lirui-apache commented on pull request #15712:
URL: https://github.com/apache/flink/pull/15712#issuecomment-838095484
Hi @hehuiyuan , I tried reading the parquet file you attached with both
hive-2.0.0 and hive-2.3.4. Hive-2.0.0 returns `hehuiyuan NULL` and
hive-2.3.4 returns `hehuiyuan {}`.
So I'd prefer to return `NULL` in `HiveInspectors` if the map object is
null. On flink side we actually can't decide whether the result should be null
or empty map. So it's better to just return null when hive gives us null. WDYT?
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