52.71. pg\_group

|        52.71. `pg_group`         |                   |                           |                  |                                    |
|:--------------------------------:|-------------------|---------------------------|------------------|------------------------------------|
|[Prev](view-pg-file-settings.html)|[Up](catalogs.html)|Chapter 52. System Catalogs|[Home](index.html)| [Next](view-pg-hba-file-rules.html)|

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## 52.71. `pg_group`

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 The view `pg_group` exists for backwards compatibility: it emulates a catalog that existed in PostgreSQL before version 8.1. It shows the names and members of all roles that are marked as not `rolcanlogin`, which is an approximation to the set of roles that are being used as groups.

**Table 52.72. `pg_group` Columns**

|                                                     Column Type<br/><br/> Description                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------|
|                 `groname` `name` (references [`pg_authid`](catalog-pg-authid.html).`rolname`)<br/><br/> Name of the group                 |
|                   `grosysid` `oid` (references [`pg_authid`](catalog-pg-authid.html).`oid`)<br/><br/> ID of this group                    |
|`grolist` `oid[]` (references [`pg_authid`](catalog-pg-authid.html).`oid`)<br/><br/> An array containing the IDs of the roles in this group|

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|:---------------------------------|:-----------------:|-----------------------------------:|
|    52.70. `pg_file_settings`     |[Home](index.html) |     52.72. `pg_hba_file_rules`     |

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