Laszlo Bodor created HIVE-18823: ----------------------------------- Summary: Vectorization: introduce qtest for SUM (IF/WHEN) with vectorization for ORC Key: HIVE-18823 URL: https://issues.apache.org/jira/browse/HIVE-18823 Project: Hive Issue Type: Test Components: Hive Affects Versions: 2.3.0 Reporter: Laszlo Bodor
HIVE-16110 introduced some issues when using SUM aggregations with WHEN clause. As far as I can see, there is no separate qtests for validating that, vectorized_case is quite close, but not the same. The test case would be: {code:java} set hive.vectorized.execution.enabled=false; drop table if exists vectorization_sum_if_when_a; drop table if exists vectorization_sum_if_when_b; create table vectorization_sum_if_when_a (x int) stored as orc; insert into table vectorization_sum_if_when_a values (0), (1), (0), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL); create table vectorization_sum_if_when_b (x int) stored as orc; insert into table vectorization_sum_if_when_b select least(t1.x + t2.x + t3.x + t4.x, 1) from vectorization_sum_if_when_a t1, vectorization_sum_if_when_a t2, vectorization_sum_if_when_a t3, vectorization_sum_if_when_a t4; select count(*), x from vectorization_sum_if_when_b group by x; select sum(IF(x is null, 1, 0)), count(1) from vectorization_sum_if_when_b; select sum(IF(x=1, 1, 0)), count(1) from vectorization_sum_if_when_b; select sum((case WHEN x = 1 THEN 1 else 0 end)) from vectorization_sum_if_when_b; select sum((case WHEN x = 1 THEN 1 else 0 end)), sum((case WHEN x = 1 THEN 1 when x is null then 0 else 0 end)) from vectorization_sum_if_when_b; set hive.vectorized.execution.enabled=true; select sum(IF(x is null, 1, 0)), count(1) from vectorization_sum_if_when_b; select sum(IF(x=1, 1, 0)), count(1) from vectorization_sum_if_when_b; select sum((case WHEN x = 1 THEN 1 else 0 end)) from vectorization_sum_if_when_b; select sum((case WHEN x = 1 THEN 1 else 0 end)), sum((case WHEN x = 1 THEN 1 when x is null then 0 else 0 end)) from vectorization_sum_if_when_b; {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)