Jesus Camacho Rodriguez created HIVE-13804:
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Summary: Propagate constant expressions through insert
Key: HIVE-13804
URL: https://issues.apache.org/jira/browse/HIVE-13804
Project: Hive
Issue Type: Sub-task
Components: CBO
Affects Versions: 2.1.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
Follow-up of HIVE-13068.
The problem is that CBO optimizes the select query and then the insert part of
the query is attached; after HIVE-13068, ConstantPropagate in Hive does not
kick in anymore because CBO optimized the plan, thus we may miss opportunity to
propagate constant till the top of the plan.
Ex. ql/src/test/results/clientpositive/cp_sel.q.out
{noformat}
insert overwrite table testpartbucket partition(ds,hr) select key,value,'hello'
as ds, 'world' as hr from srcpart where hr=11;
{noformat}
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