Marc-André Bombeck 03aec3ec12 perf(db): index every acting foreign key and drop prefix indexes ...

Twenty-one foreign keys with ON DELETE CASCADE or SET NULL had no index
leading with their column, so deleting a parent scanned the child table
once per row; medication_intake_events.medication_id was the one an
account delete paid for. Seventeen small-table indexes and the measurements
(user_id, type, measured_at) index repeated the leading columns of another
index and only cost writes.

Migration 0415 adds and drops the small-table ones in one DO block under a
bounded lock wait; 0416 drops the measurements index concurrently, in a
file of its own. An integration test holds the schema to both rules from
the catalog, each with a counter-check, and compares the plans of the
user-and-type query shapes on a seeded table with and without the dropped
index. The lock-timeout guard now also requires a CONCURRENTLY statement
to stand alone in its file.

2026-10-20 13:07:24 +02:00

..

fixtures

feat(anamnesis): soft-delete AUDIT-C in its route, admit both AUDIT-C verbs at manage level, and settle the guards

2026-10-16 01:24:56 +02:00

integration

perf(db): index every acting foreign key and drop prefix indexes

2026-10-20 13:07:24 +02:00