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The pg_auth_members system catalog table shows the membership relations between roles. Any non-circular set of relationships is allowed. Because roles are system-wide, pg_auth_members is shared across all databases of a HAWQ system.
Table 1. pg_catalog.pg_auth_members
| column | type | references | description |
|---|---|---|---|
roleid | oid | pg_authid.oid | ID of the parent-level (group) role |
member | oid | pg_authid.oid | ID of a member role |
grantor | oid | pg_authid.oid | ID of the role that granted this membership |
admin_option | boolean | True if role member may grant membership to others |
