Marc-André Bombeck d2bad6943c perf(insights): route daily chart fetches through rollup buckets ...

The Insights trends row fires three parallel
GET /api/measurements?type=…&aggregate=daily&limit=5000 requests on
mount (BP_SYS / BP_DIA / WEIGHT). The legacy date_trunc path scanned
the measurements table each time — ~3 s per call on Marc's account.

Add a `source=rollup` opt-in on the listMeasurements schema. When set
alongside `aggregate=daily` the route reads from measurement_rollups
DAY buckets instead, swapping a full-table scan for a small indexed
read against the ~5 k-row rollup table. Cumulative HK metrics get
mean * count to reconstruct the daily SUM the chart expects.

The chart-data client opts in for every windowDays > 7 fetch so the
trends row + every sub-page chart benefit. When the rollup returns
zero buckets for the requested window the route falls through to the
live aggregate so brand-new accounts still render their first chart
correctly.

2026-05-17 12:34:00 +02:00

88 KiB

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