QUERY PLAN
Aggregate (cost=6381.59..6381.60 rows=1 width=8)
-> Gather (cost=1000.00..6381.59 rows=2 width=0)
Workers Planned: 2
-> Parallel Seq Scan on tbl_comments (cost=0.00..5381.39 rows=1 width=0)
Filter: (((object_type)::text = '20'::text) AND (object_id = 7945))