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https://issues.apache.org/jira/browse/PARQUET-1840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved PARQUET-1840.
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Fix Version/s: cpp-1.6.0
Resolution: Fixed
Issue resolved by pull request 6908
[https://github.com/apache/arrow/pull/6908]
> [C++] DecodeSpaced copies more values then necessary
> ----------------------------------------------------
>
> Key: PARQUET-1840
> URL: https://issues.apache.org/jira/browse/PARQUET-1840
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Micah Kornfield
> Assignee: Micah Kornfield
> Priority: Major
> Labels: pull-request-available
> Fix For: cpp-1.6.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> * It potentially touches memory twice with memset
> * The stopping condition should be when the indices are equal
> Changing these could provide some marginal performance improvements depending
> on data shape.
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