pg_default_acl stores initial privileges to be assigned to newly created objects.
| || ||Row identifier (hidden attribute; must be explicitly selected)|
| || || ||The OID of the role associated with this entry|
| || || ||The OID of the namespace associated with this entry, or 0 if none|
| || ||Type of object this entry is for: |
| || ||Access privileges that this type of object should have on creation|
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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