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https://issues.apache.org/jira/browse/PARQUET-520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15172327#comment-15172327
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Wes McKinney commented on PARQUET-520:
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see patch: https://github.com/apache/parquet-cpp/pull/66
> Add version of LocalFileSource that uses memory-mapping for zero-copy reads
> ---------------------------------------------------------------------------
>
> Key: PARQUET-520
> URL: https://issues.apache.org/jira/browse/PARQUET-520
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Wes McKinney
> Assignee: Wes McKinney
>
> Repurposed this JIRA after PARQUET-533. Memory-mapping will save us memory
> allocations and performance in some applications. We could have it as an
> optional API.
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