I have a complex flow where I created 3 attributes, [name, date, json_content] extracted from other flow file data that need to go into a database. How can I take these 3 attributes convert them to a new flow file with those columns? The schema I will use has those names.  Schema: { "type": "record", "name": "mytable", "fields": [ {"name": "name","type": [ "string" ]}, {"name": "date","type": "type" : [ "null", { "type" : "long", "logicalType" : "timestamp-millis" } ], "default" : null } }, {"name": "json_content","type": [ "string" ] }] } ... View more