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Note: The following description applies both to Postgres-XC and PostgreSQL if not described explicitly. You can read PostgreSQL as Postgres-XC except for version number, which is specific to each product.
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 47-59. 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.