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https://issues.apache.org/jira/browse/ARROW-13439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yibo Cai closed ARROW-13439.
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Fix Version/s: (was: 6.0.0)
Resolution: Won't Do
> [C++] Unify BasicDecimal128 and BasicDecimal256 classes
> -------------------------------------------------------
>
> Key: ARROW-13439
> URL: https://issues.apache.org/jira/browse/ARROW-13439
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
>
> BasicDecimal128 uses two dedicated int64 (higher, lower) to store the value.
> It's possible to use std::array<uint64, 2> to store the value, just like
> BasicDecimal256 does, and to unify the two classes.
> As decimal operations are quite expensive, guess this indirection won't cause
> performance loss.
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