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https://issues.apache.org/jira/browse/SPARK-9238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636206#comment-14636206
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Apache Spark commented on SPARK-9238:
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User 'zhichao-li' has created a pull request for this issue:
https://github.com/apache/spark/pull/7582
> two extra useless entries for bytesOfCodePointInUTF8
> ----------------------------------------------------
>
> Key: SPARK-9238
> URL: https://issues.apache.org/jira/browse/SPARK-9238
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: zhichao-li
> Priority: Trivial
>
> Only a trial thing, not sure if I understand correctly or not but I guess
> only 2 entries in bytesOfCodePointInUTF8 for the case of 6 bytes
> codepoint(1111110x) is enough.
> Details can be found from https://en.wikipedia.org/wiki/UTF-8 in
> "Description" section.
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