Hyukjin Kwon created SPARK-18943:
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Summary: 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
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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