Matt Burgess created NIFI-5678:
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             Summary: ValidateRecord does not handle Map type correctly
                 Key: NIFI-5678
                 URL: https://issues.apache.org/jira/browse/NIFI-5678
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
            Reporter: Matt Burgess


Consider the following Avro Schema:

{{{
    "name" : "test",
    "type" : "record",
    "fields" : [ {
        "name" : "field1",
        "type" : {
            "type" : "map",
            "values" : "string"
        }
    } ]
}}}

and corresponding JSON data adhering to the schema:

{{[{
    "field1": {
        "toto" : "v1",
        "titi" : "v2"
    }
}]}}

ValidateRecord marks the record as invalid though it should be valid. The 
message in the provenance event is "Record #1 is invalid due to:
MapRecord[{toto=v1, titi=v2}] is not a valid value for /field1: Value is of 
type org.apache.nifi.serialization.record.MapRecord but was expected to be of 
type MAP[STRING]".



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