Steve Carlin created HIVE-22262:
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Summary: Aggregate pushdown through join may generate additional
rewriting opportunities
Key: HIVE-22262
URL: https://issues.apache.org/jira/browse/HIVE-22262
Project: Hive
Issue Type: Bug
Components: CBO
Affects Versions: 3.1.2
Reporter: Steve Carlin
Attachments: eager-v2.sql
In this case, there is a function used in the query and materialized view, but
the aggregate is not being pushed down. Script is attached.
Example query and materialized view:
create materialized view av1 stored as orc as select fk1, fk2, fk3,
to_date(fk4), sum(1) from fact group by 1, 2, 3, 4;
explain cbo select pk1, dim2.fk4, sum(1), count(c1)
from fact, dim2
where to_date(fact.fk4) = dim2.fk4
group by 1, 2
order by 1, 2;
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