[jira] [Updated] (SPARK-15380) Generate code that stores a float/double value in each column from ColumnarBatch when DataFrame.cache() is used

["Michael Armbrust (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-15380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Armbrust updated SPARK-15380:
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    Target Version/s: 2.3.0  (was: 2.2.0)

> Generate code that stores a float/double value in each column from ColumnarBatch when DataFrame.cache() is used
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-15380
>                 URL: https://issues.apache.org/jira/browse/SPARK-15380
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Kazuaki Ishizaki
>
> When DataFrame.cache() is called, data will be stored as column-oriented storage in CachedBatch. The current Catalyst generates Java program to store a computed value to an InternalRow and then the value is stored into CachedBatch even if data is read from ColumnarBatch for ParquetReader. 
> This JIRA generates Java code to store a value into a ColumnarBatch, and store data from the ColumnarBatch to the CachedBatch. This JIRA handles only float and double types for a value.



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