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https://issues.apache.org/jira/browse/ARROW-12987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17358608#comment-17358608
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Anthony Louis Gotlib Ferreira commented on ARROW-12987:
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[~jorisvandenbossche] I found the error, I think it is a bug in the *utf8proc*
library.
The library is not converting the [https://www.compart.com/en/unicode/U+00DF]
character to its uppercase representation that is
[https://www.compart.com/en/unicode/U+1E9E.|https://www.compart.com/en/unicode/U+1E9E]
I take a look at the *utf8proc* repository and I check that the error was fixed
by that Pull Request [https://github.com/JuliaStrings/utf8proc/pull/134] that
is part of the 2.2 release:
[https://github.com/JuliaStrings/utf8proc/releases/tag/v2.2.0]
So I think that the *utf8proc* library version is outdated in the nightly build
environment, I will check how to update it with the members
> [CI] test-ubuntu-18.04 nightly builds are failing due to Gandiva "TestUpper"
> test failure
> -----------------------------------------------------------------------------------------
>
> Key: ARROW-12987
> URL: https://issues.apache.org/jira/browse/ARROW-12987
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++ - Gandiva, Continuous Integration
> Reporter: Joris Van den Bossche
> Assignee: Anthony Louis Gotlib Ferreira
> Priority: Major
>
> Didn't yet see another JIRA for this, see eg
> https://github.com/ursacomputing/crossbow/runs/2756066459. It's failing on
> the "test-ubuntu-18.04-cpp", "test-ubuntu-18.04-cpp-release" and
> "test-ubuntu-18.04-cpp-static" builds.
>
> Failure message:
> {code}
> [ RUN ] TestGdvFnStubs.TestUpper
> /arrow/cpp/src/gandiva/gdv_function_stubs_test.cc:327: Failure
> Expected equality of these values:
> std::string(out_str, out_len)
> Which is: "M\xC3\x96" "BELTR\xC3\x84GERF\xC3\x9C\xC3\x9F" "E"
> As Text: "MÖBELTRÄGERFÜßE"
> "MÖBELTRÄGERFÜẞE"
> Which is: "M\xC3\x96" "BELTR\xC3\x84GERF\xC3\x9C\xE1\xBA\x9E" "E"
> As Text: "MÖBELTRÄGERFÜẞE"
> [ FAILED ] TestGdvFnStubs.TestUpper (1 ms)
> {code}
> I _think_ this is failing since https://github.com/apache/arrow/pull/10040 /
> ARROW-11565 (cc [~praveenbingo] [~anthonylouis] [~projjal])
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