pitrou commented on a change in pull request #11916:
URL: https://github.com/apache/arrow/pull/11916#discussion_r800880469
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File path: ci/docker/conda-cpp.dockerfile
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@@ -54,6 +56,7 @@ ENV ARROW_BUILD_TESTS=ON \
ARROW_WITH_SNAPPY=ON \
ARROW_WITH_ZLIB=ON \
ARROW_WITH_ZSTD=ON \
+ CMAKE_CXX_STANDARD=17 \
Review comment:
@xhochy Can you remind me the reason of `CMAKE_CXX_STANDARD=17` here?
Also, perhaps explain it in a comment?
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