Hyunsik Choi created TAJO-974:
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Summary: Eliminate unexpected case condition in SubQuery
Key: TAJO-974
URL: https://issues.apache.org/jira/browse/TAJO-974
Project: Tajo
Issue Type: Bug
Components: distributed query plan
Reporter: Hyunsik Choi
Fix For: 0.9.0
Please take a loot at the below code. In SubQuery::calculateShuffleOutputNum()
method, if-condition will be passed through the unexpected case if the plan is
neither group by and join. In current implementation, distinct group-by
operator can cause this case. Actually, the below code is messy. We need to
directly handle distinct group by and clean up the below code.
{code:title="SubQuery::calculateShuffleOutputNum()"}
} else {
LOG.info("============>>>>> Unexpected Case! <<<<<================");
long volume = getInputVolume(subQuery.masterPlan, subQuery.context,
subQuery.block);
{code}
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