The pg_available_extension_versions view lists the specific extension versions that are available for installation. See also the pg_extension catalog, which shows the extensions currently installed.
Table 49-59. pg_available_extension_versions Columns
|installed||bool||True if this version of this extension is currently installed|
|superuser||bool||True if only superusers are allowed to install this extension|
|relocatable||bool||True if extension can be relocated to another schema|
|schema||name||Name of the schema that the extension must be installed into, or NULL if partially or fully relocatable|
|requires||name||Names of prerequisite extensions, or NULL if none|
|comment||text||Comment string from the extension's control file|
The pg_available_extension_versions view is read only.
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