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From "Haidar Hadi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-12970) Error in documentation
Date Sun, 24 Jan 2016 19:33:40 GMT

    [ https://issues.apache.org/jira/browse/SPARK-12970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15114485#comment-15114485
] 

Haidar Hadi commented on SPARK-12970:
-------------------------------------

let's consider the following code:

import org.apache.spark.sql.types._
 val struct = StructType(StructField("f1", StringType, true) :: Nil)
 val row = Row(1)
 println(row.fieldIndex("f1"))
 
which generates the following error when executed:
Exception in thread "main" java.lang.UnsupportedOperationException: fieldIndex on a Row without
schema is undefined.


> Error in documentation 
> -----------------------
>
>                 Key: SPARK-12970
>                 URL: https://issues.apache.org/jira/browse/SPARK-12970
>             Project: Spark
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 1.6.0
>            Reporter: Haidar Hadi
>            Priority: Minor
>              Labels: documentation
>
> The provided example in this doc https://spark.apache.org/docs/1.4.0/api/java/org/apache/spark/sql/types/StructType.html
for creating Row from Struct is wrong
>  // Create a Row with the schema defined by struct
>  val row = Row(Row(1, 2, true))
>  // row: Row = {@link 1,2,true}
>  
> the above example does not create a Row object with schema.
> this error is in the scala docs too. 



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