Cache input binding a query plan to a persisted region.
A fresh region carries its manifest identity as a fingerprint validator, so
the plan's own fingerprint changes when the region does. A stale region carries
freshness only: reporting a validator would claim a revalidation the offline
read will never perform.
Cache input binding a query plan to a persisted region.
A fresh region carries its manifest identity as a
fingerprintvalidator, so the plan's own fingerprint changes when the region does. A stale region carries freshness only: reporting a validator would claim a revalidation the offline read will never perform.