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https://issues.apache.org/jira/browse/SPARK-19460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Cheung updated SPARK-19460:
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Yes- it's better to address the root issue with column name but it wouldn't
hurt to avoid confusing everyone by not using iris every where.
> Update dataset used in R documentation, examples to reduce warning noise and
> confusions
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-19460
> URL: https://issues.apache.org/jira/browse/SPARK-19460
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Affects Versions: 2.1.0
> Reporter: Felix Cheung
>
> Running build we have a bunch of warnings from using the `iris` dataset, for
> example.
> Warning in FUN(X[[1L]], ...) :
> Use Sepal_Length instead of Sepal.Length as column name
> Warning in FUN(X[[2L]], ...) :
> Use Sepal_Width instead of Sepal.Width as column name
> Warning in FUN(X[[3L]], ...) :
> Use Petal_Length instead of Petal.Length as column name
> Warning in FUN(X[[4L]], ...) :
> Use Petal_Width instead of Petal.Width as column name
> Warning in FUN(X[[1L]], ...) :
> Use Sepal_Length instead of Sepal.Length as column name
> Warning in FUN(X[[2L]], ...) :
> Use Sepal_Width instead of Sepal.Width as column name
> Warning in FUN(X[[3L]], ...) :
> Use Petal_Length instead of Petal.Length as column name
> Warning in FUN(X[[4L]], ...) :
> Use Petal_Width instead of Petal.Width as column name
> Warning in FUN(X[[1L]], ...) :
> Use Sepal_Length instead of Sepal.Length as column name
> Warning in FUN(X[[2L]], ...) :
> Use Sepal_Width instead of Sepal.Width as column name
> Warning in FUN(X[[3L]], ...) :
> Use Petal_Length instead of Petal.Length as column name
> These are the results of having `.` in the column name. For reference, see
> SPARK-12191, SPARK-11976. Since it involves changing SQL, if we couldn't
> support that there then we should strongly consider using other dataset
> without `.`, eg. `cars`
> And we should update this in API doc (roxygen2 doc string), vignettes,
> programming guide, R code example.
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