lidavidm commented on a change in pull request #12162:
URL: https://github.com/apache/arrow/pull/12162#discussion_r786022104
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File path: cpp/src/arrow/compute/kernels/scalar_nested.cc
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@@ -17,6 +17,7 @@
// Vector kernels involving nested types
+#include <iostream>
Review comment:
Note you can use `arrow/util/logging.h` and `ARROW_LOG(WARNING) << ...;`
(that way you don't have to deal with std::endl/the header might already be
included, also, you'll get line numbers)
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