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https://issues.apache.org/jira/browse/TAJO-842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14008051#comment-14008051
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Prafulla T commented on TAJO-842:
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Are these rules defined by database implementation OR is it decided by
specification?
If so, Can you update the issue with the link?
> 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
>
> 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: throws SQLException("Value is null");
> - Date/Time type: throws SQLException("Value is null");
> - Boolean: throws SQLException("Value is null");
> - getObject(): return java null
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