QUERY PLAN
Aggregate (cost=7128.19..7128.20 rows=1 width=8)
-> Sort (cost=7128.17..7128.18 rows=1 width=243)
Sort Key: tbl_comments.created_at DESC
-> Gather (cost=1000.00..7128.16 rows=1 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 = '1'::text) AND (object_id = 4175))