Files
HealthLog/src/lib/analytics
Marc-André Bombeck f5d6710670 perf(analytics): keep closed blocks of past readings cached across syncs
Every sync marked all of an account's analytics cells stale, so the slice
re-read the pre-fold remainder (every reading older than five years,
folded per source and day, the slice's largest statement on a long
history) and the day view re-read its past history blocks, although a
sync of today's readings cannot change either.

A cache key can now name the instant its value's readings end before
(closedBlockKeyPart). invalidateUserMeasurements takes touchedFrom, the
earliest measuredAt a write created, changed or removed, and leaves such
blocks in place when it is not earlier; without it every block goes as
before. The batch route passes it from the identities it wrote. The
pre-fold remainder moves into its own module and is cached as a closed
block; the day view's past history blocks carry their end, with a day of
margin for a night across midnight.

The batch route's two up-front reads move into batch-stored-rows.ts with
the once-per-batch key rule they share.
2026-10-22 07:24:59 +02:00
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