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https://issues.apache.org/jira/browse/SPARK-16351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-16351:
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Assignee: Apache Spark
> Avoid record-per type dispatch in JSON when writing
> ---------------------------------------------------
>
> Key: SPARK-16351
> URL: https://issues.apache.org/jira/browse/SPARK-16351
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Hyukjin Kwon
> Assignee: Apache Spark
>
> Currently, {{JacksonGenerator.apply}} is doing type-based dispatch for each
> row to write appropriate values.
> It might not have to be done like this because the schema of {{DataFrame}} is
> already there.
> So, appropriate writers can be created first according to the schema, and
> then apply them to each row. This approach is similar with
> {{CatalystWriteSupport}}.
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