AsosAdjustmentWorker fires every 10 minutes and loads every row of
`hrrr_profiles` on the grid for the latest valid_time. The old query
selected `profile: h.profile` — ~1.3 KB of JSONB × 92k grid points ≈
120 MB of JSONB per tick. Postgrex's Jason.decode! ran inline for
each row and blew past the 15 s pool checkout window, so every tick
was killing connections with:
DBConnection.ConnectionError: client timed out because it queued
and checked out the connection for longer than 15000ms
`score_grid_point/4` only touched the profile array to re-derive
`min_refractivity_gradient`, but `hrrr_profiles` already persists
that value as a scalar column at ingestion time. Teach
`derive_from_hrrr/1` to honour the persisted scalar when it's
present and drop `h.profile` from the worker's SELECT list. Net
effect: same score math, ~1% of the JSONB transfer, tick stays
under the pool deadline.
Covered by a new scorer test that feeds a profile map with no
`:profile` list and asserts the refractivity factor still reflects
the persisted gradient instead of the neutral baseline.
Graham McIntire
805bbff330