May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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Another system view, pg_available_extension_versions, shows all the versions that are available for each extension. It can be valuable when there are multiple versions of the same extension available at the same time—for example, when making preparations for an extension upgrade.
When a more recent version of an already installed extension becomes available to the database server, for instance, because of a distribution upgrade that installs updated package files, the superuser can perform an upgrade by issuing the following command:
ALTER EXTENSION mytext UPDATE TO '1.1';
This assumes that the author of the extension taught it how to perform the upgrade.
Extensions interact nicely with logical backup and restore nicely, a topic ...
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