QUERY PLAN
GroupAggregate (cost=73.76..73.78 rows=1 width=12)
Group Key: source_id
-> Sort (cost=73.76..73.77 rows=1 width=4)
Sort Key: source_id
-> Seq Scan on tbl_source_refuse_logs (cost=0.00..73.75 rows=1 width=4)
Filter: ((user_id = 1001) AND (source_id = ANY ('{551,550,549,548,547,546,545,544,543,542,541,540,539,538,537,536,535,534,533,532}'::integer[])))