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https://issues.apache.org/jira/browse/HIVE-19399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471364#comment-16471364
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Bharathkrishna Guruvayoor Murali commented on HIVE-19399:
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I am interested in working on this Jira as it is a chance for me to get
familiarized with vectorization related stuff!
If nobody is planning to work on it soon, I can take a look at this :)
> Down cast from int to tinyint generating incorrect value for vectorization
> --------------------------------------------------------------------------
>
> Key: HIVE-19399
> URL: https://issues.apache.org/jira/browse/HIVE-19399
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Affects Versions: 3.1.0
> Reporter: Haifeng Chen
> Priority: Major
>
> The following sql scripts generating different result for vectorization
> disabled and enabled (both for ORC and for parquet).
> drop table test_schema;
> create table test_schema (f int) stored as parquet;
> insert into test_schema values ('99999');
> select cast(f as tinyint) + 1 from test_schema;
> For non-vectorization, the result is -96 while for vectorization mode, it is
> 100000
>
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