CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_events_account_created
ON account_events (account_id, created_at DESC)
INCLUDE (event_type)
WHERE deleted_at IS NULL;

EXPLAIN (ANALYZE, BUFFERS)
SELECT event_type, created_at
FROM account_events
WHERE account_id = 42 AND deleted_at IS NULL
ORDER BY created_at DESC
LIMIT 50;