Forensic APIs for Data Acquisition from LoRaWAN Servers

We are developing a LoRaWAN IoT forensics project which requires forensic APIs that will aid in data acquisition from all the available lorawan servers.We have a few queries regarding the process

  1. the data in the Redis is mentioned as transient data,does it mean its is similar to a volatile memory? what type of data is stored in it?
    2.What is the datalog limitation in PostgreSQL?is it possible to change the limitation?if yes how?
    3.will it be possible to integrate our APIs to chirpstack on successful completion?