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https://issues.apache.org/jira/browse/IMPALA-13870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18089289#comment-18089289
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Arnab Karmakar commented on IMPALA-13870:
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There's no hard requirement for bumping up the C++ standard, we can still go
ahead and add operator<< support with C++98.
> Add operator << support for StringVal
> -------------------------------------
>
> Key: IMPALA-13870
> URL: https://issues.apache.org/jira/browse/IMPALA-13870
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Yida Wu
> Assignee: Arnab Karmakar
> Priority: Major
>
> StringVal may not have a null terminator in its pointer, so its length must
> be considered when using it. Relying only on the pointer can lead to
> incorrect usage. Implementing the << operator for StringVal could help reduce
> such errors.
> However, this may require incresing the minimum C++ standard for udf.h to
> C++11 in Impala 5.
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