Micah Kornfield created ARROW-12340: ---------------------------------------
Summary: [Java] Avro to Arrow converter doesn't appear to generate valid arrow data Key: ARROW-12340 URL: https://issues.apache.org/jira/browse/ARROW-12340 Project: Apache Arrow Issue Type: Bug Reporter: Micah Kornfield I think this is related to how Unions are handled (I had thought unions of with a null and one other type would get created to the nullable type, but that is a separate issue). I haven't had time to fully diagnose, but remnants of the code I tried to use are at [https://gist.github.com/emkornfield/efd3a4c3c1012dc19cf9769198e3bffe] And the CSV file from https://issues.apache.org/jira/browse/ARROW-11629?jql=text%20~%20%22arrow%20drill%20parquet%20dictionary%22 produce data that isn't readable by the C++ implementation. -- This message was sent by Atlassian Jira (v8.3.4#803005)