-- 016_fix_check_status_misattribution.up.sql
-- The scheduler historically wrote entity_status and metric_samples keyed by
-- the *check* entity (check_defs.entity_id) instead of the entity being
-- monitored (check_defs.target_id). Every real host/service/lxc/etc. entity
-- was therefore permanently stuck at health='unknown' while all observed
-- health and metrics accumulated on the internal probe entities instead.
-- The Go fix (scheduler.go) starts writing to target_id going forward; this
-- migration removes the now-orphaned check-entity rows so dashboard/fleet
-- health rollups stop double-counting probes as if they were monitored
-- entities. Historical metric_samples on check entities are left in place
-- (time-series data, not safe to reattribute retroactively) but are no
-- longer queried through any entity-scoped view once checks stop being
-- written to.

DELETE FROM entity_status
WHERE entity_id IN (SELECT id FROM entities WHERE type = 'check');