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The pg_available_extensions view lists the extensions that are available for installation. The pg_extension system catalog table shows the extensions currently installed.
The view is read only.
| column | type | description |
|---|---|---|
name | name | Extension name. |
default_version | text | Name of default version, or NULL if none is specified. |
installed_version | text | Currently installed version of the extension, or NULL if not installed. |
comment | text | Comment string from the extension control file. |
Parent topic: System Catalogs Definitions
