[jira] [Commented] (SPARK-21440) Refactor ArrowConverters and add DecimalType, ArrayType and StructType support.

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-21440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16089779#comment-16089779 ] 

Apache Spark commented on SPARK-21440:
--------------------------------------

User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/18655

> Refactor ArrowConverters and add DecimalType, ArrayType and StructType support.
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-21440
>                 URL: https://issues.apache.org/jira/browse/SPARK-21440
>             Project: Spark
>          Issue Type: Sub-task
>          Components: PySpark, SQL
>    Affects Versions: 2.3.0
>            Reporter: Takuya Ueshin
>
> This is a refactoring of {{ArrowConverters}} and related classes.
> # Introduce {{ArrowColumnVector}} to read Arrow data in Java.
> # Refactor {{ColumnWriter}} as {{ArrowWriter}}.
> # Add {{DecimalType}}, {{ArrayType}} and {{StructType}} support.
> # Refactor {{ArrowConverters}} to skip intermediate {{ArrowRecordBatch}} creation.



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