GitHub user sun-rui opened a pull request:
https://github.com/apache/spark/pull/8458
[SPARK-10049][SPARKR][WIP] Support collecting data of ArraryType in
DataFrame.
this PR will:
1. Enhance reflection in RBackend. Automatically matching a Java array to
Scala Seq when finding methods. Util functions like seq(), listToSeq() in R
side can be removed, as they will conflict with the Serde logic that transferrs
a Scala seq to R side.
2. Enhance the SerDe to support transferring a Scala seq to R side. Data
of ArrayType in DataFrame
after collection is observed to be of Scala Seq type.
3. Support ArrayType in createDataFrame().
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sun-rui/spark SPARK-10049
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8458.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #8458
----
commit 1f7ab9522c185cecb9f51ee882a28aa8ea534cc4
Author: Sun Rui <[email protected]>
Date: 2015-08-26T11:49:57Z
[SPARK-10049][SPARKR] Support collecting data of ArraryType in DataFrame.
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