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Posted to issues@spark.apache.org by "Dmitriy Selivanov (JIRA)" <ji...@apache.org> on 2016/04/01 10:58:25 UTC

[jira] [Updated] (SPARK-14325) some strange name conflicts in `group_by`

     [ https://issues.apache.org/jira/browse/SPARK-14325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitriy Selivanov updated SPARK-14325:
--------------------------------------
    Description: 
group_by strange behaviour when try to aggregate by column with name "x".

consider following example

    df
    # DataFrame[userId:bigint, type:string, j:int, x:int]
    group_by(df$userId, df$type, df$j) %>% agg(x = "sum")
    #Error in (function (classes, fdef, mtable)  : 
    #  unable to find an inherited method for function ‘agg’ for signature ‘"character"’

after renaming x -> x2 works just file.

  was:
group_by strange behaviour when try to aggregate by column with name "x".

consider following example
```
df
# DataFrame[userId:bigint, type:string, j:int, x:int]
group_by(df$userId, df$type, df$j) %>% agg(x = "sum")
#Error in (function (classes, fdef, mtable)  : 
#  unable to find an inherited method for function ‘agg’ for signature ‘"character"’
```
after renaming x -> x2 works just file.


> some strange name conflicts in `group_by`
> -----------------------------------------
>
>                 Key: SPARK-14325
>                 URL: https://issues.apache.org/jira/browse/SPARK-14325
>             Project: Spark
>          Issue Type: Bug
>          Components: SparkR
>    Affects Versions: 1.6.0, 1.6.1
>         Environment: sparkR 1.6.0
>            Reporter: Dmitriy Selivanov
>
> group_by strange behaviour when try to aggregate by column with name "x".
> consider following example
>     df
>     # DataFrame[userId:bigint, type:string, j:int, x:int]
>     group_by(df$userId, df$type, df$j) %>% agg(x = "sum")
>     #Error in (function (classes, fdef, mtable)  : 
>     #  unable to find an inherited method for function ‘agg’ for signature ‘"character"’
> after renaming x -> x2 works just file.



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