Wes McKinney created ARROW-9842:
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Summary: [C++] Explore alternative strategy for Compare kernel
implementation for better performance
Key: ARROW-9842
URL: https://issues.apache.org/jira/browse/ARROW-9842
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Wes McKinney
Fix For: 2.0.0
The compiler may be able to vectorize comparison options if the bitpacking of
results is deferred until the end (or in chunks). Instead, a temporary bytemap
can be populated on a chunk-by-chunk basis and then the bytemaps can be
bitpacked into the output buffer. This may also reduce the code size of the
compare kernels (which are actually quite large at the moment)
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