Build me a python code

I need to help me with a Python code to get the data from Postgres SQL server(It needs to run SQL queries on the server which has filters) and dump it into Databricks table. This has to be done in small intervals as the table is very very huge. Need to get data from 2018 to till date with probably intervals of 3months and append to same table. Once we get the data till date, from next time it has to be just incremental load from that last processed date.