Github user jinfengni commented on the pull request:
https://github.com/apache/drill/pull/458#issuecomment-220393770
@jcmcote , I opened DRILL-4688 to track this incorrect regression. Please
use DRILL-4688 to submit either a patch or pull request to address this issue.
As part of the verification for this issue, QA plan to add a set of test
suite to cover the cases of multi-byte characters. Previously, there is no
such test coverage and hence we are not able to catch this regression.
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