[jira] [Created] (SPARK-41810) SparkSession.createDataFrame does not respect the column names in the dictionary

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

Hyukjin Kwon created SPARK-41810:
------------------------------------

             Summary: SparkSession.createDataFrame does not respect the column names in the dictionary
                 Key: SPARK-41810
                 URL: https://issues.apache.org/jira/browse/SPARK-41810
             Project: Spark
          Issue Type: Sub-task
          Components: Connect
    Affects Versions: 3.4.0
            Reporter: Hyukjin Kwon


{code}
Failed example:
    with tempfile.TemporaryDirectory() as d:
        # Write a DataFrame into a JSON file
        spark.createDataFrame(
            [{"age": 100, "name": "Hyukjin Kwon"}]
        ).write.mode("overwrite").format("json").save(d)

        # Read the JSON file as a DataFrame.
        spark.read.format('json').load(d).show()
Expected:
    +---+------------+
    |age|        name|
    +---+------------+
    |100|Hyukjin Kwon|
    +---+------------+
Got:
    +---+------------+
    | _1|          _2|
    +---+------------+
    |100|Hyukjin Kwon|
    +---+------------+
{code}



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