ql/src/test/queries/clientpositive/cte_mat_2.q

--! qt:dataset:src
set hive.mapred.mode=nonstrict;
set hive.optimize.cte.materialize.threshold=3;
set hive.explain.user=true;

explain
with q1 as (select * from src where key= '5')
select a.key
from q1 a join q1 b
on a.key=b.key;