Uwe L. Korn created ARROW-553:
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Summary: C++: Faster null bitmap building
Key: ARROW-553
URL: https://issues.apache.org/jira/browse/ARROW-553
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Uwe L. Korn
Assignee: Uwe L. Korn
Currently we build up the bitmaps bit-by-bit which takes very long. Instead we
can build them byte-by-byte in the general case and use {{memset}} for the
non-null case.
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