Guides - PostgreSQL Extensions
Published
, by Linode
Fully managed cloud database clusters built on top of Linode’s trusted and reliable platform.
Create a Linode account
to try this guide with a $100 credit.
This credit will be applied to any valid services used during your first 60 days.
The functionality of PostgreSQL can be enhanced through the use of extensions. Linode’s PostgreSQL Managed Database service supports many of these extensions and they are available for any user to install and utilize.
View Available Extensions
To see a full list of all the extensions available for your version of PostgreSQL, connect to your database and run the following query. You can also review the List of Available Extensions below.
SELECT * FROM pg_available_extensions;
Install an Extension
To install one of the available extensions on your database, use the CREATE EXTENSION command, replacing [extension_name] with the name of the extension you wish to install.
CREATE EXTENSION IF NOT EXISTS [extension_name];
Remove an Extension
To remove an extension, use the DROP EXTENSION command, replacing [extension_name] with the name of the extension you wish to install.
DROP EXTENSION [extension_name];
List of Available Extensions
The table below lists all of the PostgreSQL extensions that are supported by our Managed Database service. Note that not all extensions are supported on all PostreSQL versions. Furthermore, the actual installed version of the extension itself may vary between PostgreSQL versions.
NoteWhile this list is kept updated, the most recent and accurate list can be generated through the instructions in the View Available Extensions section.
| Extension | Compatible PostgreSQL Version(s) | Description |
|---|---|---|
address_standardizer | 11, 12, 13 | Used to parse an address into constituent elements. Generally used to support geocoding address normalization step. |
address_standardizer_data_us | 11, 12, 13 | Example dataset for address_standardizer. |
adminpack | 10, 11, 12, 13 | Administrative functions for PostgreSQL |
amcheck | 10, 11, 12, 13 | Functions for verifying relation integrity |
amcheck_next | 10, 11 | Functions for verifying relation integrity |
autoinc | 10, 11, 12, 13 | Functions for auto incrementing fields |
bloom | 10, 11, 12, 13 | Bloom access method - signature file based index |
btree_gin | 10, 11, 12, 13 | Support for indexing common data types in GIN |
btree_gist | 10, 11, 12, 13 | Support for indexing common data types in GiST |
chkpass | 10 | Data type for auto-encrypted passwords |
citext | 10, 11, 12, 13 | Data type for case-insensitive character strings |
cube | 10, 11, 12, 13 | Data type for multidimensional cubes |
dblink | 10, 11, 12, 13 | Connect to other PostgreSQL databases from within a database |
dict_int | 10, 11, 12, 13 | Text search dictionary template for integers |
dict_xsyn | 10, 11, 12, 13 | Text search dictionary template for extended synonym processing |
earthdistance | 10, 11, 12, 13 | Calculate great-circle distances on the surface of the Earth |
file_fdw | 10, 11, 12, 13 | Foreign-data wrapper for flat file access |
fuzzystrmatch | 10, 11, 12, 13 | Determine similarities and distance between strings |
hll | 10, 11, 12, 13 | Type for storing HyperLogLog data |
hstore | 10, 11, 12, 13 | Data type for storing sets of (key, value) pairs |
hstore_plperl | 10, 11, 12, 13 | Transform between hstore and plperl |
hstore_plperlu | 10, 11, 12, 13 | Transform between hstore and plperlu |
hypopg | 11, 12, 13 | Hypothetical indexes for PostgreSQL |
insert_username | 10, 11, 12, 13 | Functions for tracking who changed a table |
intagg | 10, 11, 12, 13 | Integer aggregator and enumerator (obsolete) |
intarray | 10, 11, 12, 13 | Functions, operators, and index support for 1-D arrays of integers |
ip4r | 10, 11, 12, 13 | |
isn | 10, 11, 12, 13 | Data types for international product numbering standards |
jsonb_plperl | 11, 12, 13 | Transform between jsonb and plperl |
jsonb_plperlu | 11, 12, 13 | Transform between jsonb and plperlu |
lo | 10, 11, 12, 13 | Large Object maintenance |
ltree | 10, 11, 12, 13 | Data type for hierarchical tree-like structures |
moddatetime | 10, 11, 12, 13 | Functions for tracking last modification time |
orafce | 10, 11, 12, 13 | Functions and operators that emulate a subset of functions and packages from the Oracle RDBMS |
pageinspect | 10, 11, 12, 13 | Inspect the contents of database pages at a low level |
pg_buffercache | 10, 11, 12, 13 | Examine the shared buffer cache |
pg_cron | 11, 12, 13 | Job scheduler for PostgreSQL |
pg_freespacemap | 10, 11, 12, 13 | Examine the free space map (FSM) |
pg_prewarm | 10, 11, 12, 13 | Prewarm relation data |
pg_repack | 10, 11, 12, 13 | Reorganize tables in PostgreSQL databases with minimal locks |
pg_stat_statements | 10, 11, 12, 13 | Track execution statistics of all SQL statements executed |
pg_trgm | 10, 11, 12, 13 | Text similarity measurement and index searching based on trigrams |
pg_visibility | 10, 11, 12, 13 | Examine the visibility map (VM) and page-level visibility info |
pgaudit | 10, 11, 12, 13 | Provides auditing functionality |
pgcrypto | 10, 11, 12, 13 | Cryptographic functions |
pglogical | 10, 11, 12, 13 | PostgreSQL Logical Replication |
pglogical_origin | 10, 11, 12, 13 | Dummy extension for compatibility when upgrading from Postgres 9.4 |
pgrowlocks | 10, 11, 12, 13 | Show row-level locking information |
pgstattuple | 10, 11, 12, 13 | Show tuple-level statistics |
plpgsql | 10, 11, 12, 13 | PL/pgSQL procedural language |
postgis | 10, 11, 12, 13 | PostGIS geometry and geography spatial types and functions |
postgis_sfcgal | 10, 11, 12, 13 | PostGIS SFCGAL functions |
postgis_tiger_geocoder | 10, 11, 12, 13 | PostGIS tiger geocoder and reverse geocoder |
postgis_topology | 10, 11, 12, 13 | PostGIS topology spatial types and functions |
postgres_fdw | 10, 11, 12, 13 | Foreign-data wrapper for remote PostgreSQL servers |
prefix | 10, 11, 12, 13 | Prefix Range module for PostgreSQL |
refint | 10, 11, 12, 13 | Functions for implementing referential integrity (obsolete) |
seg | 10, 11, 12, 13 | Data type for representing line segments or floating-point intervals |
sslinfo | 10, 11, 12, 13 | Information about SSL certificates |
tablefunc | 10, 11, 12, 13 | Functions that manipulate whole tables, including crosstab |
tcn | 10, 11, 12, 13 | Triggered change notifications |
timescaledb | 11, 12, 13 | Enables scalable inserts and complex queries for time-series data |
timetravel | 10, 11 | Functions for implementing time travel |
tsm_system_rows | 10, 11, 12, 13 | TABLESAMPLE method which accepts number of rows as a limit |
tsm_system_time | 10, 11, 12, 13 | TABLESAMPLE method which accepts time in milliseconds as a limit |
unaccent | 10, 11, 12, 13 | Text search dictionary that removes accents |
uuid-ossp | 10, 11, 12, 13 | Generate universally unique identifiers (UUIDs) |
xml2 | 10, 11, 12, 13 | XPath querying and XSLT |
If you would like to use an extension that’s not currently listed here, contact our Support team and they’ll be able to send your feedback to our developers.
This page was originally published on