What I am trying to do is , if the unformatted text is like
updating demand record with key:202107231924440412212356|current demand quantity:1|quantity getting reduced:1|shipmentno:170801380
then I want to create field like key,quantity, shipmentno. I don't want to predefine the fields. This will help me to run stats on some unformatted logs for a specific field, lets say 'shipmentno'