**Reporter**: [Wes McKinney](https://issues.apache.org/jira/browse/ARROW-6517) / @wesm #### Related issues: - [[Developer] Tracking issue: use strings for 64-bit int64 and uint64 in integration test JSON format](https://github.com/apache/arrow/issues/22880) (is a child of) - [[C++][Integration] Regression to /u?int64/ as JSON::number](https://github.com/apache/arrow/issues/24645) (is fixed by) - [[Go][Integration] Represent 64 bit integers as JSON::string](https://github.com/apache/arrow/issues/24646) (is duplicated by) <sub>**Note**: *This issue was originally created as [ARROW-6517](https://issues.apache.org/jira/browse/ARROW-6517). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*</sub>