text search in Postgres

• unit

  Implements a data type for SI units, plus byte, for storage, manipulation, and calculation of scientific units

• uuid-ossp

  Provides functions to generate universally unique identifiers (UUIDs) in Postgres, supporting various UUID standards

• wal2json

  A Postgres logical decoding plugin that converts Write-Ahead Log (WAL) changes into JSON objects

• xml2

  Enables XPath queries and XSLT functionality directly within Postgres, enabling XML data processing

Debugging

• moddatetime

  Automatically updates a timestamp column to the current timestamp whenever a row is modified in Postgres

• pgrowlocks

  Provides a function that shows row locking information for a specified table, which can aid in concurrency and deadlock debugging

• pgTap

  A unit testing framework for Postgres, enabling sophisticated testing of database queries and functions

• plpgsql_check

  Provides a linter and debugger for PL/pgSQL code, helping identify errors and optimize PL/pgSQL functions

Geospatial

• cube

  Implements a data type for representing multidimensional cubes in Postgres

• earthdistance

  Provides cube-based and point-based approaches to calculating great circle distances on the surface of the Earth

• h3

  Integrates Uber's H3 geospatial indexing system that combines the benefits of a hexagonal grid with S2's hierarchical subdivisions

• h3_postgis

  A PostGIS extension for H3, enabling advanced spatial analysis and indexing

• pgrouting

  Extends PostGIS/Postgres databases, providing geospatial routing and other network analysis functionality

• postgis

  Extends Postgres to allow GIS (Geographic Information Systems) objects to be stored in the database, enabling spatial queries directly in SQL

• postgis_raster

  Adds support for raster data to PostGIS, enabling advanced geospatial analysis on raster images

• postgis_sfcgal

  Provides support for advanced 3D geometries in PostGIS, based on the SFCGAL library

• postgis_tiger_geocoder

  Enables geocoding and reverse geocoding capabilities in PostGIS using TIGER/Line data

• postgis_topology

  Extends PostGIS with support for topological data types and functions, facilitating the analysis of spatial relationships

Index / Table optimization

• bloom

  Provides an index access method for Postgres based on Bloom filters

• btree_gin

  Provides GIN operator classes that implement B-tree equivalent behavior

• btree_gist

  Provides GiST index operator classes that implement B-tree equivalent behavior

• ip4r

  Provides a range index type and functions for efficiently storing and querying IPv4 and IPv6 ranges and addresses in Postgres

• pg_ivm

  Provides an Incremental View Maintenance (IVM) feature for Postgres

• pg_partman

  A partition manager extension that enables creating and managing time-based and number-based table partition sets in Postgres

• pg_prewarm

  Allows manual preloading of relation data into the Postgres buffer cache, reducing access times for frequently queried tables

• pg_repack

  Lets you remove bloat from tables and indexes, and optionally restore the physical order of clustered indexes

• pg_roaringbitmap

  Implements Roaring Bitmaps in Postgres for efficient storage and manipulation of bit sets

• rum

  Provides an access method to work with a RUM index, designed to speed up full-text searches

Metrics

• neon

  Provides functions and views designed to gather Neon-specific metrics

• pg_stat_statements

  Tracks planning and execution statistics for all SQL statements executed, aiding in performance analysis and tuning

• pgstattuple

  Offers functions to show tuple-level statistics for tables, helping identify bloat and efficiency opportunities

• tsm_system_rows

  Provides a table sampling method that selects a fixed number of table rows randomly

• tsm_system_time

  Offers a table sampling method based on system time, enabling consistent sample data retrieval over time

Orchestration

• tcn

  Provides a trigger function to notify listeners of changes to a table, allowing applications to respond to changes in the database

• pg_partman

  A partition manager extension that enables creating and managing time-based and number-based table partition sets in Postgres

Procedural languages

• plcoffee

  Enables writing functions in CoffeeScript, a Javascript dialect with a syntax similar to Ruby

• plls

  Enables writing functions in LiveScript, a Javascript dialect that serves as a more powerful successor to CoffeeScript

• plv8

  A Postgres procedural language powered by V8 Javascript Engine for writing functions in Javascript that are callable from SQL

• plpgsql

  The default procedural language for Postgres, enabling the creation of complex functions and triggers

Query optimization

• hypopg

  Provides the ability to create hypothetical (virtual) indexes in Postgres for performance testing

• pg_hint_plan

  Allows developers to influence query plans with hints in SQL comments, improving performance and control over query execution

Scientific computing

• cube

  Implements the cube data type for representing multidimensional cubes in Postgres

• rdkit

  Integrates the RDKit cheminformatics toolkit with Postgres, enabling chemical informatics operations directly in the database

• seg

  Implements the seg data type for storage and manipulation of line segments or floating-point intervals, useful for representing laboratory measurements

• unit

  Implements a data type for SI units, plus byte, for storage, manipulation, and calculation of scientific units

Search

• citext

  Provides a case-insensitive character string type that internally calls lower when comparing values in Postgres

• dict_int

  Provides a text search dictionary template for indexing integer data in Postgres

• fuzzystrmatch

  Provides several functions to determine similarities and distance between strings in Postgres

• pg_search

  An Elasticsearch alternative for full-text search and analytics on Postgres

• pg_trgm

  Provides functions and operators for determining the similarity of alphanumeric text based on trigram matching, and index operator classes for fast string similarity search

• prefix

  A prefix range module that supports efficient queries on text columns with prefix-based searching and matching capabilities

• unaccent

  A text search dictionary that removes accents from characters, simplifying text search in Postgres

Security

• pg_session_jwt

  Enables RLS policies to verify user identity directly within SQL queries

• pgcrypto

  Offers cryptographic functions, allowing for encryption and hashing of data within Postgres

• pgjwt

  Implements JSON Web Tokens (JWT) in Postgres, allowing for secure token creation and verification

Tooling / Admin

• autoinc

  Provides an autoinc() function that stores the next value of a sequence into an integer field

• hypopg

  Provides the ability to create hypothetical (virtual) indexes in Postgres for performance testing

• insert_username

  Automatically inserts the username of the person executing an insert operation into a specified table in Postgres

• lo

  Provides support for managing large objects (LOBs) in Postgres, including a data type lo and a trigger lo_manage

• neon_utils

  Provides a function for monitoring how Neon's Autoscaling feature allocates vCPU in response to workload

• pg_cron

  Lets you schedule and manage periodic jobs directly in your Postgres database

• pgtap

  A unit testing framework for Postgres, enabling sophisticated testing of database queries and functions

• refint

  Provides functions for maintaining foreign key constraints

Remote data access

• dblink

  Provides functions for accessing and manipulating data in remote databases from within Postgres

• postgres_fdw

  Access data in remote Postgres databases as local tables