[jira] [Created] (SPARK-36947) Exception when trying to access Row field using getAs method

["Alexandros Mavrommatis (Jira)" <ji...@apache.org>]

Alexandros Mavrommatis created SPARK-36947:
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             Summary: Exception when trying to access Row field using getAs method
                 Key: SPARK-36947
                 URL: https://issues.apache.org/jira/browse/SPARK-36947
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.1.2
         Environment: Spark 3.1.2 (but this also may affect other versions as well)
            Reporter: Alexandros Mavrommatis


I have an input dataframe *df* with the following schema:

 
{code:java}
|-- origin: string (nullable = true)
|-- product: struct (nullable = true)
|    |-- id: integer (nullable = true){code}
 

when I try to select the first 20 rows of the id column I execute:

 
{code:java}
df.select("product.id").show(20, false)
{code}
**and I manage to get the result. But when I execute the following: 

 
{code:java}
df.map(_.getAs[Int]("product.id")).show(20, false){code}
 

I get the following error:

 
{code:java}
java.lang.IllegalArgumentException: Field "product.id" does not exist.{code}
 



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