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61c4c6606b
The view() action sets recursive=1 on the Event model, which the
subsequent find('neighbors') calls inherited. That made each of the four
neighbor lookups (prev/next, prevOfMonitor/nextOfMonitor) SELECT every
column from Events plus LEFT JOIN Monitor and Storage, then fire a
separate Frames hasMany query per neighbor row. Only Event.Id is used
downstream.
Pass fields=Event.Id and recursive=-1 on each neighbor call so the
generated SQL is just:
SELECT Event.Id FROM Events AS Event WHERE Event.Id < ?
ORDER BY Event.Id DESC LIMIT 1
The per-monitor variant uses Events_MonitorId_idx which already covers
(MonitorId, Id) via InnoDB's implicit PK suffix, so no schema change is
needed.