QUERY PLAN
Aggregate (cost=142.71..142.72 rows=1 width=8)
-> Sort (cost=142.41..142.46 rows=20 width=623)
Sort Key: c.signed_at DESC, c.created_at DESC
-> Group (cost=141.88..141.98 rows=20 width=623)
Group Key: c.id
-> Sort (cost=141.88..141.93 rows=20 width=16)
Sort Key: c.id
-> Hash Left Join (cost=85.09..141.44 rows=20 width=16)
Hash Cond: (client.sales_rep = sgr.sales_id)
-> Nested Loop Left Join (cost=82.94..139.12 rows=20 width=20)
-> Nested Loop (cost=82.67..129.55 rows=20 width=20)
-> Index Only Scan using tbl_suppliers_pkey on tbl_suppliers supplier (cost=0.28..8.29 rows=1 width=4)
Index Cond: (id = 431)
-> Hash Right Join (cost=82.39..121.05 rows=20 width=24)
Hash Cond: (pcr.contract_id = c.id)
-> Seq Scan on tbl_purchase_client_rels pcr (cost=0.00..33.11 rows=2111 width=8)
-> Hash (cost=82.14..82.14 rows=20 width=20)
-> Seq Scan on tbl_purchase_contracts c (cost=0.00..82.14 rows=20 width=20)
Filter: ((cost_type = ANY ('{1,2}'::integer[])) AND (supplier_id = 431))
-> Index Scan using tbl_clients_pkey on tbl_clients client (cost=0.28..0.48 rows=1 width=8)
Index Cond: (pcr.client_id = id)
-> Hash (cost=1.51..1.51 rows=51 width=4)
-> Seq Scan on tbl_sales_group_relationships sgr (cost=0.00..1.51 rows=51 width=4)