Amruth S created HIVE-14741:
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Summary: Incorrect results on boolean col when vectorization is ON
Key: HIVE-14741
URL: https://issues.apache.org/jira/browse/HIVE-14741
Project: Hive
Issue Type: Bug
Affects Versions: 2.1.0, 2.0.0
Reporter: Amruth S
I have attached the ORC part file on which the issue is manifesting. It has
just one boolean column (lot of nulls, 231=trues : verified using orc file dump
utility)
1) Create external table on the part file attached
CREATE EXTERNAL TABLE bool_vect_issue (
`bool_col` BOOLEAN)
ROW FORMAT SERDE
'org.apache.hadoop.hive.ql.io.orc.OrcSerde'
STORED AS INPUTFORMAT
'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'
LOCATION
'<loc to which the part file is copied>';
2)
set hive.vectorized.execution.enabled = true;
select sum(if((bool_col) , 1, 0)) from bool_vect_issue;
gives
708206
3)
set hive.vectorized.execution.enabled = false;
select sum(if((bool_col) , 1, 0)) from bool_vect_issue;
gives
231
The issue seem to have the same impact as HIVE-12435
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