"Are you implying that a scalable Data Warehouse solution could be implemented using Python and serialised files?"

Not "implying". I'm trying to state it as clearly as I can. A scalable data warehouse solution involves a lot of flat file processing.

ETL, for example, is mostly a flat-file pipeline. It …

Here's a typical problem that results from "SQL Hegemony" -- all data must be in a database, and all access must be via SQL. This can also be called the "SQL Fetish" school of programming.

War Story. On a Data Warehousing project, we had to load and process the organizational hierarchy …