Subtree renames and linked attributes

[Luke Howard]

>I suppose we could make all DNs in attributes be stored as GUIDs and
>resolved at search time?

Hmm, didn't I mention this years ago? :-)

For performance/historical reasons many directories that support
referential integrity use integral 32-bit entry IDs rather than
GUIDs for this.

In the case the entry is not in a local DIB, the entry pointed
to by the entry ID might be a proxy object ("phantom") that
caches the DN, GUID, SID of the real entry. A separate process
can then be responsible for maintaining cache consistency.

-- Luke

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