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Posted to dev@parquet.apache.org by "Micah Kornfield (Jira)" <ji...@apache.org> on 2020/04/13 05:37:00 UTC
[jira] [Updated] (PARQUET-1840) [C++] DecodeSpaced copies more
values then necessary
[ https://issues.apache.org/jira/browse/PARQUET-1840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Micah Kornfield updated PARQUET-1840:
-------------------------------------
Summary: [C++] DecodeSpaced copies more values then necessary (was: [C++] DecodeSpaced copies/touches more values then necessary)
> [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
> Time Spent: 20m
> 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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