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From "Michael Armbrust (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-16412) Generate Java code that gets an array in each column of CachedBatch when DataFrame.cache() is called
Date Thu, 01 Jun 2017 23:02:10 GMT

     [ https://issues.apache.org/jira/browse/SPARK-16412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Armbrust updated SPARK-16412:
-------------------------------------
    Target Version/s: 2.3.0  (was: 2.2.0)

> Generate Java code that gets an array in each column of CachedBatch when DataFrame.cache()
is called
> ----------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-16412
>                 URL: https://issues.apache.org/jira/browse/SPARK-16412
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Kazuaki Ishizaki
>
> Once SPARK-14098 is merged, we will migrate a feature in this JIRA entry.
> When DataFrame.cache() is called, data is stored as column-oriented storage in CachedBatch.
The current Catalyst generates Java program to get an array in a column from an InternalRow
that is copied from CachedBatch. This JIRA entry generates Java code to directly get the array
in a column from CachedBatch without copy. This JIRA entry supports an array (ArrayType in
Spark).



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