[jira] [Created] (SPARK-21536) Remove the workaroud to allow dots in field names in R's createDataFame

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

Hyukjin Kwon created SPARK-21536:
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             Summary: Remove the workaroud to allow dots in field names in R's createDataFame
                 Key: SPARK-21536
                 URL: https://issues.apache.org/jira/browse/SPARK-21536
             Project: Spark
          Issue Type: Improvement
          Components: SparkR
    Affects Versions: 2.3.0
            Reporter: Hyukjin Kwon
            Priority: Minor


We are currently converting dots to underscore in some cases as below in SparkR

{code}
> createDataFrame(list(list(1)), "a.a")
SparkDataFrame[a_a:double]
...
In FUN(X[[i]], ...) : Use a_a instead of a.a  as column name
{code}

{code}
> createDataFrame(list(list(a.a = 1)))
SparkDataFrame[a_a:double]
...
In FUN(X[[i]], ...) : Use a_a instead of a.a  as column name
{code}

This looks introduced in the first place due to SPARK-2775 but now it is fixed in SPARK-6898.



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