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https://issues.apache.org/jira/browse/SPARK-18943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-18943:
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Assignee: Apache Spark
> Avoid per-record type dispatch in CSV when reading
> --------------------------------------------------
>
> Key: SPARK-18943
> URL: https://issues.apache.org/jira/browse/SPARK-18943
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Hyukjin Kwon
> Assignee: Apache Spark
>
> This is similar with https://issues.apache.org/jira/browse/SPARK-16434
> {{CSVRelation.csvParser}} does type dispatch for each value in each row.
> We can prevent this because the schema is already kept in {{CSVRelation}}.
> So, converters can be created first according to the schema, and then apply
> them to each.
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