Major Description
I have used PutParquet to create Parquet files from Nifi Records. In trying to convert the parquet back to json by using FetchParquet, I keep getting errors on what seems like any array field. I have had successes on data that contained no arrays.
The error in the log is cannont convert a value [xxx, yyy] where xxx and yyy are random strings of type class java.util.ArrayList because no compatible type exist in the UNION of field z.
I am also see the same error when the value is [] (empty array) as well.
I have been successful gong from json to avro and avro to json with the same schema registry values.
I am defining array fields as follows:
"type" : [
"null",
{ "type" : "array", "items" : "string" }
],
"default": null
}
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