Jesus Camacho Rodriguez created HIVE-17073:
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Summary: Incorrect result with vectorization and
SharedWorkOptimizer
Key: HIVE-17073
URL: https://issues.apache.org/jira/browse/HIVE-17073
Project: Hive
Issue Type: Bug
Components: Vectorization
Affects Versions: 3.0.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
We get incorrect result with vectorization and multi-output Select operator
created by SharedWorkOptimizer. It can be reproduced in the following way.
{code:title=Correct}
select count(*) as h8_30_to_9
from src
join src1 on src.key = src1.key
where src1.value = "val_278";
OK
2
{code}
{code:title=Correct}
select count(*) as h9_to_9_30
from src
join src1 on src.key = src1.key
where src1.value = "val_255";
OK
2
{code}
{code:title=Incorrect}
select * from (
select count(*) as h8_30_to_9
from src
join src1 on src.key = src1.key
where src1.value = "val_278") s1
join (
select count(*) as h9_to_9_30
from src
join src1 on src.key = src1.key
where src1.value = "val_255") s2;
OK
2 0
{code}
Problem seems to be that some ds in the batch row need to be re-initialized
after they have been forwarded to each output.
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