Enum StarredIdentities 

pub enum StarredIdentities {
    All(Vec<(Option<String>, String)>),
    Truncated,
}

The (url, guid) identity pairs of every cached starred entry for a DID.

The starred view matches PDS saved records against these to decide which records the cache can render itself. It must span the whole starred set, not the visible page: a record that looks uncached gets an un-save button that deletes the PDS RECORD rather than un-starring the entry, so narrowing this set changes what a click destroys. Identity strings only — no bodies.

Truncation is reported, not absorbed. The limit is a memory backstop, but hitting it violates the invariant above — and the first version had no way to say so and no ORDER BY, so it silently returned an ARBITRARY subset and every starred article outside it rendered with a record-destroying button. Truncated lets the caller fail closed instead, and the ordering makes the subset at least deterministic across renders rather than whatever the query planner felt like returning.

Variants

All(Vec<(Option<String>, String)>)

The complete set for this DID.

Truncated

limit was reached, so this is a partial set and MUST NOT be used to decide that a record is uncached.