Steve Carlin created HIVE-22264:
-----------------------------------
Summary: Degenerate case where mv not being used: computing
aggregate on group by field
Key: HIVE-22264
URL: https://issues.apache.org/jira/browse/HIVE-22264
Project: Hive
Issue Type: Sub-task
Components: CBO
Affects Versions: 3.1.2
Reporter: Steve Carlin
Attachments: compensable.sql
This is a degenerate case, but still should work. There is no reason to do a
min(userid) when grouping by userid (should just use "userid" directly), but it
should rewrite regardless
Script is attached.
Example:
create materialized view view1 stored as orc as select userid, sum(sales_amt)
from base group by 1;
explain extended select min(userid) from base group by userid;
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
