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https://issues.apache.org/jira/browse/DRILL-5846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16426227#comment-16426227
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ASF GitHub Bot commented on DRILL-5846:
---------------------------------------
Github user vrozov commented on a diff in the pull request:
https://github.com/apache/drill/pull/1060#discussion_r179293968
--- Diff: exec/java-exec/pom.xml ---
@@ -836,6 +836,14 @@
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
</plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>2.3.2</version>
+ <configuration>
+ <compilerArgument>-XDignore.symbol.file</compilerArgument>
--- End diff --
Consider using `io.netty.util.internal.PlatformDependent` instead of
`sun.misc.Unsafe`.
> Improve Parquet Reader Performance for Flat Data types
> -------------------------------------------------------
>
> Key: DRILL-5846
> URL: https://issues.apache.org/jira/browse/DRILL-5846
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - Parquet
> Affects Versions: 1.11.0
> Reporter: salim achouche
> Assignee: salim achouche
> Priority: Major
> Labels: performance
> Fix For: 1.14.0
>
> Attachments: 2542d447-9837-3924-dd12-f759108461e5.sys.drill,
> 2542d49b-88ef-38e3-a02b-b441c1295817.sys.drill
>
>
> The Parquet Reader is a key use-case for Drill. This JIRA is an attempt to
> further improve the Parquet Reader performance as several users reported that
> Parquet parsing represents the lion share of the overall query execution. It
> tracks Flat Data types only as Nested DTs might involve functional and
> processing enhancements (e.g., a nested column can be seen as a Document;
> user might want to perform operations scoped at the document level that is no
> need to span all rows). Another JIRA will be created to handle the nested
> columns use-case.
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