QUERY PLAN
Sort (cost=31.50..31.51 rows=4 width=314)
Sort Key: tbl_project_architects.contribution DESC, tbl_project_architects.engineer_id
-> Hash Left Join (cost=10.45..31.46 rows=4 width=314)
Hash Cond: (tbl_project_architects.engineer_id = u.id)
-> Seq Scan on tbl_project_architects (cost=0.00..21.00 rows=4 width=40)
Filter: (project_id = 1)
-> Hash (cost=10.20..10.20 rows=20 width=278)
-> Seq Scan on tbl_users u (cost=0.00..10.20 rows=20 width=278)