Robin Morris created HIVE-4386:
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Summary: max() and min() return NULL on partition column;
distinct() returns nothing
Key: HIVE-4386
URL: https://issues.apache.org/jira/browse/HIVE-4386
Project: Hive
Issue Type: Bug
Components: UDF
Affects Versions: 0.8.1
Reporter: Robin Morris
partitioned_table is partitioned on year, month, day.
> select max(day) from partitioned_table where year=2013 and month=4;
spins up zero mappers, one reducer, and returns NULL. Same for
> select min(day) from ...
> select distinct(day) from... returns nothing at all.
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