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https://issues.apache.org/jira/browse/HIVE-29748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated HIVE-29748:
--------------------------------
Description:
1. check EXPLAIN VECTORIZATION DETAIL <queryX>, look for:
{code}
notVectorizedReason: ...
{code}
2. implement vectorization holes :) <- a non-vectorized reason could make the
whole vertex unvectorized, so I'm assuming performance improvement in
benchmarks after taking care of this
was:
1. check EXPLAIN VECTORIZATION DETAIL <queryX>
2. implement vectorization holes :) <- a non-vectorized reason could make the
whole vertex unvectorized, so I'm assuming performance improvement in
benchmarks after taking care of this
> Check TPCDS vectorization coverage
> ----------------------------------
>
> Key: HIVE-29748
> URL: https://issues.apache.org/jira/browse/HIVE-29748
> Project: Hive
> Issue Type: Improvement
> Reporter: László Bodor
> Priority: Major
>
> 1. check EXPLAIN VECTORIZATION DETAIL <queryX>, look for:
> {code}
> notVectorizedReason: ...
> {code}
> 2. implement vectorization holes :) <- a non-vectorized reason could make
> the whole vertex unvectorized, so I'm assuming performance improvement in
> benchmarks after taking care of this
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