Navis created HIVE-3852:
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Summary: Multi-groupby optimization fails when same distinct
column is used twice or more
Key: HIVE-3852
URL: https://issues.apache.org/jira/browse/HIVE-3852
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Navis
Assignee: Navis
Priority: Trivial
{code}
FROM INPUT
INSERT OVERWRITE TABLE dest1
SELECT INPUT.key, sum(distinct substr(INPUT.value,5)), count(distinct
substr(INPUT.value,5)) GROUP BY INPUT.key
INSERT OVERWRITE TABLE dest2
SELECT INPUT.key, sum(distinct substr(INPUT.value,5)), avg(distinct
substr(INPUT.value,5)) GROUP BY INPUT.key;
{code}
fails with exception FAILED: IndexOutOfBoundsException Index: 0,Size: 0
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