zhuwei created HIVE-19202:
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Summary: CBO failed due to NullPointerException in
HiveAggregate.isBucketedInput()
Key: HIVE-19202
URL: https://issues.apache.org/jira/browse/HIVE-19202
Project: Hive
Issue Type: Bug
Reporter: zhuwei
Assignee: zhuwei
I ran a query with join and group by with below settings, COB failed due to
NullPointerException in HiveAggregate.isBucketedInput()
set hive.execution.engine=tez;
set hive.cbo.costmodel.extended=true;
In class HiveRelMdDistribution, we implemented below functions:
public RelDistribution distribution(HiveAggregate aggregate, RelMetadataQuery
mq)
public RelDistribution distribution(HiveJoin join, RelMetadataQuery mq)
But in HiveAggregate.isBucketedInput, the argument passed to distribution is
"this.getInput()"
, obviously it's not right here. The right argument needed is "this"
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