rewreu opened a new issue #12527:
URL: https://github.com/apache/arrow/issues/12527
Hi there,
What's the good way to run arrow::StringArray::GetString in parallel?
The following code hangs due to running `a->GetString(i)` with multithreads
```c++
std::shared_ptr<arrow::StringArray> a;
std::unordered_set<std::string> UniqueStrings;
#pragma omp parallel for
for(long i = 0; i < lens; i++) {
UniqueStrings.insert(a->GetString(i));
doSomethingElse();
}
```
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