[jira] [Updated] (SPARK-16434) Avoid record-per type dispatch in JSON when reading

["Wenchen Fan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-16434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan updated SPARK-16434:
--------------------------------
    Assignee: Hyukjin Kwon

> Avoid record-per type dispatch in JSON when reading
> ---------------------------------------------------
>
>                 Key: SPARK-16434
>                 URL: https://issues.apache.org/jira/browse/SPARK-16434
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Hyukjin Kwon
>            Assignee: Hyukjin Kwon
>             Fix For: 2.1.0
>
>
> Currently, {{JacksonParser.parse}} is doing type dispatch for each row to read appropriate values.
> It might not have to be done like this because the schema of {{DataFrame}} is already there. 
> So, appropriate converters can be created first according to the schema, and then apply them to each row.



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