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Posted to dev@parquet.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2020/05/01 18:46:00 UTC
[jira] [Updated] (PARQUET-1820) [C++] Use a column filter hint to
inform read prefetching in Arrow reads
[ https://issues.apache.org/jira/browse/PARQUET-1820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney updated PARQUET-1820:
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Summary: [C++] Use a column filter hint to inform read prefetching in Arrow reads (was: [C++] Use a column filter hint to inform read prefetching)
> [C++] Use a column filter hint to inform read prefetching in Arrow reads
> ------------------------------------------------------------------------
>
> Key: PARQUET-1820
> URL: https://issues.apache.org/jira/browse/PARQUET-1820
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: David Li
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10h 20m
> Remaining Estimate: 0h
>
> As a follow up to PARQUET-1698 and ARROW-7995, we should use the I/O coalescing facility (where available and enabled), in combination with a column filter hint, to compute and prefetch the exact byte ranges we will be reading (using the metadata). This should further improve performance on remote object stores like Amazon S3.
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