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49.17. pg_default_acl

The catalog pg_default_acl stores initial privileges to be assigned to newly created objects.

Table 49-17. pg_default_acl Columns

Name Type References Description
oid oid Row identifier (hidden attribute; must be explicitly selected)
defaclrole oid pg_authid.oid The OID of the role associated with this entry
defaclnamespace oid pg_namespace.oid The OID of the namespace associated with this entry, or 0 if none
defaclobjtype char Type of object this entry is for: r = relation (table, view), S = sequence, f = function, T = type
defaclacl aclitem[] Access privileges that this type of object should have on creation

A pg_default_acl entry shows the initial privileges to be assigned to an object belonging to the indicated user. There are currently two types of entry: "global" entries with defaclnamespace = 0, and "per-schema" entries that reference a particular schema. If a global entry is present then it overrides the normal hard-wired default privileges for the object type. A per-schema entry, if present, represents privileges to be added to the global or hard-wired default privileges.

Note that when an ACL entry in another catalog is null, it is taken to represent the hard-wired default privileges for its object, not whatever might be in pg_default_acl at the moment. pg_default_acl is only consulted during object creation.

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https://www.postgresql.org/docs/9.5/static/catalog-pg-default-acl.html