[jira] [Commented] (SPARK-6775) Simplify CatalystConverter class hierarchy and pass in Parquet schema

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

    [ https://issues.apache.org/jira/browse/SPARK-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14615491#comment-14615491 ] 

Apache Spark commented on SPARK-6775:
-------------------------------------

User 'liancheng' has created a pull request for this issue:
https://github.com/apache/spark/pull/7231

> Simplify CatalystConverter class hierarchy and pass in Parquet schema
> ---------------------------------------------------------------------
>
>                 Key: SPARK-6775
>                 URL: https://issues.apache.org/jira/browse/SPARK-6775
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 1.0.2, 1.1.1, 1.2.1, 1.3.0
>            Reporter: Cheng Lian
>            Assignee: Cheng Lian
>
> {{CataystConverter}} classes are used to convert Parquet records to Spark SQL row objects. Current converter implementations have the following problems:
> # They simply ignore original Parquet schema, which makes adding Parquet backwards-compatibility rules impossible.
> # They are unnecessary over complicated.
> # {{SpecificMutableRow}} is only used for structs whose fields are all of primitive types.



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