QUERY PLAN
Aggregate (cost=807.47..807.48 rows=1 width=8)
-> Sort (cost=807.44..807.45 rows=2 width=1766)
Sort Key: "*SELECT* 1".start_at DESC, "*SELECT* 1".ticket_id DESC
-> Result (cost=0.56..807.43 rows=2 width=1766)
-> Append (cost=0.56..807.41 rows=2 width=60)
-> Subquery Scan on "*SELECT* 1" (cost=0.56..125.38 rows=1 width=60)
-> Nested Loop Left Join (cost=0.56..125.37 rows=1 width=280)
-> Nested Loop (cost=0.29..117.07 rows=1 width=28)
-> Seq Scan on tbl_pre_sales p (cost=0.00..96.45 rows=2 width=24)
Filter: ((start_at IS NOT NULL) AND (end_at IS NOT NULL) AND (engineer_id IS NOT NULL) AND ((NOT is_draft) OR (is_draft IS NULL)) AND (end_at > start_at) AND (engineer_id = 1005))
-> Index Scan using tbl_cases_pkey on tbl_cases c (cost=0.29..8.30 rows=1 width=12)
Index Cond: (id = p.case_id)
Filter: (project_id = 3975)
-> Index Scan using tbl_clients_pkey on tbl_clients cl (cost=0.28..8.29 rows=1 width=8)
Index Cond: (id = COALESCE(p.client_id, c.client_id))
-> Subquery Scan on "*SELECT* 2" (cost=310.00..682.03 rows=1 width=60)
-> Nested Loop Left Join (cost=310.00..682.02 rows=1 width=280)
-> Hash Join (cost=309.72..673.72 rows=1 width=28)
Hash Cond: (i.case_id = c_1.id)
-> Seq Scan on tbl_implement_records i (cost=0.00..357.85 rows=2340 width=20)
Filter: ((arrived_at IS NOT NULL) AND (left_at IS NOT NULL) AND ((NOT is_draft) OR (is_draft IS NULL)) AND (left_at > arrived_at))
-> Hash (cost=309.71..309.71 rows=1 width=16)
-> Seq Scan on tbl_cases c_1 (cost=0.00..309.71 rows=1 width=16)
Filter: ((last_engineer IS NOT NULL) AND (project_id = 3975) AND (last_engineer = 1005))
-> Index Scan using tbl_clients_pkey on tbl_clients cl_1 (cost=0.28..8.29 rows=1 width=8)
Index Cond: (id = COALESCE(i.client_id, c_1.client_id))