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https://issues.apache.org/jira/browse/TAJO-842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinho Kim resolved TAJO-842.
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Resolution: Fixed
Fix Version/s: 0.9.0
Committed the patch to master branch
> NULL handling in JDBC.
> ----------------------
>
> Key: TAJO-842
> URL: https://issues.apache.org/jira/browse/TAJO-842
> Project: Tajo
> Issue Type: Improvement
> Reporter: Hyoungjun Kim
> Assignee: Hyoungjun Kim
> Fix For: 0.9.0
>
>
> Currently JDBC doesn't handle NULL value, only wasnull() is provided. JDBC
> handles NULL data like the following rule.
> - Text type: return java null.
> - Int, Float type: return 0
> - Date/Time type: return null.
> - Boolean: return false
> - getObject(): return java null
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