[jira] [Created] (HIVE-26320) Incorrect case evaluation for Parquet based table.

[Chiran Ravani (Jira)]

Chiran Ravani created HIVE-26320:
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             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.



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