QUERY PLAN
Aggregate (cost=7128.30..7128.31 rows=1 width=8)
-> Sort (cost=7128.27..7128.28 rows=2 width=243)
Sort Key: tbl_comments.created_at DESC
-> Gather (cost=1000.00..7128.26 rows=2 width=243)
Workers Planned: 2
-> Parallel Seq Scan on tbl_comments (cost=0.00..6128.06 rows=1 width=243)
Filter: ((parent IS NULL) AND ((object_type)::text = '20'::text) AND (object_id = 9021))