raulcd commented on code in PR #46161:
URL: https://github.com/apache/arrow/pull/46161#discussion_r2055742451
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cpp/src/arrow/compute/kernels/test_util.h:
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@@ -0,0 +1,30 @@
+// Licensed to the Apache Software Foundation (ASF) under one
Review Comment:
Thanks for the detailed explanation!
The only thing I am not sure I understand is:
> Here we have an internal API that is used by unit tests, so needs to be
exported in a DLL.
What is the difference with for example:
```
Result<std::shared_ptr<Table>> MakeRandomTimeSeriesTable(
const TableGenerationProperties& properties)
```
We are not using any kind of export there?
And the `RunEndEncodeTableColumns` is used in a single test on
`hash_aggregate_test.cc`
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