[jira] [Created] (NIFI-5802) QueryRecord ignores field nullability and causes NPE with null input value

["Koji Kawamura (JIRA)" <ji...@apache.org>]

Koji Kawamura created NIFI-5802:
-----------------------------------

             Summary: QueryRecord ignores field nullability and causes NPE with null input value
                 Key: NIFI-5802
                 URL: https://issues.apache.org/jira/browse/NIFI-5802
             Project: Apache NiFi
          Issue Type: Bug
          Components: Extensions
    Affects Versions: 1.2.0
            Reporter: Koji Kawamura
            Assignee: Koji Kawamura


WIth Avro schema, a field can be defined as nullable by a union type. For example:
{code}
"type": [ "null", "boolean" ]
{code}

QueryRecord generates relational data types from the record schema. But it currently doesn't utilize the nullable information. And it leads to a NullPointerException when the incoming FlowFile has null values for the nullable fields.

A simple 'select * from FLOWFILE' can fail.

This issue was reported to nifi user ML. See the message for detail.
https://mail-archives.apache.org/mod_mbox/nifi-users/201811.mbox/%3CCAB10SGVgW2NR76UR1pYJvEZYTO3J1T7t_0q%2BUsQANp%3DcHxS-kw%40mail.gmail.com%3E



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