bkietz opened a new issue, #36503: URL: https://github.com/apache/arrow/issues/36503
### Describe the bug, including details regarding any error messages, version, and platform. DictionaryArray::dictionary() lazily initalizes an Array to wrap its `ArrayData::dictionary`, but does not explicitly synchronize this so another thread which happens to call the same array's `dictionary()` function would introduce a data race. StructArray::field() does similar lazy initialization but *does* synchronize, so it should be usable as a reference for fixing this. See also discussion here: https://github.com/apache/arrow/pull/36418/files/e7196196b7262bb3988ac35347a94e7b41c22ce8#r1248319000 ### Component(s) C++ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
