Several export reads sorted only by a column two rows can share (a
creation time, a day, a name), and a few to-many reads (medication
schedules, mood tag links, cycle and illness symptom links) had no order
at all. Tied rows then came back in whatever order they sat on disk, so
two exports of one account could differ, and the parity goldens flapped
once the fixture's child rows shared their pinned timestamps.
Each read now ends its order in the model's primary key: the existing
sort key plus `id`, or the remaining key columns of a compound key
(nutrient `source`, hidden tag `moodTagId`, link `symptomId` /
`moodTagId` / `documentId`). Schedules sort by window start, then id.
The restore re-export reads through the same modules, so it inherits
the order.
The parity goldens are unchanged: they already hold the tie-broken
order, so no regeneration was needed and they still pin the output of
the pre-split exporter.
A new integration test runs both purposes, built and streamed, through
a client that records every findMany and every nested to-many read, and
fails on any whose order does not cover the primary key (keys pinned by
an equality in `where`, or by the foreign key to the parent, count as
covered). A second case writes the same tied rows in forward and
reverse physical order and requires byte-identical files.
A portable file carries no id for a medication or a lab result, so the
restore mints fresh ones and the links that named the old ids were
dropped as having no end. Carry the source id as ref on both entries and
re-point the links through an old-to-new map on restore.
Lab result to document, visit to medication, visit to dose, medication to
document and medication to condition now ride the full backup in their own
section file and come back with their original filing instant. A link whose
end the restore did not write is dropped and reported under the new
relationLink skip kind. The tables leave the coverage register for the
two-ended list, guarded by relation-links-backup-completeness.test.ts and
seeded in the round trip.
Marc-André Bombeck