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https://issues.apache.org/jira/browse/HIVE-24666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal Vijayaraghavan resolved HIVE-24666.
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Fix Version/s: 4.0.0
Resolution: Fixed
Pushed to master, thanks [~dengzh] for the work & patience.
> Vectorized UDFToBoolean may unable to filter rows if input is string
> --------------------------------------------------------------------
>
> Key: HIVE-24666
> URL: https://issues.apache.org/jira/browse/HIVE-24666
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-24666.2.patch
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> If we use cast boolean to filter rows, in vectorization mode the filter may
> be unable to filter rows, step to reproduce:
> {code:java}
> create table vtb (key string, value string);
> insert into table vtb values('0', 'val0'), ('false', 'valfalse'),('off',
> 'valoff'),('no','valno'),('vk', 'valvk');
> select distinct value from vtb where cast(key as boolean); {code}
> It's seems we don't generate a SelectColumnIsTrue to filter the rows if the
> casted type is string:
>
> [https://github.com/apache/hive/blob/ff6f3565e50148b7bcfbcf19b970379f2bd59290/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java#L2995-L2996]
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