alter session set `planner.enable_hashjoin` = false; | |
select count(*) from store_sales ss1, store_sales ss2 where ss1.ss_customer_sk = ss2.ss_customer_sk and ss1.ss_store_sk = 1 and ss2.ss_store_sk = 2; | |
alter session set `planner.enable_hashjoin` = true; |