53.9. pg_group
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## 53.9. pg_group #

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 53.9. pg_group Columns

Column Type Description
`groname` name (references pg_authid.`rolname`) Name of the group
`grosysid` oid (references pg_authid.`oid`) ID of this group
`grolist` oid[] (references pg_authid.`oid`) An array containing the IDs of the roles in this group

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