You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hive.apache.org by "Chiran Ravani (Jira)" <ji...@apache.org> on 2022/06/13 14:46:00 UTC
[jira] [Created] (HIVE-26320) Incorrect case evaluation for Parquet based table.
Chiran Ravani created HIVE-26320:
------------------------------------
Summary: Incorrect case evaluation for Parquet based table.
Key: HIVE-26320
URL: https://issues.apache.org/jira/browse/HIVE-26320
Project: Hive
Issue Type: Improvement
Components: HiveServer2, Query Planning
Affects Versions: 4.0.0-alpha-1
Reporter: Chiran Ravani
Query involving case statement with two or more conditions leads to incorrect result for tables with parquet format, The problem is not observed with ORC or TextFile.
*Steps to reproduce*:
{code:java}
create external table case_test_parquet(kob varchar(2),enhanced_type_code int) stored as parquet;
insert into case_test_parquet values('BB',18),('BC',18),('AB',18);
select case when (
(kob='BB' and enhanced_type_code='18')
or (kob='BC' and enhanced_type_code='18')
)
then 1
else 0
end as logic_check
from case_test_parquet;
{code}
Result:
{code}
0
0
0
{code}
Expected result:
{code}
1
1
0
{code}
The problem does not appear when setting hive.optimize.point.lookup=false.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)