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https://issues.apache.org/jira/browse/SPARK-17967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677418#comment-16677418
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Reynold Xin commented on SPARK-17967:
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BTW how important is this? Seems like for CSV people can just replace the null
values with null themselves using the programmatic API.
> Support for list or other types as an option for datasources
> ------------------------------------------------------------
>
> Key: SPARK-17967
> URL: https://issues.apache.org/jira/browse/SPARK-17967
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0, 2.0.1
> Reporter: Hyukjin Kwon
> Priority: Major
>
> This was discussed in SPARK-17878
> For other datasources, it seems okay with string/long/boolean/double value as
> an option but it seems it is not enough for the datasource such as CSV. As it
> is an interface for other external datasources, I guess it'd affect several
> ones out there.
> I took a look a first but it seems it'd be difficult to support this (need to
> change a lot).
> One suggestion is support this as a JSON array.
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