QUERY PLAN
Hash Left Join (cost=38.95..51.74 rows=21 width=21)
Hash Cond: (tbl_project_architects.engineer_id = u.id)
-> Bitmap Heap Scan on tbl_project_architects (cost=29.71..42.44 rows=21 width=12)
Recheck Cond: (project_id = ANY ('{4146,3957,3854,3796,4174,4172,4170,4169,4168,4167,4166,4144,4161,4164,4151,4157,4155,4145,4139,4142}'::integer[]))
-> Bitmap Index Scan on tbl_project_architects_project_engineer_idx (cost=0.00..29.70 rows=21 width=0)
Index Cond: (project_id = ANY ('{4146,3957,3854,3796,4174,4172,4170,4169,4168,4167,4166,4144,4161,4164,4151,4157,4155,4145,4139,4142}'::integer[]))
-> Hash (cost=7.44..7.44 rows=144 width=13)
-> Seq Scan on tbl_users u (cost=0.00..7.44 rows=144 width=13)