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https://issues.apache.org/jira/browse/ORC-1475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed ORC-1475.
------------------------------

> [C++] ConvertColumnReader.TestConvertNumericToStringVariant fails when 
> compiled with unsigned char
> --------------------------------------------------------------------------------------------------
>
>                 Key: ORC-1475
>                 URL: https://issues.apache.org/jira/browse/ORC-1475
>             Project: ORC
>          Issue Type: Test
>          Components: C++
>    Affects Versions: 1.9.1
>            Reporter: Gang Wu
>            Assignee: Yuanping Wu
>            Priority: Minor
>             Fix For: 2.0.0, 1.9.2
>
>
> {quote}[----------] 6 tests from ConvertColumnReader
> [ RUN      ] ConvertColumnReader.betweenNumericWithoutOverflows
> [       OK ] ConvertColumnReader.betweenNumericWithoutOverflows (7 ms)
> [ RUN      ] ConvertColumnReader.betweenNumricOverflows
> [       OK ] ConvertColumnReader.betweenNumricOverflows (0 ms)
> [ RUN      ] ConvertColumnReader.booleanToString
> [       OK ] ConvertColumnReader.booleanToString (0 ms)
> [ RUN      ] ConvertColumnReader.TestConvertNumericToStringVariant
> /root/orc/c++/test/TestConvertColumnReader.cc:339: Failure
> Expected equality of these values:
>   expected[1]
>     Which is: "254"
>   std::string(readC1.data[i], static_cast<size_t>(readC1.length[i]))
>     Which is: "-2"
> 2
> /root/orc/c++/test/TestConvertColumnReader.cc:339: Failure
> Expected equality of these values:
>   expected[1]
>     Which is: "252"
>   std::string(readC1.data[i], static_cast<size_t>(readC1.length[i]))
>     Which is: "-4"
> 4{quote}



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