Pre-release documentation. PostgreSQL 19rc1 is a testing release. The final release may differ.
53.10. 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 53.10. pg_group Columns
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