49.58. pg_available_extension_versions
 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
| Name | Type | Description | 
|---|---|---|
name | name | Extension name | 
version | text | Version name | 
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.