QUERY PLAN
Seq Scan on tbl_purchase_contract_product_rels (cost=0.00..19.40 rows=23 width=37)
Filter: (purchase_contract_id = ANY ('{4501,4499,4498,4487,4473,4471,4470,4468,4465,4464,4463,4461,4460,4459,4458,4456,4452,4451,4449,4448}'::integer[]))