[jira] [Created] (NIFI-8365) JSON record reader mishandles deep CHOICE types

["Tamas Palfy (Jira)" <ji...@apache.org>]

Tamas Palfy created NIFI-8365:
---------------------------------

             Summary: JSON record reader mishandles deep CHOICE types
                 Key: NIFI-8365
                 URL: https://issues.apache.org/jira/browse/NIFI-8365
             Project: Apache NiFi
          Issue Type: Bug
            Reporter: Tamas Palfy


The AbstractJsonRowRecordReader when trying to find the correct schema for a given record it may come with a wrong one.
For example:

Suppose the following record:

{code:json}
{
  "dataCollection":[
    {
      "record": {
        "integer": 1,
        "boolean": true
      }
    },
    {
      "record": {
        "integer": 2,
        "string": "stringValue2"
      }
    }
  ]
}
{code}
Even if the schema is correctly set (which is may not be the case as infer schema itself has a similar issue),
the second record
{code:json}
    {
      "record": {
        "integer": 2,
        "string": "stringValue2"
      }
    }
{code}
will be assigned the schema of the first.

This will cause the fields that are not present in the schema to be omitted when writing it out.




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