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https://issues.apache.org/jira/browse/ARROW-6720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17064908#comment-17064908
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Wes McKinney commented on ARROW-6720:
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Where do things stand on this project?
> [JAVA][C++]Support Parquet Read and Write in Java
> -------------------------------------------------
>
> Key: ARROW-6720
> URL: https://issues.apache.org/jira/browse/ARROW-6720
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++, Java
> Affects Versions: 0.15.0
> Reporter: Chendi.Xue
> Assignee: Chendi.Xue
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.17.0
>
> Time Spent: 37h 20m
> Remaining Estimate: 0h
>
> We added a new java interface to support parquet read and write from hdfs or
> local file.
> The purpose of this implementation is that when we loading and dumping
> parquet data in Java, we can only use rowBased put and get methods. Since
> arrow already has C++ implementation to load and dump parquet, so we wrapped
> those codes as Java APIs.
> After test, we noticed in our workload, performance improved more than 2x
> comparing with rowBased load and dump. So we want to contribute codes to
> arrow.
> since this is a total independent change, there is no codes change to current
> arrow codes. We added two folders as listed: java/adapter/parquet and
> cpp/src/jni/parquet
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