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https://issues.apache.org/jira/browse/HIVE-4386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robin Morris updated HIVE-4386:
---
Description:
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.
Using an explicit intermediate table does work:
> create table foo_max as select day from partitioned_table where year=2013 and
> month=4;
> select max(day) from foo_max; drop table foo_max;
Several map-reduce jobs later, the correct answer is given.
was:
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.
> 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.
> Using an explicit intermediate table does work:
> > create table foo_max as select day from partitioned_table where year=2013
> > and month=4;
> > select max(day) from foo_max; drop table foo_max;
> Several map-reduce jobs later, the correct answer is given.
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