QUERY PLAN
Bitmap Heap Scan on tbl_sales_group_relationships (cost=8.46..18.71 rows=20 width=12)
Recheck Cond: (group_id = ANY ('{1,2}'::integer[]))
-> Bitmap Index Scan on tbl_sales_group_relationships_pkey (cost=0.00..8.46 rows=20 width=0)
Index Cond: (group_id = ANY ('{1,2}'::integer[]))