[jira] [Commented] (SPARK-23459) Improve the error message when unknown column is specified in partition columns

["Kazuaki Ishizaki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-23459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369346#comment-16369346 ] 

Kazuaki Ishizaki commented on SPARK-23459:
------------------------------------------

Have you started working for this? If not, I can take it.

> Improve the error message when unknown column is specified in partition columns
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-23459
>                 URL: https://issues.apache.org/jira/browse/SPARK-23459
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Xiao Li
>            Priority: Major
>              Labels: starter
>
> {noformat}
>   test("save with an unknown partition column") {
>     withTempDir { dir =>
>       val path = dir.getCanonicalPath
>         Seq(1L -> "a").toDF("i", "j").write
>           .format("parquet")
>           .partitionBy("unknownColumn")
>           .save(path)
>     }
>   }
> {noformat}
> We got the following error message:
> {noformat}
> Partition column unknownColumn not found in schema StructType(StructField(i,LongType,false), StructField(j,StringType,true));
> {noformat}
> We should not call toString, but catalogString in the function `partitionColumnsSchema` of `PartitioningUtils.scala`



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