[jira] [Assigned] (ARROW-4034) [Ruby] Interface for FileOutputStream doesn't respect append=True

["Kouhei Sutou (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-4034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kouhei Sutou reassigned ARROW-4034:
-----------------------------------

    Assignee: Kouhei Sutou

> [Ruby] Interface for FileOutputStream doesn't respect append=True
> -----------------------------------------------------------------
>
>                 Key: ARROW-4034
>                 URL: https://issues.apache.org/jira/browse/ARROW-4034
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Ruby
>         Environment: macOS High Sierra version 10.13.4; ruby 2.4.1; gtk-doc, gobject-introspection, boost, Arrow C++ & Parquet C++, Arrow GLib all installed via homebrew
>            Reporter: Ian Murray
>            Assignee: Kouhei Sutou
>            Priority: Blocker
>
> It seems that the PR (#1978) that resolved Issue #2018 has not cascaded down through the existing ruby interface.
> I've been experimenting with variations of the `write-file.rb` examples, but passing in the append flag as true (`Arrow::FileOutputStream.open("/tmp/file.arrow", true)`) still results in overwriting the file, and trying the newer interface using truncate and append flags throws `ArgumentError: wrong number of arguments (3 for 2)`.



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