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https://issues.apache.org/jira/browse/DRILL-3712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14949503#comment-14949503
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Steven Phillips commented on DRILL-3712:
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I think one solution would be to write a UDF to convert from utf16 to utf8. We
already have a function that does the reverse: CastVarCharVar16Char .
> Drill does not recognize UTF-16-LE encoding
> -------------------------------------------
>
> Key: DRILL-3712
> URL: https://issues.apache.org/jira/browse/DRILL-3712
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Text & CSV
> Affects Versions: 1.1.0
> Environment: OSX, likely Linux.
> Reporter: Edmon Begoli
> Fix For: Future
>
>
> We are unable to process files that OSX identifies as character sete UTF16LE.
> After unzipping and converting to UTF8, we are able to process one fine.
> There are CONVERT_TO and CONVERT_FROM commands that appear to address the
> issue, but we were unable to make them work on a gzipped or unzipped version
> of the UTF16 file. We were able to use CONVERT_FROM ok, but when we tried
> to wrap the results of that to cast as a date, or anything else, it failed.
> Trying to work with it natively caused the double-byte nature to appear (a
> substring 1,4 only return the first two characters).
> I cannot post the data because it is proprietary in nature, but I am posting
> this code that might be useful in re-creating an issue:
> {noformat}
> #!/usr/bin/env python
> """ Generates a test psv file with some text fields encoded as UTF-16-LE. """
> def write_utf16le_encoded_psv():
> total_lines = 10
> encoded = "Encoded B".encode("utf-16-le")
> with open("test.psv","wb") as csv_file:
> csv_file.write("header 1|header 2|header 3\n")
> for i in xrange(total_lines):
> csv_file.write("value
> A"+str(i)+"|"+encoded+"|value C"+str(i)+"\n")
> if __name__ == "__main__":
> write_utf16le_encoded_psv()
> {noformat}
> then:
> tar zcvf test.psv.tar.gz test.psv
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