Jesus Camacho Rodriguez created HIVE-15474:
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Summary: Extend limit propagation for chain of RS-GB-RS operators
Key: HIVE-15474
URL: https://issues.apache.org/jira/browse/HIVE-15474
Project: Hive
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
The goal is to extend the work started in HIVE-14002.
For instance, given the following query:
{code:sql}
explain
select key, value, count(key + 1) as agg1 from src
group by key, value
order by key, value, agg1 limit 20;
{code:sql}
We can push the limit to the GBy operator. However, currently we do not do it.
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