pitrou commented on a change in pull request #11798:
URL: https://github.com/apache/arrow/pull/11798#discussion_r761004032
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File path: cpp/src/arrow/compute/kernels/util_internal.h
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@@ -161,6 +164,21 @@ int64_t CopyNonNullValues(const Datum& datum, T* out) {
return n;
}
+//--------------------------------------------------------------------------
+// An internal function to create an empty array, chucked array, record batch
and table.
+
+Result<std::shared_ptr<Array>> CreateEmptyArray(std::shared_ptr<DataType> type,
+ MemoryPool* memory_pool);
Review comment:
1) Is there a reason these functions are in
`compute/kernels/util_internal.h` rather than public APIs? These could go in
the respective public headers, such as `array/util.h`, `chunked_array.h`, etc.
2) We generally use "Make" rather than "Create" when naming factory
functions (e.g. "MakeArrayOfNull"), can you reuse the same convention here?
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