Davies Liu created SPARK-8844:
---------------------------------
Summary: head/collect is broken in SparkR
Key: SPARK-8844
URL: https://issues.apache.org/jira/browse/SPARK-8844
Project: Spark
Issue Type: Bug
Components: SparkR
Affects Versions: 1.5.0
Reporter: Davies Liu
Priority: Blocker
{code}
> t = tables(sqlContext)
> showDF(T)
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘showDF’ for signature
‘"logical"’
> showDF(t)
+---------+-----------+
|tableName|isTemporary|
+---------+-----------+
+---------+-----------+
> 15/07/06 09:59:10 WARN Executor: Told to re-register on heartbeat
>
>
> head(t)
Error in readTypedObject(con, type) :
Unsupported type for deserialization
> collect(t)
Error in readTypedObject(con, type) :
Unsupported type for deserialization
{code}
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