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Mastering PostgreSQL 12 - Third Edition
book

Mastering PostgreSQL 12 - Third Edition

by Hans-Jürgen Schönig
November 2019
Beginner to intermediate content levelBeginner to intermediate
470 pages
11h 59m
English
Packt Publishing
Content preview from Mastering PostgreSQL 12 - Third Edition

Checking for available extensions

PostgreSQL offers various views so that we can figure out which extensions are on the system and which ones are actually deployed. One of those views is pg_available_extensions:

test=# \d pg_available_extensions          View "pg_catalog.pg_available_extensions"    Column        | Type  | Collation | Nullable | Default ------------------+-------+-----------+----------+--------- name              | name |           |          |  default_version   | text |           |          |  installed_version | text | C         |          |  comment           | text |           |          | 

This contains a list of all of the extensions that are available, including their names, their default version, and the version that's currently installed. To make this easier for the end user, there is also a description available, telling us more ...

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Publisher Resources

ISBN: 9781838988821Supplemental Content