Hello Ryan
Le 07/07/2020 à 11:21, Ryan Murray a écrit : > > While trying to finish up the Union integration test between Java & C++ > https://github.com/apache/arrow/pull/7290 I came across a minor problem > that I hope I could get some clarification on. > > I have the integration test for C++ -> Java passing but Java -> C++ is > giving me trouble. The check here: > https://github.com/apache/arrow/blob/master/cpp/src/arrow/array/validate.cc#L368 > fails > as the Union buffers have no validity bitmap. Skipping this check for > Unions fixes the issue and integration tests pass. This check fails because you are sending a non-zero null count. Since union arrays have no validity bitmap, they should have a zero null count (their child arrays, however, /can/ have embedded nulls). Regards Antoine.
