# name: benchmark/micro/join/blockwise_nl_join.benchmark
# description: Left join between two tables, where the left table is significantly less than the right table.
# group: [join]

name Left Join (big RHS, small LHS)
group join

load
create table lhs as select * from range(10000) lhs(id);
alter table lhs add column enroll_date date;
update lhs set enroll_date = date '2000-01-01' + cast(round(random()*3000) as integer);
create table rhs as select * from range(100000) rhs(id);
update rhs set id = random() * 1000000;
alter table rhs add column claim_date date;
update rhs set claim_date = date '2000-01-01' + cast(random()*3000 as integer);
alter table rhs add column claim_cost double;
update rhs set claim_cost = random() * 10000;

run
select lhs.id, sum(coalesce(claim_cost,0))
from lhs left join rhs on lhs.id = rhs.id
and datediff('month',enroll_date,claim_date) between 1 and 12
group by lhs.id order by lhs.id;