Wes McKinney created ARROW-9034:
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Summary: [C++] Implement binary (two bitmap) version of
BitBlockCounter
Key: ARROW-9034
URL: https://issues.apache.org/jira/browse/ARROW-9034
Project: Apache Arrow
Issue Type: New Feature
Components: C++
Reporter: Wes McKinney
Assignee: Wes McKinney
Fix For: 1.0.0
The current BitBlockCounter from ARROW-9029 is useful for unary operations.
Some operations involve multiple bitmaps and so it's useful to be able to
determine the block popcounts of the AND of the respective words in the
bitmaps. So each returned block would contain the number of bits that are set
in both bitmaps at the same locations
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