Mykhailo Kysliuk created HIVE-20351:
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Summary: GenericUDFNamedStruct should constant fold at compile time
Key: HIVE-20351
URL: https://issues.apache.org/jira/browse/HIVE-20351
Project: Hive
Issue Type: Bug
Reporter: Mykhailo Kysliuk
Assignee: Mykhailo Kysliuk
Reproduced at hive-3.0.
When we run hive query:
{code:java}
select named_struct('Total','Total') from test;
{code}
We could see the ERROR at hiveserver logs:
{code:java}
2018-05-25T15:18:13,182 ERROR [main] optimizer.ConstantPropagateProcFactory:
Unable to evaluate
org.apache.hadoop.hive.ql.udf.generic.GenericUDFNamedStruct@a0bf272. Return
value unrecoginizable.
{code}
This error is not harmless because all results are correct. But named_struct
constant values should be processed correctly.
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