QUERY PLAN
Aggregate (cost=6382.79..6382.80 rows=1 width=8)
-> Sort (cost=6382.77..6382.78 rows=1 width=243)
Sort Key: tbl_comments.created_at DESC
-> Gather (cost=1000.00..6382.76 rows=1 width=243)
Workers Planned: 2
-> Parallel Seq Scan on tbl_comments (cost=0.00..5382.66 rows=1 width=243)
Filter: ((parent IS NULL) AND ((object_type)::text = '20015'::text) AND (object_id = 12))