-> Seq Scan on snmpalias sa (cost=0.00..1.60 rows=60 width=15) (actual time=0.002..0.
-> Seq Scan on config cfg_2 (cost=0.00..4.71 rows=27 width=38) (actual time=0.004..0.
-> Group (cost=978.03..979.03 rows=100 width=62) (actual time=37.700..39.
-> Index Only Scan using pk_device_alias on device_snmpalias dsa (cost=0.
->  Seq Scan on snmpalias sa  (cost=0.00..1.60 rows=60 width=15) (actual time=0.002..0.
->  Seq Scan on config cfg_2  (cost=0.00..4.71 rows=27 width=38) (actual time=0.004..0.
->  Group  (cost=978.03..979.03 rows=100 width=62) (actual time=37.700..39.
->  Index Only Scan using pk_device_alias on device_snmpalias dsa  (cost=0.