Hello,

Recently some issues have been opened for big-endian support (i.e.
support for big-endian *hosts*), and a couple patches submitted, thanks
to Kazuaki Ishizaki.  See e.g.:

https://issues.apache.org/jira/browse/ARROW-8457
https://issues.apache.org/jira/browse/ARROW-8467
https://issues.apache.org/jira/browse/ARROW-8486
https://issues.apache.org/jira/browse/ARROW-8506
https://issues.apache.org/jira/browse/PARQUET-1845

Achieving big-endian support support accross the C++ Arrow and Parquet
codebases is likely to be a very significant effort, potentially
requiring cooperation between multiple developers.  An additional
problem is that, without any Continuous Integration set up, it will be
impossible to ensure progress and be notified of regressions.

If other people are seriously interested in the desired outcome, they
should probably team up with Kazuaki Ishizaki and discuss a practical
plan to avoid drowning in the difficulties.

Regards

Antoine.

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