QUERY PLAN
Aggregate (cost=7126.91..7126.92 rows=1 width=8)
-> Sort (cost=7126.89..7126.90 rows=1 width=243)
Sort Key: tbl_comments.created_at DESC
-> Gather (cost=1000.00..7126.88 rows=1 width=243)
Workers Planned: 2
-> Parallel Seq Scan on tbl_comments (cost=0.00..6126.78 rows=1 width=243)
Filter: ((parent IS NULL) AND ((object_type)::text = '7'::text) AND (object_id = 4484))