Nemon Lou created HIVE-12480:
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Summary: Hive Counters "RECORDS_OUT" is wrong when using union
all
Key: HIVE-12480
URL: https://issues.apache.org/jira/browse/HIVE-12480
Project: Hive
Issue Type: Bug
Components: Statistics
Affects Versions: 1.2.1
Reporter: Nemon Lou
Priority: Minor
1,prepare
{noformat}
set hive.execution.engine=mr;
CREATE TABLE IF NOT EXISTS test(id INT);
insert into test values (1), (2);
{noformat}
2,the query that will return wrong counter
{noformat}
set hive.execution.engine=mr;
insert into test select * from test union all select * from test;
{noformat}
The counter "RECORDS_OUT_1_default.test" is expected as 4,but actually 8
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