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https://issues.apache.org/jira/browse/ARROW-216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15328283#comment-15328283
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Wes McKinney commented on ARROW-216:
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I just took a look at this -- I had thought this was calling down to the
{{type_traits<BooleanType>::bytes_required}} specialization (which computes the
number of bytes required to store the indicated number of bits), but maybe this
is missed someplace?
> C++: BooleanBuilder uses storage ineffienctly
> ---------------------------------------------
>
> Key: ARROW-216
> URL: https://issues.apache.org/jira/browse/ARROW-216
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Uwe L. Korn
>
> Although Arrow uses bit-packing for booleans, we reserve {{length}} bytes in
> the BooleanBuilder. This should be bits, i.e. only 1/8.
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