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From "Reynold Xin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-14098) Generate code that get a float/double value in each column from CachedBatch when DataFrame.cache() is called
Date Tue, 01 Nov 2016 20:55:58 GMT

     [ https://issues.apache.org/jira/browse/SPARK-14098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Reynold Xin updated SPARK-14098:
--------------------------------
    Target Version/s: 2.2.0  (was: 2.1.0)

> Generate code that get a float/double value in each column from CachedBatch when DataFrame.cache()
is called
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-14098
>                 URL: https://issues.apache.org/jira/browse/SPARK-14098
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Kazuaki Ishizaki
>
> When DataFrame.cache() is called, data is stored as column-oriented storage in CachedBatch.
The current Catalyst generates Java program to get a value of a column from an InternalRow
that is translated from CachedBatch. This issue generates Java code to get a value of a column
from CachedBatch. While a column for a cache may be compressed, this issue handles float and
double types that are never compressed. 
> Other primitive types, whose column may be compressed, will be addressed in another entry.



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