Perform explicit UnsafeRow projection in ColumnarToRow transition #5274
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Signed-off-by: Jason Lowe <jlowe@nvidia.com>
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Keeping this as a draft until this gets some at-scale performance tests |
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Premerge failed due to transitive Cloudera dependency, rekicking the build. |
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abellina
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Apr 19, 2022
sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuRowToColumnarExec.scala
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sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuRowToColumnarExec.scala
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abellina
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Apr 19, 2022
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The latest code changes do not appear to have a significant performance impact. Thanks to @mattahrens for running some performance tests. This should now be ready for review. |
jlowe
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revans2,
tgravescs,
GaryShen2008 and
NvTimLiu
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@revans2 @tgravescs if one of you could take a look that would be great, as it needs a codeowner approval as well. |
abellina
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Apr 25, 2022
abellina
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Apr 25, 2022
abellina
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Apr 25, 2022
revans2
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Apr 25, 2022
sql-plugin/src/main/java/com/nvidia/spark/rapids/UnsafeRowToColumnarBatchIterator.java
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abellina
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revans2
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Fixes #5189.
The row to columnar transition was assuming that every row coming in was an
UnsafeRowbut that is not always the case. This adds an explicit unsafe projection to the generated unsafe row iterator to handle those cases.