Historical version. PostgreSQL 11 has reached end of support. 2023-11-09. See the current manual.
52.9. pg_auth_members
The catalog pg_auth_members shows the membership
relations between roles. Any non-circular set of relationships is allowed.
Because user identities are cluster-wide,
pg_auth_members
is shared across all databases of a cluster: there is only one
copy of pg_auth_members per cluster, not
one per database.
Table 52.9. pg_auth_members Columns
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