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  1. Spark
  2. SPARK-22442

Schema generated by Product Encoder doesn't match case class field name when using non-standard characters

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.2, 2.1.2, 2.2.0
    • 2.2.1, 2.3.0
    • SQL
    • None

    Description

      Product encoder encodes special characters wrongly when field name contains certain nonstandard characters.

      For example for:

      case class MyType(`field.1`: String, `field 2`: String)

      we will get the following schema

      root

      – field$u002E1: string (nullable = true)
      – field$u00202: string (nullable = true)

      As a consequence of this issue a DataFrame with the correct schema can't be converted to a Dataset using .as[MyType]

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            viirya L. C. Hsieh
            mikelsanvi Mikel San Vicente
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            Dates

              Created:
              Updated:
              Resolved: